Blazor Tree Grid Cell Editing

La edición de celdas Ignite UI for Blazor en Blazor cuadrícula de árbol proporciona una gran capacidad de manipulación de datos del contenido de celdas individuales dentro del componente de cuadrícula de árbol de Blazor y viene con una potente API para operaciones CRUD React. Es una característica fundamental en aplicaciones como hojas de cálculo, tablas de datos y cuadrículas de datos, lo que permite a los usuarios agregar, editar o actualizar datos dentro de celdas específicas. De forma predeterminada, la cuadrícula de Ignite UI for Blazor se utiliza en la edición de celdas. Y debido a la plantilla de edición de celdas predeterminada, habrá diferentes editores basados en el tipo de datos de columna Top of Form.

Además, puede definir sus propias plantillas personalizadas para acciones de actualización de datos y anular el comportamiento predeterminado para confirmar y descartar cualquier cambio.

すぐに使用できる機能のフルセット は、ページング、ソート、フィルタリング、編集、グループ化から行と列の仮想化まで、あらゆる機能をカバーします。.NET 開発者には制限はありません。

無料で試してみる

Blazor Tree Grid Cell Editing and Edit Templates Example

EXAMPLE

DATA

MODULES

RAZOR

CSS

using System;
using System.Collections.Generic;
public class EmployeesNestedTreeDataItem
{
    public double Age { get; set; }
    public string HireDate { get; set; }
    public double ID { get; set; }
    public string Name { get; set; }
    public string Phone { get; set; }
    public bool OnPTO { get; set; }
    public double ParentID { get; set; }
    public string Title { get; set; }
}

public class EmployeesNestedTreeData
    : List<EmployeesNestedTreeDataItem>
{
    public EmployeesNestedTreeData()
    {
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 55,
            HireDate = @"2008-03-20",
            ID = 1,
            Name = @"Johnathan Winchester",
            Phone = @"0251-031259",
            OnPTO = false,
            ParentID = -1,
            Title = @"Development Manager"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 42,
            HireDate = @"2014-01-22",
            ID = 4,
            Name = @"Ana Sanders",
            Phone = @"(21) 555-0091",
            OnPTO = true,
            ParentID = -1,
            Title = @"CEO"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 49,
            HireDate = @"2014-01-22",
            ID = 18,
            Name = @"Victoria Lincoln",
            Phone = @"(071) 23 67 22 20",
            OnPTO = true,
            ParentID = -1,
            Title = @"Accounting Manager"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 61,
            HireDate = @"2010-01-01",
            ID = 10,
            Name = @"Yang Wang",
            Phone = @"(21) 555-0091",
            OnPTO = false,
            ParentID = -1,
            Title = @"Localization Manager"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 43,
            HireDate = @"2011-06-03",
            ID = 3,
            Name = @"Michael Burke",
            Phone = @"0452-076545",
            OnPTO = true,
            ParentID = 1,
            Title = @"Senior Software Developer"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 29,
            HireDate = @"2009-06-19",
            ID = 2,
            Name = @"Thomas Anderson",
            Phone = @"(14) 555-8122",
            OnPTO = false,
            ParentID = 1,
            Title = @"Senior Software Developer"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 31,
            HireDate = @"2014-08-18",
            ID = 11,
            Name = @"Monica Reyes",
            Phone = @"7675-3425",
            OnPTO = false,
            ParentID = 1,
            Title = @"Software Development Team Lead"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 35,
            HireDate = @"2015-09-17",
            ID = 6,
            Name = @"Roland Mendel",
            Phone = @"(505) 555-5939",
            OnPTO = false,
            ParentID = 11,
            Title = @"Senior Software Developer"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 44,
            HireDate = @"2009-10-11",
            ID = 12,
            Name = @"Sven Cooper",
            Phone = @"0695-34 67 21",
            OnPTO = true,
            ParentID = 11,
            Title = @"Senior Software Developer"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 44,
            HireDate = @"2014-04-04",
            ID = 14,
            Name = @"Laurence Johnson",
            Phone = @"981-443655",
            OnPTO = false,
            ParentID = 4,
            Title = @"Director"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 25,
            HireDate = @"2017-11-09",
            ID = 5,
            Name = @"Elizabeth Richards",
            Phone = @"(2) 283-2951",
            OnPTO = true,
            ParentID = 4,
            Title = @"Vice President"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 39,
            HireDate = @"2010-03-22",
            ID = 13,
            Name = @"Trevor Ashworth",
            Phone = @"981-443655",
            OnPTO = true,
            ParentID = 5,
            Title = @"Director"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 44,
            HireDate = @"2014-04-04",
            ID = 17,
            Name = @"Antonio Moreno",
            Phone = @"(505) 555-5939",
            OnPTO = false,
            ParentID = 18,
            Title = @"Senior Accountant"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 50,
            HireDate = @"2007-11-18",
            ID = 7,
            Name = @"Pedro Rodriguez",
            Phone = @"035-640230",
            OnPTO = false,
            ParentID = 10,
            Title = @"Senior Localization Developer"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 27,
            HireDate = @"2016-02-19",
            ID = 8,
            Name = @"Casey Harper",
            Phone = @"0342-023176",
            OnPTO = true,
            ParentID = 10,
            Title = @"Senior Localization"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 25,
            HireDate = @"2017-11-09",
            ID = 15,
            Name = @"Patricia Simpson",
            Phone = @"069-0245984",
            OnPTO = false,
            ParentID = 7,
            Title = @"Localization Intern"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 39,
            HireDate = @"2010-03-22",
            ID = 9,
            Name = @"Francisco Chang",
            Phone = @"(91) 745 6200",
            OnPTO = false,
            ParentID = 7,
            Title = @"Localization Intern"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 25,
            HireDate = @"2018-03-18",
            ID = 16,
            Name = @"Peter Lewis",
            Phone = @"069-0245984",
            OnPTO = true,
            ParentID = 7,
            Title = @"Localization Intern"
        });
    }
}csコピー

using System;
using System.Net.Http;
using System.Collections.Generic;
using System.Threading.Tasks;
using System.Text;
using Microsoft.AspNetCore.Components.WebAssembly.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using IgniteUI.Blazor.Controls; // for registering Ignite UI modules

namespace Infragistics.Samples
{
    public class Program
    {
        public static async Task Main(string[] args)
        {
            var builder = WebAssemblyHostBuilder.CreateDefault(args);
            builder.RootComponents.Add<App>("app");
            builder.Services.AddScoped(sp => new HttpClient { BaseAddress = new Uri(builder.HostEnvironment.BaseAddress) });
            // registering Ignite UI modules
            builder.Services.AddIgniteUIBlazor(
                typeof(IgbInputModule),
                typeof(IgbPaginatorModule),
                typeof(IgbTreeGridModule)
            );
            await builder.Build().RunAsync();
        }
    }
}csコピー

@using IgniteUI.Blazor.Controls

<div class="container vertical ig-typography">
    <div class="container vertical fill">
        <IgbTreeGrid
        AutoGenerate="false"
        Name="treeGrid"
        @ref="treeGrid"
        Id="treeGrid"
        Data="EmployeesNestedTreeData"
        PrimaryKey="ID"
        AllowFiltering="true"
        ForeignKey="ParentID">
            <IgbPaginator
            PerPage="10">
            </IgbPaginator>

            <IgbColumn
            Field="Name"
            DataType="GridColumnDataType.String"
            Editable="true"
            HasSummary="true">
            </IgbColumn>

            <IgbColumn
            Field="Title"
            DataType="GridColumnDataType.String"
            Editable="true"
            HasSummary="true">
            </IgbColumn>

            <IgbColumn
            Field="Age"
            DataType="GridColumnDataType.Number"
            Editable="true"
            HasSummary="true">
            </IgbColumn>

            <IgbColumn
            Field="HireDate"
            DataType="GridColumnDataType.Date"
            Editable="true"
            HasSummary="true">
            </IgbColumn>

            <IgbColumn
            Field="OnPTO"
            DataType="GridColumnDataType.Boolean"
            Editable="true"
            HasSummary="true"
            Width="130px">
            </IgbColumn>

        </IgbTreeGrid>

    </div>
</div>

@code {
    

    protected override async Task OnAfterRenderAsync(bool firstRender)
    {
        var treeGrid = this.treeGrid;

    }

    private IgbTreeGrid treeGrid;

    private EmployeesNestedTreeData _employeesNestedTreeData = null;
    public EmployeesNestedTreeData EmployeesNestedTreeData
    {
        get
        {
            if (_employeesNestedTreeData == null)
            {
                _employeesNestedTreeData = new EmployeesNestedTreeData();
            }
            return _employeesNestedTreeData;
        }
    }

}razorコピー

/*
CSS styles are loaded from the shared CSS file located at:
https://static.infragistics.com/xplatform/css/samples/
*/
cssコピー

Like this sample? Get access to our complete Ignite UI for Blazor toolkit and start building your own apps in minutes. Download it for free.

Edición de celdas

Editing through UI

Puede ingresar al modo de edición para una celda específica, cuando una celda editable está enfocada de una de las siguientes maneras:

• al hacer doble clic;
• con un solo clic: un solo clic ingresará al modo de edición solo si la celda seleccionada previamente estaba en modo de edición y la celda actualmente seleccionada es editable. Si la celda previamente seleccionada no estaba en modo de edición, un solo clic seleccionará la celda sin ingresar al modo de edición;
• en la tecla presione Enter;
• en la tecla presione F2;

Puede salir del modo de edición sin realizar los cambios de una de las siguientes maneras:

• en la tecla presione Escape;
• cuando realiza operaciones de clasificación, filtrado, búsqueda y ocultación;

Puede salir del modo de edición y confirmar los cambios de una de las siguientes maneras:

• en la tecla presione Enter;
• en la tecla presione F2;
• en la tecla presione Tab;
• con un solo clic en otra celda: cuando haga clic en otra celda en IgbTreeGrid, se enviarán sus cambios.
• operaciones como paginación, cambio de tamaño, anclar o mover saldrán del modo de edición y se enviarán los cambios.

The cell remains in edit mode when you scroll vertically or horizontally or click outside the IgbTreeGrid. This is valid for both cell editing and row editing.

Editing through API

También puede modificar el valor de la celda a través de la API IgbTreeGrid, pero solo si está definida la clave principal:

@code {
    this.treeGrid.UpdateCell(newValue, rowID, 'ReorderLevel');
}
razor

Otra forma de actualizar la celda es directamente a través del Update método de Cell:

@code {
    private UpdateCell() {
        IgbCell cell = this.treeGrid.GetCellByColumn(rowIndex, "Age");
        cell.Update(9999);
    }
}
razor

Cell Editing Templates

Puede ver y obtener más información sobre las plantillas de edición de celdas predeterminadas en el tema de edición general.

Si desea proporcionar una plantilla personalizada que se aplicará a una celda, puede pasar dicha plantilla a la celda misma o a su encabezado. Primero cree la columna como lo haría normalmente:

<IgbColumn
    Field="Category"
    DataType="GridColumnDataType.String"
    InlineEditorTemplateScript="WebGridCellEditCellTemplate"
    Editable="true"
    Name="column1"
    @ref="column1">
</IgbColumn>
razor

y pasa la plantilla:

*** In JavaScript ***

igRegisterScript("WebGridCellEditCellTemplate", (ctx) => {
    let cellValues = [];
    let uniqueValues = [];
    for(const i of ctx.cell.grid.data){
        const field = ctx.cell.column.field;
        if(uniqueValues.indexOf(i[field]) === -1 )
        {
            cellValues.push(html`<igc-select-item value=${i[field]}>${(i[field])}</igc-select-item>`);
            uniqueValues.push(i[field]);
        }
    }
    return html`<div>
    <igc-select position-strategy="fixed" @igcChange=${ e => ctx.cell.editValue = e.detail.value}>
          ${cellValues}
    </igc-select>
</div>`;
}, false);
razor

Puede encontrar una muestra funcional de lo anterior aquí para mayor referencia:

EXAMPLE

MODULES

DATA

RAZOR

JS

CSS

using System;
using System.Net.Http;
using System.Collections.Generic;
using System.Threading.Tasks;
using System.Text;
using Microsoft.AspNetCore.Components.WebAssembly.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using IgniteUI.Blazor.Controls; // for registering Ignite UI modules

namespace Infragistics.Samples
{
    public class Program
    {
        public static async Task Main(string[] args)
        {
            var builder = WebAssemblyHostBuilder.CreateDefault(args);
            builder.RootComponents.Add<App>("app");
            builder.Services.AddScoped(sp => new HttpClient { BaseAddress = new Uri(builder.HostEnvironment.BaseAddress) });
            // registering Ignite UI modules
            builder.Services.AddIgniteUIBlazor(
                typeof(IgbInputModule),
                typeof(IgbTreeGridModule),
                typeof(IgbSelectModule)
            );
            await builder.Build().RunAsync();
        }
    }
}csコピー

using System;
using System.Collections.Generic;
public class RoleplayTreeGridDataItem
{
    public double ID { get; set; }
    public double ParentID { get; set; }
    public string Name { get; set; }
    public string Age { get; set; }
    public string Alignment { get; set; }
    public string Race { get; set; }
    public string Class { get; set; }
}

public class RoleplayTreeGridData
    : List<RoleplayTreeGridDataItem>
{
    public RoleplayTreeGridData()
    {
        this.Add(new RoleplayTreeGridDataItem()
        {
            ID = 1,
            ParentID = 8,
            Name = @"Stredo",
            Age = @"244",
            Alignment = @"💜 Lawful evil",
            Race = @"👩 Human",
            Class = @"🎻 Bard"
        });
        this.Add(new RoleplayTreeGridDataItem()
        {
            ID = 2,
            ParentID = 7,
            Name = @"Haluun",
            Age = @"40",
            Alignment = @"🤍 Unaligned",
            Race = @"🧒🏻 Hafling",
            Class = @"🙏🏻 Monk"
        });
        this.Add(new RoleplayTreeGridDataItem()
        {
            ID = 3,
            ParentID = 9,
            Name = @"Ivellios",
            Age = @"244",
            Alignment = @"🧡 Chaotic good",
            Race = @"👩 Human",
            Class = @"⚔️ Paladin"
        });
        this.Add(new RoleplayTreeGridDataItem()
        {
            ID = 4,
            ParentID = -1,
            Name = @"Tes",
            Age = @"35",
            Alignment = @"💜 Lawful evil",
            Race = @"🎭 Changeling",
            Class = @"🧙‍♂️ Wizard"
        });
        this.Add(new RoleplayTreeGridDataItem()
        {
            ID = 5,
            ParentID = 3,
            Name = @"Kalla",
            Age = @"47",
            Alignment = @"🤎 Neutral evil",
            Race = @"🤖 Warforged",
            Class = @"🦹‍♂️ Sorcerer"
        });
        this.Add(new RoleplayTreeGridDataItem()
        {
            ID = 6,
            ParentID = 2,
            Name = @"Halimath Dundragon",
            Age = @"149",
            Alignment = @"🤍 Unaligned",
            Race = @"🐲 Dragonborn",
            Class = @"⚔️ Paladin"
        });
        this.Add(new RoleplayTreeGridDataItem()
        {
            ID = 7,
            ParentID = 5,
            Name = @"Iriphawa",
            Age = @"39",
            Alignment = @"💛 Lawful neutral",
            Race = @"🧝🏻‍♂️ Half-Elf",
            Class = @"🏹 Ranger"
        });
        this.Add(new RoleplayTreeGridDataItem()
        {
            ID = 8,
            ParentID = 6,
            Name = @"Quaf",
            Age = @"25",
            Alignment = @"💚 Neutral",
            Race = @"👩 Human",
            Class = @"🥊 Fighter"
        });
        this.Add(new RoleplayTreeGridDataItem()
        {
            ID = 9,
            ParentID = 10,
            Name = @"Rat Scratch",
            Age = @"15",
            Alignment = @"🤎 Neutral evil",
            Race = @"🐡 Locathah",
            Class = @"🍁 Druid"
        });
        this.Add(new RoleplayTreeGridDataItem()
        {
            ID = 10,
            ParentID = 4,
            Name = @"Slicer",
            Age = @"57",
            Alignment = @"💜 Lawful evil",
            Race = @"🐡 Locathah",
            Class = @"💪 Barbarian"
        });
        this.Add(new RoleplayTreeGridDataItem()
        {
            ID = 11,
            ParentID = 7,
            Name = @"Nereones Ahlorsath",
            Age = @"95",
            Alignment = @"💛 Lawful neutral",
            Race = @"👩 Human",
            Class = @"🥊 Fighter"
        });
        this.Add(new RoleplayTreeGridDataItem()
        {
            ID = 12,
            ParentID = 9,
            Name = @"Nalvarti Stonecutter",
            Age = @"118",
            Alignment = @"❤️ Neutral good",
            Race = @"🧝‍♀️ Elf",
            Class = @"❤️‍ Cleric"
        });
        this.Add(new RoleplayTreeGridDataItem()
        {
            ID = 13,
            ParentID = 1,
            Name = @"Errk",
            Age = @"22",
            Alignment = @"🤎 Neutral evil",
            Race = @"🧝🏻‍♂️ Half-Elf",
            Class = @"🎻 Bard"
        });
        this.Add(new RoleplayTreeGridDataItem()
        {
            ID = 14,
            ParentID = 5,
            Name = @"Seven Thundercloud",
            Age = @"43",
            Alignment = @"💖 Lawful good",
            Race = @"🐡 Locathah",
            Class = @"⚔️ Paladin"
        });
        this.Add(new RoleplayTreeGridDataItem()
        {
            ID = 15,
            ParentID = 10,
            Name = @"Navarra Chergoba",
            Age = @"16",
            Alignment = @"💜 Lawful evil",
            Race = @"🐯 Tabaxi",
            Class = @"❤️‍ Cleric"
        });
        this.Add(new RoleplayTreeGridDataItem()
        {
            ID = 16,
            ParentID = 4,
            Name = @"Sail Snap",
            Age = @"56",
            Alignment = @"💖 Lawful good",
            Race = @"🌳 Arboren",
            Class = @"💪 Barbarian"
        });
        this.Add(new RoleplayTreeGridDataItem()
        {
            ID = 17,
            ParentID = 8,
            Name = @"Urreek",
            Age = @"17",
            Alignment = @"💜 Lawful evil",
            Race = @"🧝🏻‍♂️ Half-Elf",
            Class = @"🐉 Warlock"
        });
        this.Add(new RoleplayTreeGridDataItem()
        {
            ID = 18,
            ParentID = 6,
            Name = @"Morkral Firetamer",
            Age = @"24",
            Alignment = @"🤎 Neutral evil",
            Race = @"🐲 Dragonborn",
            Class = @"🙏🏻 Monk"
        });
        this.Add(new RoleplayTreeGridDataItem()
        {
            ID = 19,
            ParentID = 2,
            Name = @"Vithka",
            Age = @"53",
            Alignment = @"💜 Lawful evil",
            Race = @"🐡 Locathah",
            Class = @"⚔️ Paladin"
        });
        this.Add(new RoleplayTreeGridDataItem()
        {
            ID = 20,
            ParentID = 7,
            Name = @"Sandrue Avhoste",
            Age = @"19",
            Alignment = @"💙 Chaotic Neutral",
            Race = @"🐲 Dragonborn",
            Class = @"🗡️ Rogue"
        });
        this.Add(new RoleplayTreeGridDataItem()
        {
            ID = 21,
            ParentID = 8,
            Name = @"Hapah Moq",
            Age = @"34",
            Alignment = @"💜 Lawful evil",
            Race = @"🎅🏽 Dwarf",
            Class = @"🎻 Bard"
        });
        this.Add(new RoleplayTreeGridDataItem()
        {
            ID = 22,
            ParentID = 5,
            Name = @"Kothar",
            Age = @"55",
            Alignment = @"🤍 Unaligned",
            Race = @"🧝🏻‍♂️ Half-Elf",
            Class = @"🐉 Warlock"
        });
        this.Add(new RoleplayTreeGridDataItem()
        {
            ID = 23,
            ParentID = 1,
            Name = @"Senen",
            Age = @"40",
            Alignment = @"💜 Lawful evil",
            Race = @"🧒🏻 Hafling",
            Class = @"🥊 Fighter"
        });
    }
}csコピー

@using IgniteUI.Blazor.Controls

@inject IJSRuntime JS

<div class="container vertical ig-typography">
    <div class="container vertical fill">
        <IgbTreeGrid
        AutoGenerate="false"
        Name="treeGrid1"
        @ref="treeGrid1"
        Id="treeGrid1"
        Data="RoleplayTreeGridData"
        PrimaryKey="ID"
        ForeignKey="ParentID">
            <IgbColumn
            Field="Name"
            Header="Character Name"
            DataType="GridColumnDataType.String">
            </IgbColumn>

            <IgbColumn
            Field="Race"
            Header="Race"
            DataType="GridColumnDataType.String"
            Editable="true"
            InlineEditorTemplateScript="WebTreeGridCellEditCellTemplate"
            Name="column1"
            @ref="column1">
            </IgbColumn>

            <IgbColumn
            Field="Class"
            Header="Class"
            InlineEditorTemplateScript="WebTreeGridCellEditCellTemplate"
            DataType="GridColumnDataType.String"
            Editable="true"
            Name="column2"
            @ref="column2">
            </IgbColumn>

            <IgbColumn
            Field="Age"
            Header="Age"
            DataType="GridColumnDataType.String"
            Editable="true">
            </IgbColumn>

            <IgbColumn
            Field="Alignment"
            Header="Alignment"
            InlineEditorTemplateScript="WebTreeGridCellEditCellTemplate"
            DataType="GridColumnDataType.String"
            Editable="true"
            Name="column3"
            @ref="column3">
            </IgbColumn>

        </IgbTreeGrid>

    </div>
</div>

@code {
    

    protected override async Task OnAfterRenderAsync(bool firstRender)
    {
        var treeGrid1 = this.treeGrid1;
        var column1 = this.column1;
        var column2 = this.column2;
        var column3 = this.column3;

    }

    private IgbTreeGrid treeGrid1;
    private IgbColumn column1;
    private IgbColumn column2;
    private IgbColumn column3;

    private RoleplayTreeGridData _roleplayTreeGridData = null;
    public RoleplayTreeGridData RoleplayTreeGridData
    {
        get
        {
            if (_roleplayTreeGridData == null)
            {
                _roleplayTreeGridData = new RoleplayTreeGridData();
            }
            return _roleplayTreeGridData;
        }
    }

}razorコピー

igRegisterScript("WebTreeGridCellEditCellTemplate", (ctx) => {
    var html = window.igTemplating.html;
    let cellValues = [];
    let uniqueValues = [];
    for (const i of ctx.cell.grid.data) {
        const field = ctx.cell.column.field;
        if (uniqueValues.indexOf(i[field]) === -1) {
            if (ctx.cell.value == i[field]) {
                cellValues.push(html`<igc-select-item selected value=${i[field]}>${(i[field])}</igc-select-item>`);
            } else cellValues.push(html`<igc-select-item value=${i[field]}>${(i[field])}</igc-select-item>`);
            uniqueValues.push(i[field]);
        }
    }
    return html`
    <igc-select style="width:100%; height:100%; --ig-size: var(--ig-size-large);" @igcChange=${e => ctx.cell.editValue = e.detail.value}>
          ${cellValues}
    </igc-select>
`
}, false);

jsコピー

/*
CSS styles are loaded from the shared CSS file located at:
https://static.infragistics.com/xplatform/css/samples/
*/
cssコピー

CRUD operations

Please keep in mind that when you perform some CRUD operation all of the applied pipes like filtering, sorting and grouping will be re-applied and your view will be automatically updated.

The IgbTreeGrid provides a straightforward API for basic CRUD operations.

Adding a new record

El componente IgbTreeGrid expone el método AddRow que agregará los datos proporcionados a la propia fuente de datos.

//Assuming we have a `GetNewRecord` method returning the new row data.
const record = this.GetNewRecord();
this.TreeGridRef.AddRow(record);
razor

Updating data in the Tree Grid

La actualización de datos en Tree Grid se logra mediante los métodos UpdateRow y UpdateCell, pero solo si se define la clave primaria para la cuadrícula. También puede actualizar directamente un valor de celda y/o fila a través de sus respectivos métodos de actualización.

@code {
    // Updating the whole row
    this.treeGrid.UpdateRow(newData, this.selectedCell.cellID.rowID);

    // Just a particular cell through the Tree Grid API
    this.treeGrid.UpdateCell(newData, this.selectedCell.cellID.rowID, this.selectedCell.column.field);

    // Directly using the cell `update` method
    this.selectedCell.Update(newData);

    // Directly using the row `update` method
    IgbRowType row = this.treeGrid.GetRowByKey(rowID);
    row.Update(newData);
}
razor

Deleting data from the Tree Grid

Tenga en cuenta que el método DeleteRow eliminará la fila especificada solo si se define una PrimaryKey.

@code {
    // Delete row through Tree Grid API
    this.treeGrid.DeleteRow(this.selectedCell.cellID.rowID);
    // Delete row through row object
    IgbRowType row = this.treeGrid.GetRowByIndex(rowIndex);
    row.Del();
}
razor

Cell Validation on Edit Event

Usando los eventos de edición de IgbTreeGrid, podemos alterar la forma en que el usuario interactúa con IgbTreeGrid.

En este ejemplo, validaremos una celda según los datos ingresados en ella vinculándola al evento CellEdit. Si el nuevo valor de la celda no cumple con nuestros criterios predefinidos, evitaremos que llegue a la fuente de datos cancelando el evento.

Lo primero que tenemos que hacer es enlazar al evento de la cuadrícula:

<IgbTreeGrid CellEditScript="HandleCellEdit" />
razor

​CellEdit se emite cada vez que el valor de cualquier celda está a punto de confirmarse. En nuestra definición de CellEdit, debemos asegurarnos de verificar nuestra columna específica antes de realizar cualquier acción:

*** In JavaScript ***
igRegisterScript("HandleCellEdit", (ev) => {
    const column = event.detail.column;

	if (column.field === 'Age') {
		if (event.detail.newValue < 18) {
			event.detail.cancel = true;
			alert('Employees must be at least 18 years old!');
		}
	} else if (column.field === 'HireDate') {
		if (event.detail.newValue > new Date().getTime()) {
			event.detail.cancel = true;
			alert('The employee hire date must be in the past!');
		}
	}
}, false);
razor

Si el valor introducido en una celda de la columna Edad es inferior a 18 años o el valor de la columna HireDate está en el futuro, la edición se cancelará y el usuario recibirá una alerta de la cancelación.

El resultado de la validación anterior aplicada a nuestro IgbTreeGrid se puede ver en la siguiente demostración:

EXAMPLE

DATA

MODULES

RAZOR

JS

CSS

using System;
using System.Collections.Generic;
public class EmployeesNestedTreeDataItem
{
    public double Age { get; set; }
    public string HireDate { get; set; }
    public double ID { get; set; }
    public string Name { get; set; }
    public string Phone { get; set; }
    public bool OnPTO { get; set; }
    public double ParentID { get; set; }
    public string Title { get; set; }
}

public class EmployeesNestedTreeData
    : List<EmployeesNestedTreeDataItem>
{
    public EmployeesNestedTreeData()
    {
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 55,
            HireDate = @"2008-03-20",
            ID = 1,
            Name = @"Johnathan Winchester",
            Phone = @"0251-031259",
            OnPTO = false,
            ParentID = -1,
            Title = @"Development Manager"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 42,
            HireDate = @"2014-01-22",
            ID = 4,
            Name = @"Ana Sanders",
            Phone = @"(21) 555-0091",
            OnPTO = true,
            ParentID = -1,
            Title = @"CEO"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 49,
            HireDate = @"2014-01-22",
            ID = 18,
            Name = @"Victoria Lincoln",
            Phone = @"(071) 23 67 22 20",
            OnPTO = true,
            ParentID = -1,
            Title = @"Accounting Manager"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 61,
            HireDate = @"2010-01-01",
            ID = 10,
            Name = @"Yang Wang",
            Phone = @"(21) 555-0091",
            OnPTO = false,
            ParentID = -1,
            Title = @"Localization Manager"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 43,
            HireDate = @"2011-06-03",
            ID = 3,
            Name = @"Michael Burke",
            Phone = @"0452-076545",
            OnPTO = true,
            ParentID = 1,
            Title = @"Senior Software Developer"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 29,
            HireDate = @"2009-06-19",
            ID = 2,
            Name = @"Thomas Anderson",
            Phone = @"(14) 555-8122",
            OnPTO = false,
            ParentID = 1,
            Title = @"Senior Software Developer"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 31,
            HireDate = @"2014-08-18",
            ID = 11,
            Name = @"Monica Reyes",
            Phone = @"7675-3425",
            OnPTO = false,
            ParentID = 1,
            Title = @"Software Development Team Lead"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 35,
            HireDate = @"2015-09-17",
            ID = 6,
            Name = @"Roland Mendel",
            Phone = @"(505) 555-5939",
            OnPTO = false,
            ParentID = 11,
            Title = @"Senior Software Developer"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 44,
            HireDate = @"2009-10-11",
            ID = 12,
            Name = @"Sven Cooper",
            Phone = @"0695-34 67 21",
            OnPTO = true,
            ParentID = 11,
            Title = @"Senior Software Developer"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 44,
            HireDate = @"2014-04-04",
            ID = 14,
            Name = @"Laurence Johnson",
            Phone = @"981-443655",
            OnPTO = false,
            ParentID = 4,
            Title = @"Director"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 25,
            HireDate = @"2017-11-09",
            ID = 5,
            Name = @"Elizabeth Richards",
            Phone = @"(2) 283-2951",
            OnPTO = true,
            ParentID = 4,
            Title = @"Vice President"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 39,
            HireDate = @"2010-03-22",
            ID = 13,
            Name = @"Trevor Ashworth",
            Phone = @"981-443655",
            OnPTO = true,
            ParentID = 5,
            Title = @"Director"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 44,
            HireDate = @"2014-04-04",
            ID = 17,
            Name = @"Antonio Moreno",
            Phone = @"(505) 555-5939",
            OnPTO = false,
            ParentID = 18,
            Title = @"Senior Accountant"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 50,
            HireDate = @"2007-11-18",
            ID = 7,
            Name = @"Pedro Rodriguez",
            Phone = @"035-640230",
            OnPTO = false,
            ParentID = 10,
            Title = @"Senior Localization Developer"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 27,
            HireDate = @"2016-02-19",
            ID = 8,
            Name = @"Casey Harper",
            Phone = @"0342-023176",
            OnPTO = true,
            ParentID = 10,
            Title = @"Senior Localization"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 25,
            HireDate = @"2017-11-09",
            ID = 15,
            Name = @"Patricia Simpson",
            Phone = @"069-0245984",
            OnPTO = false,
            ParentID = 7,
            Title = @"Localization Intern"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 39,
            HireDate = @"2010-03-22",
            ID = 9,
            Name = @"Francisco Chang",
            Phone = @"(91) 745 6200",
            OnPTO = false,
            ParentID = 7,
            Title = @"Localization Intern"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 25,
            HireDate = @"2018-03-18",
            ID = 16,
            Name = @"Peter Lewis",
            Phone = @"069-0245984",
            OnPTO = true,
            ParentID = 7,
            Title = @"Localization Intern"
        });
    }
}csコピー

using System;
using System.Net.Http;
using System.Collections.Generic;
using System.Threading.Tasks;
using System.Text;
using Microsoft.AspNetCore.Components.WebAssembly.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using IgniteUI.Blazor.Controls; // for registering Ignite UI modules

namespace Infragistics.Samples
{
    public class Program
    {
        public static async Task Main(string[] args)
        {
            var builder = WebAssemblyHostBuilder.CreateDefault(args);
            builder.RootComponents.Add<App>("app");
            builder.Services.AddScoped(sp => new HttpClient { BaseAddress = new Uri(builder.HostEnvironment.BaseAddress) });
            // registering Ignite UI modules
            builder.Services.AddIgniteUIBlazor(
                typeof(IgbInputModule),
                typeof(IgbTreeGridModule)
            );
            await builder.Build().RunAsync();
        }
    }
}csコピー

@using IgniteUI.Blazor.Controls

@inject IJSRuntime JS

<div class="container vertical ig-typography">
    <div class="container vertical fill">
        <IgbTreeGrid
        AutoGenerate="false"
        Name="treeGrid"
        @ref="treeGrid"
        Id="treeGrid"
        Data="EmployeesNestedTreeData"
        PrimaryKey="ID"
        CellEditScript="WebTreeGridCellEdit"
        ForeignKey="ParentID">
            <IgbColumn
            Field="Name"
            DataType="GridColumnDataType.String">
            </IgbColumn>

            <IgbColumn
            Field="Title"
            DataType="GridColumnDataType.String">
            </IgbColumn>

            <IgbColumn
            Field="Age"
            DataType="GridColumnDataType.Number"
            Editable="true">
            </IgbColumn>

            <IgbColumn
            Field="HireDate"
            DataType="GridColumnDataType.Date"
            Editable="true">
            </IgbColumn>

        </IgbTreeGrid>

    </div>
</div>

@code {
    

    protected override async Task OnAfterRenderAsync(bool firstRender)
    {
        var treeGrid = this.treeGrid;

    }

    private IgbTreeGrid treeGrid;

    private EmployeesNestedTreeData _employeesNestedTreeData = null;
    public EmployeesNestedTreeData EmployeesNestedTreeData
    {
        get
        {
            if (_employeesNestedTreeData == null)
            {
                _employeesNestedTreeData = new EmployeesNestedTreeData();
            }
            return _employeesNestedTreeData;
        }
    }

}razorコピー

igRegisterScript("WebTreeGridCellEdit", (event) => {
	const column = event.detail.column;
	if (column.field === 'Age') {
		if (event.detail.newValue < 18) {
			event.detail.cancel = true;
			alert('Employees must be at least 18 years old!');
		}
	} else if (column.field === 'HireDate') {
		if (event.detail.newValue > new Date().getTime()) {
			event.detail.cancel = true;
			alert('The employee hire date must be in the past!');
		}
	}
}, false);

jsコピー

/*
CSS styles are loaded from the shared CSS file located at:
https://static.infragistics.com/xplatform/css/samples/
*/
cssコピー

Styling

Además de los temas predefinidos, la cuadrícula se puede personalizar aún más configurando algunas de las propiedades CSS disponibles. En caso de que desee cambiar algunos de los colores, primero debe establecer una clase para la cuadrícula:

<IgbTreeGrid Class="treeGrid"></IgbTreeGrid>
razor

Luego configure las propiedades CSS relacionadas para esa clase:

.treeGrid {
    --ig-grid-edit-mode-color: orange;
    --ig-grid-cell-editing-background: lightblue;
}
css

Styling Example

EXAMPLE

DATA

MODULES

RAZOR

CSS

using System;
using System.Collections.Generic;
public class EmployeesNestedTreeDataItem
{
    public double Age { get; set; }
    public string HireDate { get; set; }
    public double ID { get; set; }
    public string Name { get; set; }
    public string Phone { get; set; }
    public bool OnPTO { get; set; }
    public double ParentID { get; set; }
    public string Title { get; set; }
}

public class EmployeesNestedTreeData
    : List<EmployeesNestedTreeDataItem>
{
    public EmployeesNestedTreeData()
    {
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 55,
            HireDate = @"2008-03-20",
            ID = 1,
            Name = @"Johnathan Winchester",
            Phone = @"0251-031259",
            OnPTO = false,
            ParentID = -1,
            Title = @"Development Manager"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 42,
            HireDate = @"2014-01-22",
            ID = 4,
            Name = @"Ana Sanders",
            Phone = @"(21) 555-0091",
            OnPTO = true,
            ParentID = -1,
            Title = @"CEO"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 49,
            HireDate = @"2014-01-22",
            ID = 18,
            Name = @"Victoria Lincoln",
            Phone = @"(071) 23 67 22 20",
            OnPTO = true,
            ParentID = -1,
            Title = @"Accounting Manager"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 61,
            HireDate = @"2010-01-01",
            ID = 10,
            Name = @"Yang Wang",
            Phone = @"(21) 555-0091",
            OnPTO = false,
            ParentID = -1,
            Title = @"Localization Manager"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 43,
            HireDate = @"2011-06-03",
            ID = 3,
            Name = @"Michael Burke",
            Phone = @"0452-076545",
            OnPTO = true,
            ParentID = 1,
            Title = @"Senior Software Developer"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 29,
            HireDate = @"2009-06-19",
            ID = 2,
            Name = @"Thomas Anderson",
            Phone = @"(14) 555-8122",
            OnPTO = false,
            ParentID = 1,
            Title = @"Senior Software Developer"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 31,
            HireDate = @"2014-08-18",
            ID = 11,
            Name = @"Monica Reyes",
            Phone = @"7675-3425",
            OnPTO = false,
            ParentID = 1,
            Title = @"Software Development Team Lead"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 35,
            HireDate = @"2015-09-17",
            ID = 6,
            Name = @"Roland Mendel",
            Phone = @"(505) 555-5939",
            OnPTO = false,
            ParentID = 11,
            Title = @"Senior Software Developer"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 44,
            HireDate = @"2009-10-11",
            ID = 12,
            Name = @"Sven Cooper",
            Phone = @"0695-34 67 21",
            OnPTO = true,
            ParentID = 11,
            Title = @"Senior Software Developer"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 44,
            HireDate = @"2014-04-04",
            ID = 14,
            Name = @"Laurence Johnson",
            Phone = @"981-443655",
            OnPTO = false,
            ParentID = 4,
            Title = @"Director"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 25,
            HireDate = @"2017-11-09",
            ID = 5,
            Name = @"Elizabeth Richards",
            Phone = @"(2) 283-2951",
            OnPTO = true,
            ParentID = 4,
            Title = @"Vice President"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 39,
            HireDate = @"2010-03-22",
            ID = 13,
            Name = @"Trevor Ashworth",
            Phone = @"981-443655",
            OnPTO = true,
            ParentID = 5,
            Title = @"Director"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 44,
            HireDate = @"2014-04-04",
            ID = 17,
            Name = @"Antonio Moreno",
            Phone = @"(505) 555-5939",
            OnPTO = false,
            ParentID = 18,
            Title = @"Senior Accountant"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 50,
            HireDate = @"2007-11-18",
            ID = 7,
            Name = @"Pedro Rodriguez",
            Phone = @"035-640230",
            OnPTO = false,
            ParentID = 10,
            Title = @"Senior Localization Developer"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 27,
            HireDate = @"2016-02-19",
            ID = 8,
            Name = @"Casey Harper",
            Phone = @"0342-023176",
            OnPTO = true,
            ParentID = 10,
            Title = @"Senior Localization"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 25,
            HireDate = @"2017-11-09",
            ID = 15,
            Name = @"Patricia Simpson",
            Phone = @"069-0245984",
            OnPTO = false,
            ParentID = 7,
            Title = @"Localization Intern"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 39,
            HireDate = @"2010-03-22",
            ID = 9,
            Name = @"Francisco Chang",
            Phone = @"(91) 745 6200",
            OnPTO = false,
            ParentID = 7,
            Title = @"Localization Intern"
        });
        this.Add(new EmployeesNestedTreeDataItem()
        {
            Age = 25,
            HireDate = @"2018-03-18",
            ID = 16,
            Name = @"Peter Lewis",
            Phone = @"069-0245984",
            OnPTO = true,
            ParentID = 7,
            Title = @"Localization Intern"
        });
    }
}csコピー

using System;
using System.Net.Http;
using System.Collections.Generic;
using System.Threading.Tasks;
using System.Text;
using Microsoft.AspNetCore.Components.WebAssembly.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using IgniteUI.Blazor.Controls; // for registering Ignite UI modules

namespace Infragistics.Samples
{
    public class Program
    {
        public static async Task Main(string[] args)
        {
            var builder = WebAssemblyHostBuilder.CreateDefault(args);
            builder.RootComponents.Add<App>("app");
            builder.Services.AddScoped(sp => new HttpClient { BaseAddress = new Uri(builder.HostEnvironment.BaseAddress) });
            // registering Ignite UI modules
            builder.Services.AddIgniteUIBlazor(
                typeof(IgbInputModule),
                typeof(IgbPaginatorModule),
                typeof(IgbTreeGridModule)
            );
            await builder.Build().RunAsync();
        }
    }
}csコピー

@using IgniteUI.Blazor.Controls

<style>
/*
CSS styles are loaded from the shared CSS file located at:
https://static.infragistics.com/xplatform/css/samples/
*/

#treeGrid {
    --cell-editing-background: #4567bb;
    --cell-active-border-color: #4567bb;
    --cell-edited-value-color: #fff;
}
</style>
<div class="container vertical ig-typography">
    <div class="container vertical fill">
        <IgbTreeGrid
        AutoGenerate="false"
        Name="treeGrid"
        @ref="treeGrid"
        Id="treeGrid"
        Data="EmployeesNestedTreeData"
        PrimaryKey="ID"
        AllowFiltering="true"
        ForeignKey="ParentID">
            <IgbPaginator
            PerPage="10">
            </IgbPaginator>

            <IgbColumn
            Field="Name"
            DataType="GridColumnDataType.String"
            Editable="true">
            </IgbColumn>

            <IgbColumn
            Field="Title"
            DataType="GridColumnDataType.String"
            Editable="true">
            </IgbColumn>

            <IgbColumn
            Field="Age"
            DataType="GridColumnDataType.Number"
            Editable="true">
            </IgbColumn>

            <IgbColumn
            Field="HireDate"
            DataType="GridColumnDataType.Date"
            Editable="true">
            </IgbColumn>

            <IgbColumn
            Field="OnPTO"
            DataType="GridColumnDataType.Boolean"
            Editable="true"
            Width="130px">
            </IgbColumn>

        </IgbTreeGrid>

    </div>
</div>

@code {
    

    protected override async Task OnAfterRenderAsync(bool firstRender)
    {
        var treeGrid = this.treeGrid;

    }

    private IgbTreeGrid treeGrid;

    private EmployeesNestedTreeData _employeesNestedTreeData = null;
    public EmployeesNestedTreeData EmployeesNestedTreeData
    {
        get
        {
            if (_employeesNestedTreeData == null)
            {
                _employeesNestedTreeData = new EmployeesNestedTreeData();
            }
            return _employeesNestedTreeData;
        }
    }

}razorコピー

/*
CSS styles are loaded from the shared CSS file located at:
https://static.infragistics.com/xplatform/css/samples/
*/

#treeGrid {
    --cell-editing-background: #4567bb;
    --cell-active-border-color: #4567bb;
    --cell-edited-value-color: #fff;
}

cssコピー

API References

• IgbTreeGrid

• IgbDatePicker

Additional Resources