Selección de celdas en la cuadrícula del árbol Blazor

La selección de celdas Ignite UI for Blazor en Blazor cuadrícula de árbol permite capacidades de selección de datos enriquecidos y ofrece una API potente en el IgbTreeGrid componente. La cuadrícula de árbol de Blazor admite tres modos de selección:

• Selección de celdas múltiples de cuadrícula de árbol
• Tree Grid Single Selection
• Cuadrícula de árbol Ninguna selección

Profundicemos en cada una de estas opciones.

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 Selection Example

El siguiente ejemplo demuestra los tres tipos de IgbTreeGrid 's selección de celda comportamiento. Utilice los botones a continuación para habilitar cada uno de los modos de selección disponibles. Se proporcionará una breve descripción de la interacción de cada botón a través de un cuadro de mensaje de snackbar.

EXAMPLE

DATA

MODULES

RAZOR

CSS

using System;
using System.Collections.Generic;
public class EmployeesFlatDataItem
{
    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 EmployeesFlatData
    : List<EmployeesFlatDataItem>
{
    public EmployeesFlatData()
    {
        this.Add(new EmployeesFlatDataItem()
        {
            Age = 55,
            HireDate = @"2008-03-20",
            ID = 1,
            Name = @"Johnathan Winchester",
            Phone = @"0251-031259",
            OnPTO = false,
            ParentID = -1,
            Title = @"Development Manager"
        });
        this.Add(new EmployeesFlatDataItem()
        {
            Age = 42,
            HireDate = @"2014-01-22",
            ID = 4,
            Name = @"Ana Sanders",
            Phone = @"(21) 555-0091",
            OnPTO = true,
            ParentID = -1,
            Title = @"CEO"
        });
        this.Add(new EmployeesFlatDataItem()
        {
            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 EmployeesFlatDataItem()
        {
            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 EmployeesFlatDataItem()
        {
            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 EmployeesFlatDataItem()
        {
            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 EmployeesFlatDataItem()
        {
            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 EmployeesFlatDataItem()
        {
            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 EmployeesFlatDataItem()
        {
            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 EmployeesFlatDataItem()
        {
            Age = 44,
            HireDate = @"2014-04-04",
            ID = 14,
            Name = @"Laurence Johnson",
            Phone = @"981-443655",
            OnPTO = false,
            ParentID = 4,
            Title = @"Director"
        });
        this.Add(new EmployeesFlatDataItem()
        {
            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 EmployeesFlatDataItem()
        {
            Age = 39,
            HireDate = @"2010-03-22",
            ID = 13,
            Name = @"Trevor Ashworth",
            Phone = @"981-443655",
            OnPTO = true,
            ParentID = 5,
            Title = @"Director"
        });
        this.Add(new EmployeesFlatDataItem()
        {
            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 EmployeesFlatDataItem()
        {
            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 EmployeesFlatDataItem()
        {
            Age = 27,
            HireDate = @"2016-02-19",
            ID = 8,
            Name = @"Casey Harper",
            Phone = @"0342-023176",
            OnPTO = true,
            ParentID = 10,
            Title = @"Senior Localization"
        });
        this.Add(new EmployeesFlatDataItem()
        {
            Age = 25,
            HireDate = @"2017-11-09",
            ID = 15,
            Name = @"Patricia Simpson",
            Phone = @"069-0245984",
            OnPTO = false,
            ParentID = 7,
            Title = @"Localization Intern"
        });
        this.Add(new EmployeesFlatDataItem()
        {
            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 EmployeesFlatDataItem()
        {
            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(IgbPropertyEditorPanelModule),
                typeof(IgbTreeGridModule)
            );
            await builder.Build().RunAsync();
        }
    }
}csコピー

@using IgniteUI.Blazor.Controls

<div class="container vertical ig-typography">
    <div class="options vertical">
        <IgbPropertyEditorPanel
        Name="PropertyEditor"
        @ref="propertyEditor"

        DescriptionType="WebTreeGrid"
        IsHorizontal="true"
        IsWrappingEnabled="true">
            <IgbPropertyEditorPropertyDescription
            PropertyPath="CellSelection"
            Name="CellSelectionEditor"
            @ref="cellSelectionEditor"
            Label="Cell Selection"
            ValueType="PropertyEditorValueType.EnumValue"
            DropDownNames="@(new string[] { "None", "Single", "Multiple" })"
            DropDownValues="@(new string[] { "None", "Single", "Multiple" })">
            </IgbPropertyEditorPropertyDescription>

        </IgbPropertyEditorPanel>

    </div>
    <div class="container vertical fill">
        <IgbTreeGrid
        AutoGenerate="false"
        Name="treeGrid"
        @ref="treeGrid"
        Id="treeGrid"
        Data="EmployeesFlatData"
        PrimaryKey="ID"
        ForeignKey="ParentID">
            <IgbColumn
            Field="ID">
            </IgbColumn>

            <IgbColumn
            Field="Name">
            </IgbColumn>

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

            <IgbColumn
            Field="Title">
            </IgbColumn>

            <IgbColumn
            Field="HireDate"
            Header="Hire Date"
            DataType="GridColumnDataType.Date">
            </IgbColumn>

            <IgbColumn
            Field="OnPTO"
            Header="On PTO"
            DataType="GridColumnDataType.Boolean">
            </IgbColumn>

        </IgbTreeGrid>

    </div>
</div>

@code {
    

    private Action BindElements { get; set; }

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

        this.BindElements = () => {
            propertyEditor.Target = this.treeGrid;
        };
        this.BindElements();

    }

    private IgbPropertyEditorPanel propertyEditor;
    private IgbPropertyEditorPropertyDescription cellSelectionEditor;
    private IgbTreeGrid treeGrid;

    private EmployeesFlatData _employeesFlatData = null;
    public EmployeesFlatData EmployeesFlatData
    {
        get
        {
            if (_employeesFlatData == null)
            {
                _employeesFlatData = new EmployeesFlatData();
            }
            return _employeesFlatData;
        }
    }

}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.

Selection Types

Tree Grid Multiple-Cell Selection

Cómo seleccionar celdas:

• ​Arrastrando con el mouse: se realizará la selección de datos rectangulares de las celdas.
• Al presionar la tecla Ctrl + arrastrar el mouse: se realizarán selecciones de rango múltiple. Cualquier otra selección de celda existente se mantendrá.
• Selección instantánea de varias celdas mediante la tecla Shift. Seleccione una sola celda y seleccione otra celda manteniendo presionada la tecla Mayús. Se seleccionará el rango de celdas entre las dos celdas. Tenga en cuenta que si se selecciona otra segunda celda mientras se mantiene presionada la tecla Mayús, el rango de selección de celdas se actualizará en función de la posición de la primera celda seleccionada (punto de partida).
• Selección de varias celdas del teclado utilizando las teclas de flecha mientras mantiene presionada la tecla Mayús. Se creará un rango de selección de varias celdas en función de la celda enfocada.
• Selección de varias celdas del teclado usando las teclas Ctrl + ↑ ↓ ← → y Ctrl + Inicio / Fin mientras mantiene presionada la tecla Shift. Se creará un rango de selección de varias celdas en función de la celda enfocada.
• Al hacer clic con la tecla izquierda del mouse mientras mantiene presionada la tecla Ctrl, se agregarán rangos de celdas individuales a la colección de celdas seleccionadas.
• La selección continua de múltiples celdas está disponible haciendo clic con el mouse y arrastrando.

Manifestación

EXAMPLE

DATA

MODULES

RAZOR

JS

CSS

using System;
using System.Collections.Generic;
public class EmployeesFlatDataItem
{
    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 EmployeesFlatData
    : List<EmployeesFlatDataItem>
{
    public EmployeesFlatData()
    {
        this.Add(new EmployeesFlatDataItem()
        {
            Age = 55,
            HireDate = @"2008-03-20",
            ID = 1,
            Name = @"Johnathan Winchester",
            Phone = @"0251-031259",
            OnPTO = false,
            ParentID = -1,
            Title = @"Development Manager"
        });
        this.Add(new EmployeesFlatDataItem()
        {
            Age = 42,
            HireDate = @"2014-01-22",
            ID = 4,
            Name = @"Ana Sanders",
            Phone = @"(21) 555-0091",
            OnPTO = true,
            ParentID = -1,
            Title = @"CEO"
        });
        this.Add(new EmployeesFlatDataItem()
        {
            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 EmployeesFlatDataItem()
        {
            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 EmployeesFlatDataItem()
        {
            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 EmployeesFlatDataItem()
        {
            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 EmployeesFlatDataItem()
        {
            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 EmployeesFlatDataItem()
        {
            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 EmployeesFlatDataItem()
        {
            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 EmployeesFlatDataItem()
        {
            Age = 44,
            HireDate = @"2014-04-04",
            ID = 14,
            Name = @"Laurence Johnson",
            Phone = @"981-443655",
            OnPTO = false,
            ParentID = 4,
            Title = @"Director"
        });
        this.Add(new EmployeesFlatDataItem()
        {
            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 EmployeesFlatDataItem()
        {
            Age = 39,
            HireDate = @"2010-03-22",
            ID = 13,
            Name = @"Trevor Ashworth",
            Phone = @"981-443655",
            OnPTO = true,
            ParentID = 5,
            Title = @"Director"
        });
        this.Add(new EmployeesFlatDataItem()
        {
            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 EmployeesFlatDataItem()
        {
            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 EmployeesFlatDataItem()
        {
            Age = 27,
            HireDate = @"2016-02-19",
            ID = 8,
            Name = @"Casey Harper",
            Phone = @"0342-023176",
            OnPTO = true,
            ParentID = 10,
            Title = @"Senior Localization"
        });
        this.Add(new EmployeesFlatDataItem()
        {
            Age = 25,
            HireDate = @"2017-11-09",
            ID = 15,
            Name = @"Patricia Simpson",
            Phone = @"069-0245984",
            OnPTO = false,
            ParentID = 7,
            Title = @"Localization Intern"
        });
        this.Add(new EmployeesFlatDataItem()
        {
            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 EmployeesFlatDataItem()
        {
            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(IgbGridModule),
                typeof(IgbTreeGridModule)
            );
            await builder.Build().RunAsync();
        }
    }
}csコピー

@using IgniteUI.Blazor.Controls

@inject IJSRuntime JS

<div class="container horizontal">
    <div class="container">
        <IgbTreeGrid AutoGenerate="false" Id="leftTreeGrid" Name="treeGrid" @ref="treeGridRef" Height="100%" Data="EmployeesFlatData"
                     PrimaryKey="ID" ForeignKey="ParentID" SelectionMode="GridSelectionMode.Multiple"
                     RangeSelectedScript="TreeGridRangeSelectionChanging">
            <IgbColumn Field="ID" DataType="GridColumnDataType.Number"></IgbColumn>
            <IgbColumn Field="Name" DataType="GridColumnDataType.String"></IgbColumn>
            <IgbColumn Field="Age" DataType="GridColumnDataType.Number"></IgbColumn>
            <IgbColumn Field="Title" DataType="GridColumnDataType.String"></IgbColumn>
            <IgbColumn Field="HireDate" DataType="GridColumnDataType.Date"></IgbColumn>
        </IgbTreeGrid>
    </div>
    <div class="container">
        <IgbGrid Id="rightGrid" Height="100%" Width="100%" AutoGenerate="false">
            <IgbColumn Field="ID" DataType="GridColumnDataType.Number"></IgbColumn>
            <IgbColumn Field="Name" DataType="GridColumnDataType.String"></IgbColumn>
            <IgbColumn Field="Age" DataType="GridColumnDataType.Number"></IgbColumn>
            <IgbColumn Field="Title" DataType="GridColumnDataType.String"></IgbColumn>
            <IgbColumn Field="HireDate" DataType="GridColumnDataType.Date"></IgbColumn>
        </IgbGrid>
    </div>
</div>

@code {
    
    private IgbTreeGrid treeGridRef;

    private EmployeesFlatData _employeesFlatData = null;
    public EmployeesFlatData EmployeesFlatData
    {
        get
        {
            if (_employeesFlatData == null)
            {
                _employeesFlatData = new EmployeesFlatData();
            }
            return _employeesFlatData;
        }
    }
}razorコピー

function TreeGridRangeSelectionChanging(o, e) {
    var leftTreeGrid = document.querySelector("#leftTreeGrid");
    var rightGrid = document.querySelector("#rightGrid");
    rightGrid.data = leftTreeGrid.getSelectedData();
}

igRegisterScript("TreeGridRangeSelectionChanging", TreeGridRangeSelectionChanging, 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

Tree Grid Single Selection

Cuando configura CellSelection en single, esto le permite tener solo una celda seleccionada en la cuadrícula a la vez. Además, el modo de arrastre del mouse no funcionará y, en lugar de seleccionar una celda, se realizará la selección de texto predeterminada.

Cuando se selecciona una sola celda, se emite el evento Selected, sin importar si el modo de selección es único o múltiple. En el modo de selección de varias celdas, cuando selecciona un rango de celdas, se emite el evento RangeSelected.

Cuadrícula de árbol Ninguna selección

Si desea deshabilitar la selección de celdas, puede configurar CellSelection en none. En este modo, cuando hace clic sobre la celda o intenta navegar con el teclado, la celda no se selecciona, solo se aplica el estilo de activación y se perderá cuando se desplace o haga clic sobre otro elemento de la página. La única forma de definir la selección es mediante los métodos API que se describen a continuación.

Keyboard Navigation Interactions

While Shift Key is Pressed

• Shift + ↑ para agregar la celda anterior a la selección actual.
• Shift + ↓ para agregar la siguiente celda a la selección actual.
• Shift + ← para agregar la celda izquierda a la selección actual.
• Shift + → para agregar la celda derecha a la selección actual.

While Ctrl + Shift Keys are Pressed

• Ctrl + Shift + ↑ para seleccionar todas las celdas encima de la celda enfocada en la columna.
• Ctrl + Shift + ↓ para seleccionar todas las celdas debajo de la celda enfocada en la columna.
• Ctrl + Shift + ← para seleccionar todas las celdas hasta el inicio de la fila.
• Ctrl + Shift + → para seleccionar todas las celdas hasta el final de la fila.
• Ctrl + Shift + Inicio para seleccionar todas las celdas desde la celda enfocada hasta la primera celda de la cuadrícula
• Ctrl + Shift + Fin para seleccionar todas las celdas desde la celda enfocada hasta la última celda de la cuadrícula

Continuous scroll is possible only within Grid's body.

Api Usage

A continuación se detallan los métodos que puede utilizar para seleccionar rangos, borrar la selección u obtener datos de celdas seleccionadas.

Select range

SelectRange- Seleccione un rango de celdas con la API. rowStart y rowEnd deben usar índices de fila y columnStart y columnEnd pueden usar índice de columna o valor de campo de datos de columna.

<IgbTreeGrid @ref=grid  CellSelection="GridSelectionMode.Multiple" AutoGenerate=true></<IgbTreeGrid>

@code {
    private IgbTreeGrid grid;

    private async void SetSelection()
    {        
        IgbGridSelectionRange selectionRange = new IgbGridSelectionRange();
        selectionRange.ColumnStart = 1;
        selectionRange.ColumnEnd = 1;
        selectionRange.RowStart = 2;
        selectionRange.RowEnd = 2;

        this.grid.SelectRange(new IgbGridSelectionRange[] {});
    }
}
razor

Clear cell selection

ClearCellSelection borrará la selección de celda actual.

@code {
    private async void ClearSelection()
    {
        await this.grid.ClearCellSelectionAsync();
    }
}
razor

Get Selected Data

GetSelectedData devolverá una matriz de los datos seleccionados en formato de diccionario. Ejemplos a continuación:

<IgbTreeGrid @ref=grid  CellSelection="GridSelectionMode.Multiple" AutoGenerate=true></<IgbTreeGrid>

@code {
    private IgbTreeGrid grid;

    private async void GetSelectedData()
    {
        object[] data = await this.grid.GetSelectedDataAsync(true, true);
    }
}
razor

Features Integration

La selección de varias celdas se basa en índices (selección de elementos DOM).

• Sorting: cuando se realiza la clasificación, la selección no se borrará. Dejará las celdas actualmente seleccionadas iguales mientras se ordenan de forma ascendente o descendente.
• Paging: al paginar, las celdas seleccionadas se borrarán. La selección no persistirá en todas las páginas.
• Filtering: cuando se realiza el filtrado, la selección no se borrará. Si se borra el filtrado, volverá a las celdas seleccionadas inicialmente.
• Resizing: al cambiar el tamaño de la columna, las celdas seleccionadas no se borrarán.
• Hiding: no borrará las celdas seleccionadas. Si la columna está oculta, se seleccionarán las celdas de la siguiente columna visible.
• Pinning: la celda seleccionada no se borrará. Lo mismo que esconderse
• GroupBy: en la agrupación de columnas, las celdas seleccionadas no se borrarán.

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>
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Luego configure las propiedades CSS relacionadas para esa clase:

.treeGrid {
    --ig-grid-cell-selected-text-color: #fff;
    --ig-grid-cell-active-border-color: #f2c43c;
    --ig-grid-cell-selected-background: #0062a3;
    --ig-grid-cell-editing-background: #0062a3;
}
css

Manifestación

EXAMPLE

DATA

MODULES

RAZOR

CSS

using System;
using System.Collections.Generic;
public class OrdersTreeDataItem
{
    public double ID { get; set; }
    public double ParentID { get; set; }
    public string Name { get; set; }
    public string Category { get; set; }
    public string OrderDate { get; set; }
    public double Units { get; set; }
    public double UnitPrice { get; set; }
    public double Price { get; set; }
    public bool Delivered { get; set; }
}

public class OrdersTreeData
    : List<OrdersTreeDataItem>
{
    public OrdersTreeData()
    {
        this.Add(new OrdersTreeDataItem()
        {
            ID = 1,
            ParentID = -1,
            Name = @"Order 1",
            Category = @"",
            OrderDate = @"2010-02-17",
            Units = 1844,
            UnitPrice = 3.73,
            Price = 6884.38,
            Delivered = true
        });
        this.Add(new OrdersTreeDataItem()
        {
            ID = 101,
            ParentID = 1,
            Name = @"Chocolate Chip Cookies",
            Category = @"Cookies",
            OrderDate = @"2010-02-17",
            Units = 834,
            UnitPrice = 3.59,
            Price = 2994.06,
            Delivered = true
        });
        this.Add(new OrdersTreeDataItem()
        {
            ID = 102,
            ParentID = 1,
            Name = @"Red Apples",
            Category = @"Fruit",
            OrderDate = @"2010-02-17",
            Units = 371,
            UnitPrice = 3.66,
            Price = 1357.86,
            Delivered = true
        });
        this.Add(new OrdersTreeDataItem()
        {
            ID = 103,
            ParentID = 1,
            Name = @"Butter",
            Category = @"Diary",
            OrderDate = @"2010-02-17",
            Units = 260,
            UnitPrice = 3.45,
            Price = 897,
            Delivered = true
        });
        this.Add(new OrdersTreeDataItem()
        {
            ID = 104,
            ParentID = 1,
            Name = @"Potato Chips",
            Category = @"Snack",
            OrderDate = @"2010-02-17",
            Units = 118,
            UnitPrice = 1.96,
            Price = 231.28,
            Delivered = true
        });
        this.Add(new OrdersTreeDataItem()
        {
            ID = 105,
            ParentID = 1,
            Name = @"Orange Juice",
            Category = @"Beverages",
            OrderDate = @"2010-02-17",
            Units = 261,
            UnitPrice = 5.38,
            Price = 1404.18,
            Delivered = true
        });
        this.Add(new OrdersTreeDataItem()
        {
            ID = 2,
            ParentID = -1,
            Name = @"Order 2",
            Category = @"",
            OrderDate = @"2022-05-27",
            Units = 1831,
            UnitPrice = 8.23,
            Price = 15062.77,
            Delivered = false
        });
        this.Add(new OrdersTreeDataItem()
        {
            ID = 201,
            ParentID = 2,
            Name = @"Frozen Shrimps",
            Category = @"Seafood",
            OrderDate = @"2022-05-27",
            Units = 120,
            UnitPrice = 20.45,
            Price = 2454,
            Delivered = false
        });
        this.Add(new OrdersTreeDataItem()
        {
            ID = 202,
            ParentID = 2,
            Name = @"Ice Tea",
            Category = @"Beverages",
            OrderDate = @"2022-05-27",
            Units = 840,
            UnitPrice = 7,
            Price = 5880,
            Delivered = false
        });
        this.Add(new OrdersTreeDataItem()
        {
            ID = 203,
            ParentID = 2,
            Name = @"Fresh Cheese",
            Category = @"Diary",
            OrderDate = @"2022-05-27",
            Units = 267,
            UnitPrice = 16.55,
            Price = 4418.85,
            Delivered = false
        });
        this.Add(new OrdersTreeDataItem()
        {
            ID = 204,
            ParentID = 2,
            Name = @"Carrots",
            Category = @"Vegetables",
            OrderDate = @"2022-05-27",
            Units = 360,
            UnitPrice = 2.77,
            Price = 997.2,
            Delivered = false
        });
        this.Add(new OrdersTreeDataItem()
        {
            ID = 205,
            ParentID = 2,
            Name = @"Apple Juice",
            Category = @"Beverages",
            OrderDate = @"2022-05-27",
            Units = 244,
            UnitPrice = 5.38,
            Price = 1312.72,
            Delivered = false
        });
        this.Add(new OrdersTreeDataItem()
        {
            ID = 3,
            ParentID = -1,
            Name = @"Order 3",
            Category = @"",
            OrderDate = @"2022-08-04",
            Units = 1972,
            UnitPrice = 3.47,
            Price = 6849.18,
            Delivered = true
        });
        this.Add(new OrdersTreeDataItem()
        {
            ID = 301,
            ParentID = 3,
            Name = @"Skimmed Milk 1L",
            Category = @"Diary",
            OrderDate = @"2022-08-04",
            Units = 1028,
            UnitPrice = 3.56,
            Price = 3659.68,
            Delivered = true
        });
        this.Add(new OrdersTreeDataItem()
        {
            ID = 302,
            ParentID = 3,
            Name = @"Bananas 5 Pack",
            Category = @"Fruit",
            OrderDate = @"2022-08-04",
            Units = 370,
            UnitPrice = 6.36,
            Price = 2353.2,
            Delivered = true
        });
        this.Add(new OrdersTreeDataItem()
        {
            ID = 303,
            ParentID = 3,
            Name = @"Cauliflower",
            Category = @"Vegetables",
            OrderDate = @"2022-08-04",
            Units = 283,
            UnitPrice = 0.95,
            Price = 268.85,
            Delivered = true
        });
        this.Add(new OrdersTreeDataItem()
        {
            ID = 304,
            ParentID = 3,
            Name = @"White Chocolate Cookies",
            Category = @"Cookies",
            OrderDate = @"2022-08-04",
            Units = 291,
            UnitPrice = 1.95,
            Price = 567.45,
            Delivered = true
        });
        this.Add(new OrdersTreeDataItem()
        {
            ID = 4,
            ParentID = -1,
            Name = @"Order 4",
            Category = @"",
            OrderDate = @"2023-01-04",
            Units = 1065,
            UnitPrice = 5.56,
            Price = 5923.5,
            Delivered = true
        });
        this.Add(new OrdersTreeDataItem()
        {
            ID = 401,
            ParentID = 4,
            Name = @"Mini Milk Chocolate Cookie Bites",
            Category = @"Cookies",
            OrderDate = @"2023-01-04",
            Units = 68,
            UnitPrice = 2.25,
            Price = 153,
            Delivered = true
        });
        this.Add(new OrdersTreeDataItem()
        {
            ID = 402,
            ParentID = 4,
            Name = @"Wild Salmon Fillets",
            Category = @"Seafood",
            OrderDate = @"2023-01-04",
            Units = 320,
            UnitPrice = 16.15,
            Price = 5168,
            Delivered = true
        });
        this.Add(new OrdersTreeDataItem()
        {
            ID = 403,
            ParentID = 4,
            Name = @"Diet Lemonade",
            Category = @"Beverages",
            OrderDate = @"2023-01-04",
            Units = 437,
            UnitPrice = 0.5,
            Price = 218.5,
            Delivered = true
        });
        this.Add(new OrdersTreeDataItem()
        {
            ID = 404,
            ParentID = 4,
            Name = @"Potatoes",
            Category = @"Vegetables",
            OrderDate = @"2023-01-04",
            Units = 240,
            UnitPrice = 1.6,
            Price = 384,
            Delivered = true
        });
    }
}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

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

#grid {
    --cell-selected-text-color: #FFFFFF;
    --cell-active-border-color: #f2c43c;
    --cell-selected-background: #0062a3;
}
</style>
<div class="container vertical ig-typography">
    <div class="container vertical fill">
        <IgbTreeGrid
        AutoGenerate="false"
        Name="grid"
        @ref="grid"
        Id="grid"
        Data="OrdersTreeData"
        PrimaryKey="ID"
        ForeignKey="ParentID">
            <IgbColumn
            Field="ID"
            Header="Order ID"
            DataType="GridColumnDataType.Number">
            </IgbColumn>

            <IgbColumn
            Field="Name"
            DataType="GridColumnDataType.String"
            Header="Order Product">
            </IgbColumn>

            <IgbColumn
            Field="Units"
            DataType="GridColumnDataType.Number">
            </IgbColumn>

            <IgbColumn
            Field="UnitPrice"
            Header="Unit Price"
            DataType="GridColumnDataType.Currency">
            </IgbColumn>

            <IgbColumn
            Field="Price"
            Header="Price"
            DataType="GridColumnDataType.Currency">
            </IgbColumn>

            <IgbColumn
            Field="OrderDate"
            Header="Order Date"
            DataType="GridColumnDataType.Date">
            </IgbColumn>

        </IgbTreeGrid>

    </div>
</div>

@code {
    

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

    }

    private IgbTreeGrid grid;

    private OrdersTreeData _ordersTreeData = null;
    public OrdersTreeData OrdersTreeData
    {
        get
        {
            if (_ordersTreeData == null)
            {
                _ordersTreeData = new OrdersTreeData();
            }
            return _ordersTreeData;
        }
    }

}razorコピー

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

#grid {
    --cell-selected-text-color: #FFFFFF;
    --cell-active-border-color: #f2c43c;
    --cell-selected-background: #0062a3;
}

cssコピー

API References

• IgbTreeGrid

Additional Resources

• Selección
• Selección de fila
• Filtración
• Clasificación
• resúmenes
• Columna en movimiento
• Fijación de columnas
• Cambio de tamaño de columna
• Virtualización y rendimiento

Nuestra comunidad es activa y siempre da la bienvenida a nuevas ideas.

• Ignite UI for Blazor Foros
• Ignite UI for Blazor GitHub