La persistencia del estado Ignite UI for Blazor en Blazor cuadrícula permite a los desarrolladores guardar y restaurar fácilmente el estado de la cuadrícula. Cuando se IgbGridState aplica en el Blazor IgbGrid, expone los métodos y ApplyStateFromStringAsync que los desarrolladores pueden usar para lograr la GetStateAsStringAsync persistencia de estado en cualquier escenario.
IgbGridState permite guardar y restaurar el estado de las siguientes características:
Clasificación
Filtración
Filtrado avanzado
Paginación
CellSelection
RowSelection
ColumnSelection
RowPinning
Expansión
GroupBy
Columns
Multi column headers
Orden de columnas
Column properties defined by the IColumnState interface.
Uso
Devuelve GetStateAsStringAsync una cadena JSON serializada, por lo que los desarrolladores pueden tomarla y guardarla en cualquier almacenamiento de datos (base de datos, nube, navegador localStorage, etc.).
El desarrollador puede optar por obtener solo el estado de una determinada característica o características, pasando una matriz con nombres de características como argumento. La matriz vacía dará como resultado el uso de las opciones de estado predeterminadas.
<IgbGrid><IgbGridState @ref="gridState"></IgbGridState></IgbGrid>@code {// get all features` state in a serialized JSON stringstring stateString = gridState.GetStateAsStringAsync(newstring[0]);
// get the sorting and filtering expressionsstring sortingFilteringStates = gridState.GetStateAsStringAsync(newstring[] { "sorting", "filtering" });
}razor
ApplyStateFromStringAsync- El método acepta una cadena JSON serializada como argumento y restaurará el estado de cada característica que se encuentre en la cadena JSON o en las características especificadas como segundo argumento.
gridState.ApplyStateFromStringAsync(gridStateString, new string[0]);
gridState.ApplyStateFromStringAsync(sortingFilteringStates, new string[0])
razor
El Options objeto implementa la IgbGridStateOptions interfaz, es decir, para cada clave, que es el nombre de una determinada característica, existe el valor booleano que indica si se realizará un seguimiento del estado de esta característica. GetStateAsStringAsync Los métodos no pondrán el estado de estas características en el valor devuelto y ApplyStateFromStringAsync los métodos no restaurarán el estado de ellas.
Las API de punto único fáciles de usar permiten lograr una funcionalidad de persistencia de estado completa en solo unas pocas líneas de código. Copie y pegue el código desde abajo: guardará el estado de la cuadrícula en el objeto del navegador LocalStorage cada vez que el usuario abandone la página actual. Cada vez que el usuario regrese a la página principal, se restaurará el estado de la cuadrícula. Ya no es necesario configurar esas complejas expresiones avanzadas de filtrado y ordenación cada vez para obtener los datos que desea: hágalo una vez y haga que el código de abajo haga el resto por sus usuarios:
using System;
using System.Collections.Generic;
publicclassCustomersDataItem
{
publicstring ID { get; set; }
publicstring Company { get; set; }
publicstring ContactName { get; set; }
publicstring ContactTitle { get; set; }
publicstring Address { get; set; }
publicstring City { get; set; }
publicstring Region { get; set; }
publicdouble PostalCode { get; set; }
publicstring Country { get; set; }
publicstring Phone { get; set; }
publicstring Fax { get; set; }
}
publicclassCustomersData
: List<CustomersDataItem>
{
publicCustomersData()
{
this.Add(new CustomersDataItem()
{
ID = @"ALFKI",
Company = @"Alfreds Futterkiste",
ContactName = @"Maria Anders",
ContactTitle = @"Sales Representative",
Address = @"Obere Str. 57",
City = @"Berlin",
Region = @"East",
PostalCode = 12209,
Country = @"Germany",
Phone = @"030-0074321",
Fax = @"030-0076545"
});
this.Add(new CustomersDataItem()
{
ID = @"ANATR",
Company = @"Ana Trujillo Emparedados y helados",
ContactName = @"Ana Trujillo",
ContactTitle = @"Owner",
Address = @"Avda. de la Constitución 2222",
City = @"México D.F.",
Region = @"South",
PostalCode = 5021,
Country = @"Mexico",
Phone = @"(5) 555-4729",
Fax = @"(5) 555-3745"
});
this.Add(new CustomersDataItem()
{
ID = @"ANTON",
Company = @"Antonio Moreno Taquería",
ContactName = @"Antonio Moreno",
ContactTitle = @"Owner",
Address = @"Mataderos 2312",
City = @"México D.F.",
Region = @"South",
PostalCode = 5023,
Country = @"Mexico",
Phone = @"(5) 555-3932",
Fax = @"(5) 555-3745"
});
this.Add(new CustomersDataItem()
{
ID = @"AROUT",
Company = @"Around the Horn",
ContactName = @"Thomas Hardy",
ContactTitle = @"Sales Representative",
Address = @"120 Hanover Sq.",
City = @"London",
Region = @"East",
PostalCode = 22000,
Country = @"UK",
Phone = @"(171) 555-7788",
Fax = @"(171) 555-6750"
});
this.Add(new CustomersDataItem()
{
ID = @"BERGS",
Company = @"Berglunds snabbköp",
ContactName = @"Christina Berglund",
ContactTitle = @"Order Administrator",
Address = @"Berguvsvägen 8",
City = @"Luleå",
Region = @"South",
PostalCode = 17000,
Country = @"Sweden",
Phone = @"0921-12 34 65",
Fax = @"0921-12 34 67"
});
this.Add(new CustomersDataItem()
{
ID = @"BLAUS",
Company = @"Blauer See Delikatessen",
ContactName = @"Hanna Moos",
ContactTitle = @"Sales Representative",
Address = @"Forsterstr. 57",
City = @"Mannheim",
Region = @"East",
PostalCode = 68306,
Country = @"Germany",
Phone = @"0621-08460",
Fax = @"0621-08924"
});
this.Add(new CustomersDataItem()
{
ID = @"BLONP",
Company = @"Blondesddsl père et fils",
ContactName = @"Frédérique Citeaux",
ContactTitle = @"Marketing Manager",
Address = @"24, place Kléber",
City = @"Strasbourg",
Region = @"East",
PostalCode = 67000,
Country = @"France",
Phone = @"88.60.15.31",
Fax = @"88.60.15.32"
});
this.Add(new CustomersDataItem()
{
ID = @"BOLID",
Company = @"Bólido Comidas preparadas",
ContactName = @"Martín Sommer",
ContactTitle = @"Owner",
Address = @"C/ Araquil, 67",
City = @"Madrid",
Region = @"East",
PostalCode = 28023,
Country = @"Spain",
Phone = @"(91) 555 22 82",
Fax = @"(91) 555 91 99"
});
this.Add(new CustomersDataItem()
{
ID = @"BONAP",
Company = @"Bon app'",
ContactName = @"Laurence Lebihan",
ContactTitle = @"Owner",
Address = @"12, rue des Bouchers",
City = @"Marseille",
Region = @"West",
PostalCode = 13008,
Country = @"France",
Phone = @"91.24.45.40",
Fax = @"91.24.45.41"
});
this.Add(new CustomersDataItem()
{
ID = @"BOTTM",
Company = @"Bottom-Dollar Markets",
ContactName = @"Elizabeth Lincoln",
ContactTitle = @"Accounting Manager",
Address = @"23 Tsawassen Blvd.",
City = @"Tsawassen",
Region = @"BC",
PostalCode = 28000,
Country = @"Canada",
Phone = @"(604) 555-4729",
Fax = @"(604) 555-3745"
});
this.Add(new CustomersDataItem()
{
ID = @"BSBEV",
Company = @"B's Beverages",
ContactName = @"Victoria Ashworth",
ContactTitle = @"Sales Representative",
Address = @"Fauntleroy Circus",
City = @"London",
Region = @"South",
PostalCode = 10000,
Country = @"UK",
Phone = @"(171) 555-1212",
Fax = @"(5) 555-3745"
});
this.Add(new CustomersDataItem()
{
ID = @"CACTU",
Company = @"Cactus Comidas para llevar",
ContactName = @"Patricio Simpson",
ContactTitle = @"Sales Agent",
Address = @"Cerrito 333",
City = @"Buenos Aires",
Region = @"East",
PostalCode = 1010,
Country = @"Argentina",
Phone = @"(1) 135-5555",
Fax = @"(1) 135-4892"
});
this.Add(new CustomersDataItem()
{
ID = @"CENTC",
Company = @"Centro comercial Moctezuma",
ContactName = @"Francisco Chang",
ContactTitle = @"Marketing Manager",
Address = @"Sierras de Granada 9993",
City = @"México D.F.",
Region = @"South",
PostalCode = 5022,
Country = @"Mexico",
Phone = @"(5) 555-3392",
Fax = @"(5) 555-7293"
});
this.Add(new CustomersDataItem()
{
ID = @"CHOPS",
Company = @"Chop-suey Chinese",
ContactName = @"Yang Wang",
ContactTitle = @"Owner",
Address = @"Hauptstr. 29",
City = @"Bern",
Region = @"East",
PostalCode = 3012,
Country = @"Switzerland",
Phone = @"0452-076545",
Fax = @"(5) 555-3745"
});
this.Add(new CustomersDataItem()
{
ID = @"COMMI",
Company = @"Comércio Mineiro",
ContactName = @"Pedro Afonso",
ContactTitle = @"Sales Associate",
Address = @"Av. dos Lusíadas, 23",
City = @"Sao Paulo",
Region = @"SP",
PostalCode = 34000,
Country = @"Brazil",
Phone = @"(11) 555-7647",
Fax = @"(5) 555-3745"
});
this.Add(new CustomersDataItem()
{
ID = @"CONSH",
Company = @"Consolidated Holdings",
ContactName = @"Elizabeth Brown",
ContactTitle = @"Sales Representative",
Address = @"Berkeley Gardens 12 Brewery",
City = @"London",
Region = @"South",
PostalCode = 27000,
Country = @"UK",
Phone = @"(171) 555-2282",
Fax = @"(171) 555-9199"
});
this.Add(new CustomersDataItem()
{
ID = @"DRACD",
Company = @"Drachenblut Delikatessen",
ContactName = @"Sven Ottlieb",
ContactTitle = @"Order Administrator",
Address = @"Walserweg 21",
City = @"Aachen",
Region = @"South",
PostalCode = 52066,
Country = @"Germany",
Phone = @"0241-039123",
Fax = @"0241-059428"
});
this.Add(new CustomersDataItem()
{
ID = @"DUMON",
Company = @"Du monde entier",
ContactName = @"Janine Labrune",
ContactTitle = @"Owner",
Address = @"67, rue des Cinquante Otages",
City = @"Nantes",
Region = @"East",
PostalCode = 44000,
Country = @"France",
Phone = @"40.67.88.88",
Fax = @"40.67.89.89"
});
this.Add(new CustomersDataItem()
{
ID = @"EASTC",
Company = @"Eastern Connection",
ContactName = @"Ann Devon",
ContactTitle = @"Sales Agent",
Address = @"35 King George",
City = @"London",
Region = @"East",
PostalCode = 41000,
Country = @"UK",
Phone = @"(171) 555-0297",
Fax = @"(171) 555-3373"
});
this.Add(new CustomersDataItem()
{
ID = @"ERNSH",
Company = @"Ernst Handel",
ContactName = @"Roland Mendel",
ContactTitle = @"Sales Manager",
Address = @"Kirchgasse 6",
City = @"Graz",
Region = @"South",
PostalCode = 8010,
Country = @"Austria",
Phone = @"7675-3425",
Fax = @"7675-3426"
});
this.Add(new CustomersDataItem()
{
ID = @"FAMIA",
Company = @"Familia Arquibaldo",
ContactName = @"Aria Cruz",
ContactTitle = @"Marketing Assistant",
Address = @"Rua Orós, 92",
City = @"Sao Paulo",
Region = @"SP",
PostalCode = 27000,
Country = @"Brazil",
Phone = @"(11) 555-9857",
Fax = @"(5) 555-3745"
});
this.Add(new CustomersDataItem()
{
ID = @"FISSA",
Company = @"FISSA Fabrica Inter. Salchichas S.A.",
ContactName = @"Diego Roel",
ContactTitle = @"Accounting Manager",
Address = @"C/ Moralzarzal, 86",
City = @"Madrid",
Region = @"East",
PostalCode = 28034,
Country = @"Spain",
Phone = @"(91) 555 94 44",
Fax = @"(91) 555 55 93"
});
this.Add(new CustomersDataItem()
{
ID = @"FOLIG",
Company = @"Folies gourmandes",
ContactName = @"Martine Rancé",
ContactTitle = @"Assistant Sales Agent",
Address = @"184, chaussée de Tournai",
City = @"Lille",
Region = @"South",
PostalCode = 59000,
Country = @"France",
Phone = @"20.16.10.16",
Fax = @"20.16.10.17"
});
this.Add(new CustomersDataItem()
{
ID = @"FOLKO",
Company = @"Folk och fä HB",
ContactName = @"Maria Larsson",
ContactTitle = @"Owner",
Address = @"Åkergatan 24",
City = @"Bräcke",
Region = @"East",
PostalCode = 36000,
Country = @"Sweden",
Phone = @"0695-34 67 21",
Fax = @"0695 33-4455"
});
this.Add(new CustomersDataItem()
{
ID = @"FRANK",
Company = @"Frankenversand",
ContactName = @"Peter Franken",
ContactTitle = @"Marketing Manager",
Address = @"Berliner Platz 43",
City = @"München",
Region = @"East",
PostalCode = 80805,
Country = @"Germany",
Phone = @"089-0877310",
Fax = @"089-0877451"
});
this.Add(new CustomersDataItem()
{
ID = @"FRANR",
Company = @"France restauration",
ContactName = @"Carine Schmitt",
ContactTitle = @"Marketing Manager",
Address = @"54, rue Royale",
City = @"Nantes",
Region = @"South",
PostalCode = 44000,
Country = @"France",
Phone = @"40.32.21.21",
Fax = @"40.32.21.20"
});
this.Add(new CustomersDataItem()
{
ID = @"FRANS",
Company = @"Franchi S.p.A.",
ContactName = @"Paolo Accorti",
ContactTitle = @"Sales Representative",
Address = @"Via Monte Bianco 34",
City = @"Torino",
Region = @"East",
PostalCode = 10100,
Country = @"Italy",
Phone = @"011-4988260",
Fax = @"011-4988261"
});
}
}cs
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 modulesnamespaceInfragistics.Samples
{
publicclassProgram
{
publicstaticasync 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(IgbIconModule),
typeof(IgbCheckboxModule)
);
await builder.Build().RunAsync();
}
}
}cs
/*
CSS styles are loaded from the shared CSS file located at:
https://static.infragistics.com/xplatform/css/samples/
*/.horizontal {
gap: 10px;
flex-basis: fit-content;
flex-wrap: wrap;
}
.sampleContainer {
padding: 0.5rem
}css
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