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@page "/datagrid-loaddata"
@using NorthwindBlazor.Data
@using NorthwindBlazor.Models.Northwind
@inject NorthwindContext dbContext
<h1 style="display:inline">DataGrid</h1><a style="margin-left: 10px" href="https://github.com/akorchev/blazor.radzen.com/blob/master/Pages/DataGridLoadDataPage.razor" target="_blank">[source code]</a><a style="margin-left: 10px" href="https://www.radzen.com/documentation/blazor/datagrid/" target="_blank">[documentation]</a>
<p>This page demonstrates <b>DataGrid</b> component bound using LoadData event. This technique can be used to populate data from external source like service.</p>
<RadzenGrid Count="@count" Data="@employees" LoadData="@LoadData" AllowPaging="true" PageSize="4" TItem="Employee" ColumnWidth="200px">
<Columns>
<RadzenGridColumn TItem="Employee" Property="EmployeeID" Title="Employee ID" />
<RadzenGridColumn TItem="Employee" Property="Photo" Title="Photo" Sortable="false" Filterable="false">
<Template Context="data">
<RadzenImage Path="@data?.Photo" />
</Template>
</RadzenGridColumn>
<RadzenGridColumn TItem="Employee" Property="LastName" Title="Last Name" />
<RadzenGridColumn TItem="Employee" Property="FirstName" Title="First Name" />
<RadzenGridColumn TItem="Employee" Property="Title" Title="Title" />
<RadzenGridColumn TItem="Employee" Property="TitleOfCourtesy" Title="Title Of Courtesy" />
<RadzenGridColumn TItem="Employee" Property="BirthDate" Title="Birth Date">
<Template Context="data">
@String.Format("{0:d}", data.BirthDate)
</Template>
</RadzenGridColumn>
<RadzenGridColumn TItem="Employee" Property="HireDate" Title="Hire Date">
<Template Context="data">
@String.Format("{0:d}", data.HireDate)
</Template>
</RadzenGridColumn>
<RadzenGridColumn TItem="Employee" Property="Address" Title="Address" />
<RadzenGridColumn TItem="Employee" Property="City" Title="City" />
<RadzenGridColumn TItem="Employee" Property="Region" Title="Region" />
<RadzenGridColumn TItem="Employee" Property="PostalCode" Title="Postal Code" />
<RadzenGridColumn TItem="Employee" Property="Country" Title="Country" />
<RadzenGridColumn TItem="Employee" Property="HomePhone" Title="Home Phone" />
<RadzenGridColumn TItem="Employee" Property="Extension" Title="Extension" />
<RadzenGridColumn TItem="Employee" Property="Notes" Title="Notes" />
</Columns>
</RadzenGrid>
@code {
int count;
IEnumerable<Employee> employees;
protected override async Task OnInitializedAsync()
{
count = await Task.FromResult(dbContext.Employees.Count());
}
private async void LoadData(LoadDataArgs args)
{
employees = await Task.FromResult(dbContext.Employees.Skip(args.Skip.Value).Take(args.Top.Value));
}
}
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