DxGrid.IsRowSelected(Int32) Method
Returns whether the specified row is selected.
Namespace: DevExpress.Blazor
Assembly: DevExpress.Blazor.v24.1.dll
NuGet Package: DevExpress.Blazor
Declaration
public bool IsRowSelected(
int visibleIndex
)
Parameters
Name | Type | Description |
---|---|---|
visibleIndex | Int32 | The row’s visible index. |
Returns
Type | Description |
---|---|
Boolean |
|
Remarks
Call the IsRowSelected
method to identify whether the specified Grid row is selected. You can also call the IsDataItemSelected method to check whether the row that corresponds to the specified data item is selected.
Note
The Grid bound to an Instant Feedback Data Source or GridDevExtremeDataSource loads data asynchronously in small portions (instead of the entire dataset). Before you call the IsRowSelected
method, call the WaitForRemoteSourceRowLoadAsync(Int32) method to ensure that the specified data row is loaded.
@using Microsoft.EntityFrameworkCore
@inject IDbContextFactory<NorthwindContext> NorthwindContextFactory
@implements IDisposable
<DxGrid Data="GridDataSource"
@bind-SelectedDataItems="@SelectedDataItems"
KeyFieldName="ProductId"
@ref="MyGrid">
<Columns>
<DxGridSelectionColumn />
<DxGridDataColumn FieldName="ProductName" />
<DxGridDataColumn FieldName="UnitPrice" />
<DxGridDataColumn FieldName="QuantityPerUnit" />
<DxGridDataColumn FieldName="UnitsInStock" />
</Columns>
</DxGrid>
<DxButton Click="() => IsRowSelectedInfo = MyGrid.IsRowSelected(0)">
Is First Row Selected</DxButton>
<DxButton Click="() => IsDataItemSelectedInfo = MyGrid.IsDataItemSelected(GridDataSource.First())">
Is First Data Item Selected</DxButton>
<div><b>Is First Row Selected</b>: @IsRowSelectedInfo</div>
<div><b>Is First Data Item Selected</b>: @IsDataItemSelectedInfo</div>
@code {
IEnumerable<object> GridDataSource { get; set; }
NorthwindContext Northwind { get; set; }
IReadOnlyList<object> SelectedDataItems { get; set; }
IGrid MyGrid { get; set; }
bool IsRowSelectedInfo { get; set; }
bool IsDataItemSelectedInfo { get; set; }
protected override void OnInitialized() {
Northwind = NorthwindContextFactory.CreateDbContext();
GridDataSource = Northwind.Products.ToList();
SelectedDataItems = GridDataSource.Skip(1).Take(2).ToList();
}
public void Dispose() {
Northwind?.Dispose();
}
}
For more information about selection in the Grid component, refer to the following topic: Selection and Focus in Blazor Grid.