GridItemsDroppedEventArgs.GetTargetDataSourceIndexAsync() Method

Returns the suggested insertion index in the target data source.

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v25.1.dll

NuGet Package: DevExpress.Blazor

Declaration

public Task<int> GetTargetDataSourceIndexAsync()

Returns

Type	Description
Task<Int32>	The suggested index.

Remarks

When you handle the ItemsDropped event, you can use TargetItem and DropPosition properties to define the position where to insert dropped rows. For data sources that have in-memory indices, you can call the GetTargetDataSourceIndexAsyncmethod to determine the target index automatically.

<DxGrid Data="Items"
        AllowDragRows="true"
        ItemsDropped="Grid_ItemsDropped">
    <Columns>
        <DxGridDataColumn FieldName="Name" />
    </Columns>
</DxGrid>
@* ... *@
@code {
    ObservableCollection<GridDataItem> Items { get; set; }
    public record GridDataItem(string Name);
@* ... *@
    async Task Grid_ItemsDropped(GridItemsDroppedEventArgs args) {
        var droppedItem = (GridDataItem)args.DroppedItems[0];
        Items.Remove(droppedItem);
        var index = await args.GetTargetDataSourceIndexAsync();
        Items.Insert(index, droppedItem);
    }
}