Custom Cell Content
As of R2 2022, the RadVirtualGrid allows you to display any control as the content of its cells.
You can do so via the new CellTemplateNeeded event. Its CellTemplateEventArgs expose the following properties:
- ColumnIndex: The index of the column.
- RowIndex: The index of the row.
-
DataItem: The object that represents the row in case a DataProvider is used, otherwise it's
null. - DataTemplate: The DataTemplate to be applied for this cell.
When a DataProvider is used, the CellTemplateNeeded event also provides the data item, which will be the DataContext inside the DataTemplate. In scenarios without a DataProvider, the DataContext inside the cell will be whatever is passed to the CellValueNeeded event for the given cell.
Here's an example of how you can display an image for one of the columns.
Define the template for the cells
<Window.Resources>
<DataTemplate x:Key="ImageTemplate">
<!-- This example assumes the bound objects expose a public Image property
which holds the path to the actual image -->
<Image Source="{Binding Image}" />
</DataTemplate>
</Window.Resources>
Display image as the content of the cells
private void VirtualGrid_CellTemplateNeeded(object sender, Telerik.Windows.Controls.VirtualGrid.CellTemplateEventArgs e)
{
if (e.ColumnIndex == 3)
{
e.DataTemplate = this.Resources["ImageTemplate"] as DataTemplate;
}
}
