Server-side Selecting with a Select Button
You can add GridButtonColumn columns to a grid to handle the selection and de-selection of grid rows. The RadGrid Command API can automatically handle the select and de-select commands: you need only add the GridButtonColumn objects to the Commands collection and set their CommandName property:
<telerik:RadGrid RenderMode="Lightweight" ID="RadGrid1" runat="server" AllowPaging="True" PageSize="5" Skin="Silk"
DataSourceID="SqlDataSource1" AllowMultiRowSelection="True">
<MasterTableView DataSourceID="AccessDataSource1">
<Columns>
<telerik:GridButtonColumn CommandName="Select" Text="Select" UniqueName="Select">
</telerik:GridButtonColumn>
<telerik:GridButtonColumn CommandName="Deselect" Text="Deselect" UniqueName="Deselect">
</telerik:GridButtonColumn>
</Columns>
</MasterTableView></telerik:RadGrid>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:NorthwindConnectionString %>"
SelectCommand="SELECT [CustomerID], [CompanyName], [ContactName], [Country] FROM [Customers]">
</asp:SqlDataSource>
You can access the selected rows using the SelectedItems collection of the RadGrid object. In addition, you can handle the SelectedIndexChanged server event of the grid to detect when a row's selection changes perform additional operations if needed.
For a live example showing server-side selection, see Server-side row selection.