Confirmation Dialogs

To display a confirmation dialog that prompts the user whether a selected action should be executed (from a button in a template), invoke the confirm javascript method (or use radConfirm for a confirmation dialog that uses skins). If the user chooses the negative option in the confirmation dialog, return false from the OnClientClick event handler of the button.

Here is an example:

ASP.NET

<telerik:RadGrid RenderMode="Lightweight" ID="RadGrid1" runat="server" DataSourceID="SqlDataSource1">
  <MasterTableView AutoGenerateColumns="False" DataKeyNames="CustomerID" DataSourceID="SqlDataSource1">
    <Columns>
      <telerik:GridBoundColumn DataField="CustomerID" HeaderText="CustomerID" ReadOnly="True"
        SortExpression="CustomerID" UniqueName="CustomerID">
      </telerik:GridBoundColumn>
      <telerik:GridBoundColumn DataField="CompanyName" HeaderText="CompanyName" SortExpression="CompanyName"
        UniqueName="CompanyName">
      </telerik:GridBoundColumn>
      <telerik:GridBoundColumn DataField="ContactName" HeaderText="ContactName" SortExpression="ContactName"
        UniqueName="ContactName">
      </telerik:GridBoundColumn>
      <telerik:GridTemplateColumn UniqueName="TemplateColumn">
        <ItemTemplate>
          <asp:ImageButton ID="ImageButton1" runat="server" AlternateText="Delete Customer"
            OnClientClick="javascript:if(!confirm('This action will delete the
      selected customer. Are you sure?')){return false;}" ImageUrl="~/Images/Delete.gif" OnClick="ImageButton1_Click" />
        </ItemTemplate>
      </telerik:GridTemplateColumn>
    </Columns>
  </MasterTableView>
</telerik:RadGrid>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:NorthwindConnectionString %>"
   SelectCommand="SELECT [CustomerID], [CompanyName], [ContactName] FROM [Customers]">
</asp:SqlDataSource>

The code above results in the following confirmation dialog when the user clicks on the image button: