In case you would like to display a confirmation dialog to prompt the user whether the selected action should be executed or not, there are two possible scenarios:
- In the standard mode, when Telerik RadGrid performs postbacks, you will invoke the confirm javascript method.
- When Telerik RadGrid works in AJAX mode the same approach is still applicable - you merely need to return false from the OnClientClick handler in case the user chooses negative option from the confirmation dialog
Here is an example usage:
| ASPX/ASCX |
 Copy Code |
|
<rad:RadGrid ID="RadGrid1" runat="server" DataSourceID="AccessDataSource1"
OnNeedDataSource="RadGrid1_NeedDataSource" EnableAJAX="true">
<MasterTableView AutoGenerateColumns="False" DataKeyNames="CustomerID" DataSourceID="AccessDataSource1">
<Columns>
<rad:GridBoundColumn DataField="CustomerID" HeaderText="CustomerID" ReadOnly="True"
SortExpression="CustomerID" UniqueName="CustomerID">
</rad:GridBoundColumn>
<rad:GridBoundColumn DataField="CompanyName" HeaderText="CompanyName" SortExpression="CompanyName"
UniqueName="CompanyName">
</rad:GridBoundColumn>
<rad:GridBoundColumn DataField="ContactName" HeaderText="ContactName" SortExpression="ContactName"
UniqueName="ContactName">
</rad:GridBoundColumn>
<rad:GridTemplateColumn UniqueName="TemplateColumn">
<ItemTemplate>
<asp:ImageButton ID="ImageButton1" runat="server" AlternateText="Delete Customer"
OnClientClick="javascript:if(!confirm('This action will delete the selected customer and all of his/her orders.
Are you sure?')){return false;}"
ImageUrl="~/RadControls/Grid/Skins/Default/Delete.gif" />
</ItemTemplate>
</rad:GridTemplateColumn>
</Columns>
</MasterTableView>
</rad:RadGrid> |
The result form the code above, you can see on the screenshot below:
