OnPopUpShowing

Telerik.Web.UI.GridDataItemCancelEventArgs OnPopUpShowing Property

To get or set property values for client API properties, you must call property accessor methods that are named with the get_ and set_ prefixes. For example, to get or set a value for a property such as cancel, you call the get_cancel or set_cancel.

This event fires when the pop-up edit form is being shown. The event could be handled to set the position of the pop-up edit form of RadGrid.

Fired by	RadGrid
Arguments	popUp - html element of the pop-up edit form
Can be canceled	Yes, set eventArgs.set_cancel(true) to cancel

Example:

ASP.NET

<telerik:RadGrid RenderMode="Lightweight" ID="RadGrid1" runat="server">
    <ClientSettings>
        <ClientEvents OnPopUpShowing ="PopUpShowing" />
    </ClientSettings>
</telerik:RadGrid>

JavaScript

function PopUpShowing(sender, eventArgs) {
    var popUp = eventArgs.get_popUp();
}
//OR
function PopUpShowing(sender, eventArgs) {
    eventArgs.set_cancel(true);
}