FormView::PageIndexChanging Event

 

Occurs when the value of the PageIndex property changes before a paging operation.

Namespace:   System.Web.UI.WebControls
Assembly:  System.Web (in System.Web.dll)

public:
event FormViewPageEventHandler^ PageIndexChanging {
	void add(FormViewPageEventHandler^ value);
	void remove(FormViewPageEventHandler^ value);
}

The FormView control raises the PageIndexChanging event when a pager button (a button with its CommandName property set to "Page") within the control is clicked, but before the FormView control handles the paging operation. This allows you to provide an event-handling method that performs a custom routine, such as canceling the paging operation, whenever this event occurs.

System_CAPS_noteNote

This event is not raised when you programmatically set the PageIndex property.

Pager buttons are usually located in the pager row of a FormView control.

A FormViewPageEventArgs object is passed to the event-handling method, which allows you to determine the index of the page selected by the user and to indicate that the paging operation should be canceled. To determine the index of the page selected by the user, use the NewPageIndex property. To cancel the paging operation, set the Cancel property of the FormViewPageEventArgs object to true.

For more information about handling events, see NIB: Consuming Events.

The following example demonstrates how to use the PageIndexChanging event to cancel a paging operation.

System_CAPS_security Security Note

This example has a text box that accepts user input, which is a potential security threat. By default, ASP.NET Web pages validate that user input does not include script or HTML elements. For more information, see Script Exploits Overview.

No code example is currently available or this language may not be supported.

.NET Framework
Available since 2.0
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