System.Web.UI.HtmlControls.HtmlSelect.OnServerChange Method

Raises the HtmlSelect.ServerChange event of the System.Web.UI.HtmlControls.HtmlSelect control. This allows you to provide a custom handler for the event.

Syntax

protected virtual void OnServerChange (EventArgs e)

Parameters

e
A EventArgs that contains the event data.

Remarks

The HtmlSelect.ServerChange event is raised when the selected items in the System.Web.UI.HtmlControls.HtmlSelect control change between posts to the server.

Note:

This event is raised only when the user initiates a post to the server, such as by clicking a Submit button. This event does not cause a post to the server to occur.

Note:

The control must have view state enabled for the HtmlSelect.ServerChange event to work correctly.

You can use this event to perform data validation on the System.Web.UI.HtmlControls.HtmlSelect control when the user changes the selection in the control.

Raising an event invokes the event handler through a delegate. For more information, see Raising an Event.

The HtmlSelect.OnServerChange(EventArgs) method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Requirements

Namespace: System.Web.UI.HtmlControls
Assembly: System.Web (in System.Web.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0