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HtmlSelect.LoadPostData Method

Processes the postback data for the HtmlSelect control.

Namespace: System.Web.UI.HtmlControls
Assembly: System.Web (in system.web.dll)

protected virtual bool LoadPostData (
	string postDataKey,
	NameValueCollection postCollection
protected boolean LoadPostData (
	String postDataKey, 
	NameValueCollection postCollection
protected function LoadPostData (
	postDataKey : String, 
	postCollection : NameValueCollection
) : boolean
Not applicable.



The key identifier for the control.


The collection of all incoming name values.

Return Value

true if the HtmlSelect control's state has changed as a result of a postback; otherwise, false.

Exception typeCondition


The SelectedIndex property was set to a value greater than the number of items in the HtmlSelect control or less than -1.

The LoadPostData method checks whether the postback data of the HtmlSelect control is different from its previous value, and if so, returns true. If the HtmlSelect control's Multiple property is false, indicating a single-selection HtmlSelect control, then the LoadPostData method checks the SelectedIndex property. If the HtmlSelect control's Multiple property is true, indicating a multiple-selection HtmlSelect control, then the LoadPostData method checks the SelectedIndices property.

The LoadPostData method is used primarily by control developers extending the functionality of the HtmlSelect control.

Windows 98, Windows Server 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0