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HtmlInputImage::LoadPostData Method

Processes the postback data for the HtmlInputImage control.

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

protected:
virtual bool LoadPostData(
	String^ postDataKey, 
	NameValueCollection^ postCollection
)

Parameters

postDataKey
Type: System::String

The key identifier for the control.

postCollection
Type: System.Collections.Specialized::NameValueCollection

The collection of all incoming name values.

Return Value

Type: System::Boolean
true if the HtmlInputImage control's state has changed as a result of the postback; otherwise, false.

The LoadPostData method checks to see whether coordinates that represent the location where the image was clicked by the user are part of the postback data for the HtmlInputImage control. If coordinates are part of the postback data, then the LoadPostData method registers the HtmlInputImage control with the Web page as a control that requires an event to be raised when it is processed.

NoteNote:

The origin coordinates (0,0) are located in the upper-left corner of the image.

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

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0
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