HtmlInputImage::LoadPostData Method
Processes the postback data for the HtmlInputImage control.
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::Booleantrue 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.
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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 SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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