HtmlInputImage.LoadPostData(String, NameValueCollection) Method

Reference

Definition

Namespace:: System.Web.UI.HtmlControls

Assembly:: System.Web.dll

Important

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Processes the postback data for the HtmlInputImage control.

protected:
 virtual bool LoadPostData(System::String ^ postDataKey, System::Collections::Specialized::NameValueCollection ^ postCollection);

protected virtual bool LoadPostData (string postDataKey, System.Collections.Specialized.NameValueCollection postCollection);

abstract member LoadPostData : string * System.Collections.Specialized.NameValueCollection -> bool
override this.LoadPostData : string * System.Collections.Specialized.NameValueCollection -> bool

Protected Overridable Function LoadPostData (postDataKey As String, postCollection As NameValueCollection) As Boolean

Parameters

postDataKey: String

The key identifier for the control.

postCollection: NameValueCollection

The collection of all incoming name values.

Returns

Boolean

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

Remarks

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.

Note

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.

Applies to

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