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HtmlSelect.LoadPostData(String, NameValueCollection) Method

  • Reference

Definition

Namespace:
System.Web.UI.HtmlControls
Assembly:
System.Web.dll

Processes the postback data for the HtmlSelect 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 HtmlSelect control's state has changed as a result of a postback; otherwise, false.

Exceptions

ArgumentOutOfRangeException

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

Remarks

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.

Applies to

See also