Allows controls to automatically register a hidden field on the form. The field will be emitted when the form control renders itself.
[Visual Basic] Overridable Public Function RegisterHiddenField( _ ByVal hiddenFieldName As String, _ ByVal hiddenFieldInitialValue As String _ ) As Boolean [C#] public virtual bool RegisterHiddenField( string hiddenFieldName, string hiddenFieldInitialValue ); [C++] public: virtual bool RegisterHiddenField( String* hiddenFieldName, String* hiddenFieldInitialValue ); [JScript] public function RegisterHiddenField( hiddenFieldName : String, hiddenFieldInitialValue : String ) : Boolean;
true if the unique name does not exist; otherwise false.