All pagelets are not resizeable.
[Visual Basic] Overridable Public ReadOnly Property AllowResize As Boolean [C#] public bool AllowResize {override get;} [C++] public: __property virtual bool get_AllowResize(); [JScript] public function get AllowResize() : Boolean;
PageletDesigner Class | PageletDesigner Members | System.Web.UI.Design.WebControls Namespace