void miSelectConstructor_Click(object sender, EventArgs e)
        {
            MethodDiagramViewer mv = this.Parent as MethodDiagramViewer;

            if (mv != null)
            {
                AB_Constructor           av  = this.ActionObject as AB_Constructor;
                IConstructor             cp  = av.ActionData.ActionMethod as IConstructor;
                LocalVariable            lv  = cp.Owner as LocalVariable;
                dlgConstructorParameters dlg = new dlgConstructorParameters();
                dlg.SetMethod(mv.DesignerHolder.Method);
                dlg.LoadData(lv);
                dlg.LocateConstructor(cp);
                if (dlg.ShowDialog(this.FindForm()) == DialogResult.OK)
                {
                    cp.CopyFrom(dlg.Ret);
                    mv.Changed = true;
                }
            }
        }