public void OpenEditValueFunctionWindow(ref MultiValueFactory _factory, MultiValueFunction _to_edit)
 {
     this.create_MVFunct_win           = new CreateMVFunctionWindow();
     this.create_MVFunct_win.Loaded   += create_MVFunct_win_Loaded;
     this.create_MVFunct_win.MVFactory = _factory;
     this.function_in_edit_mode        = _to_edit;
     this.create_MVFunct_win.ShowDialog();
 }
 public void OpenCreateValueFunctionWindow(ref MultiValueFactory _factory)
 {
     this.create_MVFunct_win           = new CreateMVFunctionWindow();
     this.create_MVFunct_win.MVFactory = _factory;
     this.create_MVFunct_win.ShowDialog();
 }