private void positionLoadBtn_Click(object sender, RibbonControlEventArgs e) { PositionMasterView view = new PositionMasterView(); PositionMasterVM vm = new PositionMasterVM(); view.ViewModel_ = vm; //view.ViewModel_. = InstPositionWapperVM_; Window w = new Window(); w.Content = view; w.Visibility = 0; }