public NewTextWindow(Label lbl = null) { InitializeComponent(); if (lbl != null) { NewTextVM.EditMode = true; var dc = lbl.DataContext as NewTextViewModel; NewTextVM.Refresh(dc); fontDialog = dc.FontDialog; } NewText = new OwnTextModel(); NewTextBlock = new TextBlock(); NewText.Content = NewTextBlock; AppHandler.BindData(NewText, NewTextBlock); NewText.DataContext = NewTextVM; }