c# - Mahapp ShowMessageAsync MvvM

我用MVVM模式创建了最简单的WPF项目。如何从viewModel调用ShowMessageAsync？

 if (DisciplineText!="")
 {
     Disciplines.Add(new Discipline(){ChairID = SelectedChair.ChairID,SemesterID = SelectedSemester.SemesterID,Discipline1 = DisciplineText});
     Context.SaveChanges();
 }
 else
 {
     //  ShowMessageAsync????????
 }

最佳答案

MetroWindow metroWindow = Application.Current.MainWindow as MetroWindow;
metroWindow.MetroDialogOptions.ColorScheme = MetroDialogColorScheme.Accented; // set the theme
await MetroWindow.ShowMessageAsync("Title", "Message");

您需要使用：

using MahApps.Metro.Controls;
using MahApps.Metro.Controls.Dialogs;

希望对您有所帮助:)