我使用MVVM模式创建了最简单的WPF项目。如何从我的viewModel中调用ShowMessageAsync
?
if (DisciplineText!="")
{
Disciplines.Add(new Discipline(){ChairID = SelectedChair.ChairID,SemesterID = SelectedSemester.SemesterID,Discipline1 = DisciplineText});
Context.SaveChanges();
}
else
{
// ShowMessageAsync????????
}
答案 0 :(得分:7)
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;
我希望它有所帮助:)
答案 1 :(得分:0)
处理这些问题的一种机制有been added,因为问题原来是通过它所谓的DialogCoordinator
来询问的。作者This blog post包含如何使用它的描述;如果消失,主要步骤如下:
将以下内容添加到视图的xaml中:
xmlns:Dialog="clr-namespace:MahApps.Metro.Controls.Dialogs;assembly=MahApps.Metro"
Dialog:DialogParticipation.Register="{Binding}"
以适合您应用的方式将DialogCoordinator
注入您的视图模型中:
public MainWindow()
{
InitializeComponent();
DataContext = new MainWindowViewModel(DialogCoordinator.Instance);
}
开始显示一些对话框:
public MainWindowViewModel(IDialogCoordinator dialogCoordinator)
{
this.dialogCoordinator = dialogCoordinator;
}
private IDialogCoordinator dialogCoordinator;
private void ShowDialog()
{
dialogCoordinator.ShowMessageAsync(this, "Title of dialog", "Message in dialog");
}