的MVVM和消息框一個可行的方法是一個簡單的事件機制:
public class MessageBoxDisplayEventArgs : EventArgs
{
public string Title { get; set; }
// Other properties here...
}
...
public class ViewModelBase
{
public event EventHandler<MessageBoxDisplayEventArgs> MessageBoxDisplayRequested;
protected void OnMessageBoxDisplayRequest(string title)
{
if (this.MessageBoxDisplayRequested != null)
{
this.MessageBoxDisplayRequested(
this,
new MessageBoxDisplayEventArgs
{
Title = title
});
}
}
}
...
public class YourViewModel : ViewModelBase
{
private void SomeMethod()
{
this.OnMessageBoxDisplayRequest("hello world");
}
}
...
public class YourView
{
public YourView()
{
var vm = new YourViewModel();
this.Datacontext = vm;
vm.MessageBoxDisplayRequested += (sender, e) =>
{
// UI logic here
//MessageBox.Show(e.Title);
};
}
}