如何使用MVVM Light Toolkit通过“取消”按钮关闭ChildWindow
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我是MVVM的新手，它试图弄清楚如何使用MVVM Light Toolkit通过传统的“取消”按钮关闭ChildWindow。
在我的ChildWindow（StoreDetail.xaml）中，我有：
<Button x:Name=\"CancelButton\" Content=\"Cancel\" Command=\"{Binding CancelCommand}\" />
public ICommand CancelCommand { get; private set; }
public ViewModelStoreDetail()
{
CancelCommand = new RelayCommand(CancelEval);
}
private void CancelEval()
{
//Not sure if Messenger is the way to go here...
//Messenger.Default.Send<string>(\"ClosePostEventChildWindow\", \"ClosePostEventChildWindow\");
}
没有找到相关结果
已邀请:
8 个回复
邦绊门蔽惩
private DelegateCommand _cancelCommand; public ICommand CancelCommand { get { if (_cancelCommand == null) _cancelCommand = new DelegateCommand(CloseWindow); return _cancelCommand; } } private void CloseWindow() { Application.Current.Windows[Application.Current.Windows.Count - 1].Close(); }栖很钾是狠
它与单击窗口上的X按钮或按键盘上的ESC相同。厘恼轨
，要么实现暴露和事件的接口 然后，您可以在Window的DataContext内部（如果将ViewModel设置为它）可以附加到事件。 这是本文的摘录（图7）。您可以根据需要进行调整。// In App.xaml.cs protected override void OnStartup(StartupEventArgs e) { base.OnStartup(e); MainWindow window = new MainWindow(); // Create the ViewModel to which // the main window binds. string path = \"Data/customers.xml\"; var viewModel = new MainWindowViewModel(path); // When the ViewModel asks to be closed, // close the window. viewModel.RequestClose += delegate { window.Close(); }; // Allow all controls in the window to // bind to the ViewModel by setting the // DataContext, which propagates down // the element tree. window.DataContext = viewModel; window.Show(); }阀傻
响摔衅幸
中注册关闭方法（通常在文件后面的代码中），然后在需要时发送关闭窗口的请求。氮顺
眠缝
扭湘阀柿蹄
public RelayCommand CancelCommand { get; private set; }然后：private void CloseWindow() { Application.Current.Windows[Application.Current.Windows.Count - 1].Close(); }public class ChildViewModel { public RelayCommand CancelCommand { get; private set; } public ChildViewModel() { SaveSettings = new RelayCommand(() => CloseWindow()); } private void CloseWindow() { Application.Current.Windows[Application.Current.Windows.Count - 1].Close(); } }