c# - 文本框输入键事件在 WPF 中不起作用

Question

keydown 事件无法正常工作。当按下回车键时，我想引发与按钮相同的事件。这是 C#

    public partial class Search : Control
    {
        public SearchRevision()
        {
            InitializeComponent();
        }


        private void Button_Click_1(object sender, RoutedEventArgs e)
        {
            SearchViewModel vm = this.DataContext as SearchViewModel;
            if (vm != null)
                vm.Refresh();
        }

        private void myTextBox_KeyDown(Object sender, KeyEventArgs e)
        {
            if (e.Key == Key.Enter)
            {
                SearchViewModel vm = this.DataContext as SearchViewModel;
                if (vm != null)
                    vm.Refresh();
            }
        }

        private void myTextBox_Escape(Object sender, KeyEventArgs e)
        {
            if (e.Key == Key.Escape)
            {
                txtName.Text = "";
            }
        }
    }

Answer 1

在 wpf 中没有 keycode 或 keys.enter相反，您可以使用:

private void myTextBox_KeyDown(Object sender, KeyEventArgs e)
{
    if (e.Key == Key.Enter)
    {
        SearchViewModel vm = this.DataContext as SearchViewModel;
        if (vm != null)
            vm.Refresh();
    }
}