Wpf Treeview双击事件

我有两个带有treeview控件的视图。在两个XAML文件中，我都添加了双击事件：

<TreeView x:Name="tvTest" ItemsSource="{Binding}" Style="{StaticResource TreeviewStyle}" MouseDoubleClick="tvTest_MouseDoubleClick">

在第一个视图中，这是正确的，但是第二个视图给了我这个错误：
*tvTest_MouseDoubleClick不是MySecondView的成员*

为什么会这样？设计器生成的代码中出现错误：

AddHandler Me.tvTest.MouseDoubleClick, New System.Windows.Input.MouseButtonEventHandler(AddressOf Me.tvTest_MouseDoubleClick)

问候,

米歇尔

编辑：

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投票赞成亚历克斯的解决方案。但是，为了解决一般问题，我使用了

在第二个视图中似乎没有事件处理程序（这就是为什么不建议使用代码隐藏）

我知道你说过TreeView没有双击命令，但这不能阻止我们为自己创建一个

下面是我编写的一个基本类，用于向任何框架元素公开DoubleClickCommand

    public class DoubleClickCommand
    {
        public static object GetDoubleClickParameter(DependencyObject obj)
        {
            return (object)obj.GetValue(DoubleClickParameterProperty);
        }

        public static void SetDoubleClickParameter(DependencyObject obj, object value)
        {
            obj.SetValue(DoubleClickParameterProperty, value);
        }

        public static ICommand GetDoubleClickCommand(DependencyObject obj)
        {
            return (ICommand)obj.GetValue(DoubleClickCommandProperty);
        }

        public static void SetDoubleClickCommand(DependencyObject obj, ICommand value)
        {
            obj.SetValue(DoubleClickCommandProperty, value);
        }


        public static readonly DependencyProperty DoubleClickParameterProperty = DependencyProperty.RegisterAttached("DoubleClickParameter", typeof(object), typeof(DoubleClickCommand), new UIPropertyMetadata(null));

        public static readonly DependencyProperty DoubleClickCommandProperty = DependencyProperty.RegisterAttached("DoubleClickCommand", typeof(ICommand), typeof(DoubleClickCommand), new UIPropertyMetadata(null, OnDoubleClickCommandChanged));


        private static void OnDoubleClickCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
        {
            FrameworkElement elem = d as FrameworkElement;
            var newCommand = args.NewValue as ICommand;
            if (elem != null)
            {
                if (newCommand != null)
                {
                    elem.MouseLeftButtonDown += elem_MouseLeftButtonDown;
                }
                else
                {
                    elem.MouseLeftButtonDown -= elem_MouseLeftButtonDown;
                }
            }
        }

        private static void elem_MouseLeftButtonDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
        {
            if (e.ClickCount > 1)
            {
                DependencyObject dep = sender as DependencyObject;
                ICommand command = GetDoubleClickCommand(dep) as ICommand;
                var parameter = GetDoubleClickParameter(dep);
                if (command != null)
                {
                    if (command.CanExecute(parameter))
                    {
                        command.Execute(parameter);
                    }
                }
            }
        }
    }

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要将其用于TreeView项目，只需在TreeView的ItemTemplate上设置Command和CommandParameter（可选）。

我有两个带有TreeView控件的视图。是什么意思？我只为

TreeView

编写了一个代码段，而不是两个。这意味着我有两个几乎相同的TreeView xaml（其他命名）视图。出于这个原因，我没有在代码中添加两个片段。非常有趣。我会将代码转换为vb.net，尝试一下，然后告诉您。typeof（行为）应该是typeof（DoubleClickCommand），对吗？是的，很抱歉，我从Behaviors重命名了类，但忘记更改属性。。。将更新。我想您可以使用

UIElement

    public class DoubleClickCommand
    {
        public static object GetDoubleClickParameter(DependencyObject obj)
        {
            return (object)obj.GetValue(DoubleClickParameterProperty);
        }

        public static void SetDoubleClickParameter(DependencyObject obj, object value)
        {
            obj.SetValue(DoubleClickParameterProperty, value);
        }

        public static ICommand GetDoubleClickCommand(DependencyObject obj)
        {
            return (ICommand)obj.GetValue(DoubleClickCommandProperty);
        }

        public static void SetDoubleClickCommand(DependencyObject obj, ICommand value)
        {
            obj.SetValue(DoubleClickCommandProperty, value);
        }


        public static readonly DependencyProperty DoubleClickParameterProperty = DependencyProperty.RegisterAttached("DoubleClickParameter", typeof(object), typeof(DoubleClickCommand), new UIPropertyMetadata(null));

        public static readonly DependencyProperty DoubleClickCommandProperty = DependencyProperty.RegisterAttached("DoubleClickCommand", typeof(ICommand), typeof(DoubleClickCommand), new UIPropertyMetadata(null, OnDoubleClickCommandChanged));


        private static void OnDoubleClickCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs args)
        {
            FrameworkElement elem = d as FrameworkElement;
            var newCommand = args.NewValue as ICommand;
            if (elem != null)
            {
                if (newCommand != null)
                {
                    elem.MouseLeftButtonDown += elem_MouseLeftButtonDown;
                }
                else
                {
                    elem.MouseLeftButtonDown -= elem_MouseLeftButtonDown;
                }
            }
        }

        private static void elem_MouseLeftButtonDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
        {
            if (e.ClickCount > 1)
            {
                DependencyObject dep = sender as DependencyObject;
                ICommand command = GetDoubleClickCommand(dep) as ICommand;
                var parameter = GetDoubleClickParameter(dep);
                if (command != null)
                {
                    if (command.CanExecute(parameter))
                    {
                        command.Execute(parameter);
                    }
                }
            }
        }
    }