C# 在绑定中从容器类调用方法

我确实有-

<UserControl ...>
<Grid>
    <TreeView Name="nTree">
        <TreeView.ItemTemplate>
            <HierarchicalDataTemplate DataType="NodeType" ItemsSource="{Binding Children}">
                <StackPanel Orientation="Horizontal">
                    <Image x:Name="icon" />
                    <TextBlock Text="{Binding Name}" />
                </StackPanel>
            </HierarchicalDataTemplate>
        </TreeView.ItemTemplate>
    </TreeView>
</Grid>
</UserControl>

---

这感觉应该是可能的，但我正在努力解决它。非常感谢您的帮助。

不幸的是，您无法绑定到方法，您需要将该方法转换为属性

您可以通过几种方式来实现这一点

最简单的方法是：（虽然这应该在你的VM上，而不是你的V上）

或者您可以使用值转换器：（最适合您描述的内容）

第三种选择是使用：

然后绑定到命令

CommandBinding OpenCmdBinding = new CommandBinding(
    ApplicationCommands.Open,
    OpenCmdExecuted,
    OpenCmdCanExecute);

this.CommandBindings.Add(OpenCmdBinding);

void OpenCmdExecuted(object target, ExecutedRoutedEventArgs e)
{
    String command, targetobj;
    command = ((RoutedCommand)e.Command).Name;
    targetobj = ((FrameworkElement)target).Name;
    MessageBox.Show("The " + command +  " command has been invoked on target object " + targetobj);

}

void OpenCmdCanExecute(object sender, CanExecuteRoutedEventArgs e)
{
    e.CanExecute = true;
}

---

谢谢-我已经设法让它与一个值转换器一起工作。这并不理想，但它能以一种不那么糟糕的方式完成工作。

public ImageSource Icon
{
    ...
}

public class ImageConverter : IValueConverter
{
    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
    {
        GetImageLogic
    }

    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
    {
        throw new NotImplementedException("One way only");
    }
}

CommandBinding OpenCmdBinding = new CommandBinding(
    ApplicationCommands.Open,
    OpenCmdExecuted,
    OpenCmdCanExecute);

this.CommandBindings.Add(OpenCmdBinding);

void OpenCmdExecuted(object target, ExecutedRoutedEventArgs e)
{
    String command, targetobj;
    command = ((RoutedCommand)e.Command).Name;
    targetobj = ((FrameworkElement)target).Name;
    MessageBox.Show("The " + command +  " command has been invoked on target object " + targetobj);

}

void OpenCmdCanExecute(object sender, CanExecuteRoutedEventArgs e)
{
    e.CanExecute = true;
}