WPF FrameworkElement鼠标点击问题
在 WPF 应用程序中，我在网格内有一堆自定义控件。为了处理鼠标单击它们，我使用网格的 MouseLeftButtonDown 事件，并在事件处理程序中检查单击了哪个 CustomControl：
private void Grid_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
FrameworkElement feSourceComm = e.Source as FrameworkElement;
MyCustomControl SCurrentComm = new MyCustomControl();
try
{
SCurrentComm = (MyCustomControl)feSourceComm;
}
catch (Exception)
{
...
当我将所有 CustomControl 放入 UserControl 中，然后放入网格中时，出现了问题。在这种情况下，该方法不起作用。
我通过 e.Source.GetType().ToString(); 检查了每种情况下的点击源类型，并得到以下结果：
当没有问题时（如果我将 CustomControls在没有 UserControl 的网格中）
MyProjectNamespace.MyCustomControl
当我将 CustomControls 放入 UserControl，然后放入网格时
MyProjectNamespace.UserControls.MyUserControlName
当我将 CustomControls 放入 UserControl，然后放入网格并通过 XamlReader.Load 从外部文件加载 UserControl
System.Windows.Controls.UserControl
那么，我的问题：
当 CustomControls 位于 UserControl 内部时，如何使它们可视为 e.Source？
In a WPF app I have I bunch of CustomControls inside a Grid. For processing Mouse clicks on them I use the MouseLeftButtonDown event of the Grid and in the event handler I check which CustomControl was clicked:
private void Grid_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
FrameworkElement feSourceComm = e.Source as FrameworkElement;
MyCustomControl SCurrentComm = new MyCustomControl();
try
{
SCurrentComm = (MyCustomControl)feSourceComm;
}
catch (Exception)
{
...
The problem appeared when I placed all CustomControls in a UserControl and then inside the Grid. In this case approach doesn't work.
I checked the type of click source in each case by e.Source.GetType().ToString(); and get the following results:
When there are no problem (in case I put CustomControls in the Grid without UserControl)
MyProjectNamespace.MyCustomControl
When I put CustomControls in the UserControl and then in the Grid
MyProjectNamespace.UserControls.MyUserControlName
When I put CustomControls in the UserControl and then in the Grid and load the UserControl from external file by XamlReader.Load
System.Windows.Controls.UserControl
So, my question:
How to make CustomControls vizible as e.Source when they are inside of a UserControl?
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e.OriginalSource将告诉您点击发生在哪个特定元素上。如果这不是您的自定义控件，请沿着OriginalSource的父链向上查找，直到找到您的自定义控件e.OriginalSourcewill tell you which specific element the click happened on. if that is not your customcontrol, walk up the Parent chain of theOriginalSourceuntil you find your customcontrol