如何获得x：名称值运行时 [英] How to get x:Name value runtime

问题描述

 < ListView.View GridViewColumnHeader.Click =ColumnHeaderClick> 
< GridView> 
< GridViewColumn x：Name =ColHeader =Item> 
 
 
 
 private void ColumnHeaderClick（object sender，RoutedEventArgs e）
 {
 GridViewColumnHeader headerClicked = e.OriginalSource as GridViewColumnHeader; 
 
 
 $ / code> 

现在，如何获取GridViewColumn的x：Name值在方法中？我无法在xaml中为列添加'Name'属性，并且它在运行时像空字符串一样。虽然我能够获得标题，但仍需要获取x：Name值。 当您在元素上使用 x：Name 不是 FrameworkElement 或 FrameworkContentElement ，它用 NameScope 。不幸的是，你不能检索元素的名称，查找只能用其他方法。

如果您需要传递有关DataGridColumn的其他信息，附加属性将是一个简单的方法。

有关 x：可以在MSDN上找到名称。另外， NameScope文档描述了它的行为。

I got:

   <ListView.View GridViewColumnHeader.Click="ColumnHeaderClick">
      <GridView>
          <GridViewColumn x:Name="Col" Header="Item">   



   private void ColumnHeaderClick(object sender, RoutedEventArgs e)
     {
        GridViewColumnHeader headerClicked = e.OriginalSource as GridViewColumnHeader;

     }

Now, how to get the x:Name value of GridViewColumn in the method? I can't put 'Name' property for the column in xaml, and it comes like empty string in runtime. Although I am able to get the header, still need to get x:Name value.

解决方案

When you use the x:Name syntax on an element that isn't a FrameworkElement or FrameworkContentElement, it registers the element with a NameScope. Unfortunately, you can't retrieve the name for an element, the lookup only works the other way around.

If you need to pass additional information about the DataGridColumn, a custom attached property would be an easy way of doing it.

More information about x:Name can be found on MSDN. Also, the NameScope documentation describes its behavior.

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