C# 在 WPF 中循环遍历 StackPanel 子项
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Looping through StackPanel children in WPF
提问by user1590636
I have a StackPanelthat is full of controls, I am trying to loop through the elements and get their Names, but it seems that I need to cast each element to its type in order to access its Nameproperty.
我有一个StackPanel充满控件的控件，我试图遍历元素并获取它们的名称，但似乎我需要将每个元素转换为其类型才能访问其Name属性。
But what if I have a lot of different types in the StackPanel and I just want to get the elements name?
但是如果我在 StackPanel 中有很多不同的类型并且我只想获取元素名称怎么办？
Is there a better way to do that?
有没有更好的方法来做到这一点？
Here is what I've tried:
这是我尝试过的：
foreach (object child in tab.Children)
{
UnregisterName(child.Name);
}
采纳答案by Henk Holterman
It should be enough to cast to the right base class.
Everything that descends from FrameworkElementhas a Name property.
转换到正确的基类应该足够了。所有的后代FrameworkElement都有一个 Name 属性。
foreach(object child in tab.Children)
{
string childname = null;
if (child is FrameworkElement )
{
childname = (child as FrameworkElement).Name;
}
if (childname != null)
...
}
回答by Clemens
You may just use the appropriate type for the foreach loop variable:
您可以只为 foreach 循环变量使用适当的类型：
foreach (FrameworkElement element in panel.Children)
{
var name = element.Name;
}
This works as long as there are only FrameworkElementderived controls in the Panel. If there are also others (like derived from UIElementonly) you may write this:
只要FrameworkElementPanel中只有派生控件，这就会起作用。如果还有其他人（例如UIElement仅派生自），您可以这样写：
using System.Linq;
...
foreach (var element in panel.Children.OfType<FrameworkElement>())
{
var name = element.Name;
}
回答by Marc
Using LINQ:
使用 LINQ：
foreach(var child in tab.Children.OfType<Control>)
{
UnregisterName(child.Name);
}
