将按钮从包装面板添加到按钮数组

Question

Is there a way to add buttons from a specific wrappanel to an array or list in code? I tried the code below, but it doesn't work:

foreach(Button b in nameOfWrappanel)
{
    list.Add(b);
}

Answer 1

You have to specify wrappanel.children to access its child.

foreach (Button b in nameOfWrappanel.Children)
{
    list.Add(b);
}

Answer 2

您可以使用Linq：

var buttons = myWrapPanel.Children.OfType<Button>().ToList();

Answer 3

Since the Children property of a Panel returns a UIElementCollection that may contain any type of UIElement objects, you could use the OfType LINQ extension method to only retrive the Button elements:

foreach (Button b in nameOfWrappanel.Children.OfType<Button>())
{
    list.Add(b);
}