在Windows 10中获取子控件的UserControl

Question

我有一个由几个子控件组成的UserControl，将其称为MyUserControl 。

因此，它在其他控件中包含一个textbox作为子控件。 如果我有子textbox ，如何使MyUserControl作为父textbox ，而不仅仅是textbox所在的Grid 。

我找到了一个静态方法，但是它不起作用。

public static T GetParentOfType<T>(this Control control)
{
    const int loopLimit = 100; // could have outside method
    var current = control;
    var i = 0;

do
{
    current = current.Parent;

    if (current == null) throw new Exception("Could not find parent of specified type");
    if (i++ > loopLimit) throw new Exception("Exceeded loop limit");

} while (current.GetType() != typeof(T));

return (T)Convert.ChangeType(current, typeof(T));

}

线路current = current.Parent; 说不能将DependencyObject转换为Control

Answer 1

我只是转换为FrameworkElement而已。

 public static T GetParentOfType<T>(this FrameworkElement control)
    {
        const int loopLimit = 3; // could have outside method
        FrameworkElement current = control;
        var i = 0;

        do
        {
            current = current.Parent as FrameworkElement;

            if (current == null) throw new Exception("Could not find parent of specified type");
            if (i++ > loopLimit) throw new Exception("Exceeded loop limit");

        } while (current.GetType() != typeof(T));

        return (T)Convert.ChangeType(current, typeof(T));
    }