.net - BringToFront in WPF

Question

I need to bring to front a custom control in WPF.

pseudoCode

OnMouseDown()
{
    if (this.parent != null)
        this.parent.BringToFront(this);
}

I know, I know that there are a ZIndex, but still don't understand how to replace the simple WinForm BringToFront to parent.SetZIndex(this, ?MaxZIndex(parent)? + 1) ?

Perhaps there is a better way of doing it in the such a cool thing like WPF?!..

Answer 1

Here is an extension function that adds the method BringToFront functionality to all FrameworkElements that are contained in a Panel.

  public static class FrameworkElementExt
  {
    public static void BringToFront(this FrameworkElement element)
    {
      if (element == null) return;

      Panel parent = element.Parent as Panel;
      if (parent == null) return;

      var maxZ = parent.Children.OfType<UIElement>()
        .Where(x => x != element)
        .Select(x => Panel.GetZIndex(x))
        .Max();
      Panel.SetZIndex(element, maxZ + 1);
    }
  }