WPF Grid rowDefinition Delete Problem

int indx = Grid.GetRow(sender as Button);
int row = layOut.RowDefinitions.Count;
List<UIElement> elementsToRemove = new List<UIElement>();
foreach (UIElement element in layOut.Children)
{
    var d = Grid.GetRow(element);
    if (Grid.GetRow(element) == Grid.GetRow(sender as Button))
        elementsToRemove.Add(element);
}
foreach (UIElement element in elementsToRemove)
    layOut.Children.Remove(element);


layOut.RowDefinitions.RemoveAt(indx-1);