/// <summary>
/// Button click to handler for removing a tag from an item
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void RemoveTagButtonClick(object sender, RoutedEventArgs e)
{
Control control = (Control)sender;
DefaultScope.Tag tag = (DefaultScope.Tag)control.Tag;
item.RemoveTag(tag);
}