private void contextMenu_ItemClick(object sender, SourcedEventArgs e)
        {
            C1RadialMenuItem item = e.Source as C1RadialMenuItem;

            if (item is C1RadialColorItem)
            {
                this.text.Foreground = ((C1RadialColorItem)item).Brush;
                txt.Text             = Strings.ContextMenuItemClickTB + " " + ((C1RadialColorItem)item).Color.ToString();
            }
            else if (item is C1RadialNumericItem)
            {
                txt.FontSize = ((C1RadialNumericItem)item).Value;
                txt.Text     = Strings.ContextMenuItemClickTB + " " + ((C1RadialNumericItem)item).Value.ToString();
            }
            else
            {
                txt.Text = Strings.ContextMenuItemClickTB + " " + (item.Header ?? item.Name).ToString();
            }
        }
        private void contextMenu_ItemOpened(object sender, SourcedEventArgs e)
        {
            C1RadialMenuItem item = e.Source as C1RadialMenuItem;

            txt.Text = Strings.RadialMenuItemOpenedTB + " " + (item.Header ?? item.Name).ToString();
        }