/// <summary>
/// Creates the button without command binding.
/// </summary>
/// <param name="itemsControl">The items control.</param>
/// <param name="items">The nested items.</param>
/// <param name="header">The header.</param>
/// <param name="icon">The icon.</param>
/// <param name="largeIcon">The large icon.</param>
/// <returns>Split button.</returns>
/// <exception cref="ArgumentNullException">The <paramref header="itemsControl"/> is <c>null</c>.</exception>
/// <exception cref="ArgumentException">The <paramref header="header"/> is <c>null</c> or whitespace.</exception>
private static SplitButton CreateSplitButtonWithoutCommandBinding(this ItemsControl itemsControl, List <IRibbonItem> items, string header, string icon, string largeIcon)
{
Argument.IsNotNull("itemsControl", itemsControl);
Argument.IsNotNullOrWhitespace("header", header);
var button = new SplitButton();
button.Header = header;
button.Icon = icon;
button.LargeIcon = largeIcon;
foreach (var ribbonItem in items)
{
button.AddRibbonItem(ribbonItem);
}
itemsControl.Items.Add(button);
return(button);
}