public void ProcessCaption()
{
if (captionDiv != null)
{
captionDiv.remove();
captionDiv = null;
}
if (!string.IsNullOrWhiteSpace(Caption))
{
captionDiv = Div(IsSmallItem ? "ribbonbuttonsmallcaption" : "ribbonbuttoncaption");
captionDiv.innerHTML = Caption;
Content.AppendChild(captionDiv);
}
}