public override string FormatMnemonic(Operation operation)
{
var attribute = operation.GetAttribute<DescriptionAttribute>();
if (attribute != null)
{
string description = attribute.Description;
return string.Format("<span title=\"{2}: {0}\">{1}</span>",
attribute.Description.EscapeXml(),
operation.ToString().ToLowerInvariant(),
operation);
}
return base.FormatMnemonic(operation);
}