/// <summary>
/// 重写ComboBoxItem之后，该方法需重写
/// </summary>
/// <returns></returns>
protected override DependencyObject GetContainerForItemOverride()
{
var item = new MyComboBoxItem();
item.OnClickHandler += Item_OnClickHandler;
return(item);
}
private void Item_OnClickHandler(object sender, SetFontFormatEventArgs <object> e)
{
MyComboBoxItem item = sender as MyComboBoxItem;
this.SetFontFormatHandler(this, SetFontFormatEventArgs <object> .SetFontFormat(item.Content));
}