由于使用DevExpress 的控件,需要在PopupMenu动态添加项。根据PopupMenu的后台代码,自己写怎么添加都不显示,不知道原因何在。代码如下:
BarButtonItem tBBI = new BarButtonItem();
tBBI.Name = "Item1";
tBBI.Caption = "myItem";
this.barManager1.Items.Add(tBBI);
this.pPop.LinksPersistInfo.Add(new LinkPersistInfo(tBBI));
后来无意中,发现PopupMenu有一个AddItem方法,用了之后,可以了。很高兴。但问题接踵而至。按钮中的项,不能分组。继续找原因。知道发现这篇博客:
http://www.cnblogs.com/supermap/archive/2006/07/01/440418.html
很受启发,尤其是关键代码
public PopupMenu CreateContextMenu()
{
PopupMenu contextMenu = new PopupMenu();
contextMenu.Popup += new EventHandler(ContextMenuPopupHandler);
foreach (object item in buildItems)
{
if (item is BarItem)
{
bool beginGroup = false;
beginGroup = (bool)(item as BarItem).Tag;
//contextMenu.LinksPersistInfo.AddRange(new LinkPersistInfo[] { new LinkPersistInfo((item as BarItem), beginGroup) });
BarItem barItem = item as BarItem;
AddMenuItem(barManager, barItem);
//用LinksPersistInfo右键菜单不出来
//contextMenu.LinksPersistInfo.Add(new LinkPersistInfo(barItem, beginGroup));
BarItemLink itemLink = contextMenu.AddItem(barItem);
itemLink.BeginGroup = beginGroup;
}
}
contextMenu.Manager = barManager;
return contextMenu;
}
学习了!