如图效果
一、下拉是一个PopupMenu菜单,所以动态创建一个PopupMenu
//PopupMenu菜单
var popupbbiAll = new PopupMenu(barManager1);
二、创建菜单项按钮参数列表
var listBbiAllParameter = new List<BarButtonItemParameter>
{
new BarButtonItemParameter {Caption = "删除当前的" + TotalCount +"条日志", Type = "All", Data = "DeleteCurrent"},
new BarButtonItemParameter {Caption = "删除超过三月的日志", Type = "All", Data = "DeleteThreeM"},
new BarButtonItemParameter {Caption = "删除超过一月的日志", Type = "All", Data = "DeleteOneM"},
new BarButtonItemParameter {Caption = "删除超过半月的日志", Type = "All", Data = "DeleteHalfM"},
new BarButtonItemParameter {Caption = "删除超过七天的日志", Type = "All", Data = "DeleteSevenD"},
new