/// <summary>
/// 把列表转换为排好的顺序
/// </summary>
/// <param name="menuItem"></param>
/// <param name="topid"></param>
/// <returns></returns>
//public static List<T> handleSubMenu(List<T> menuItem, int topid)
//{
// var lm = new List<T>();
// foreach (var item in menuItem)
// {
// if (item.PID == topid)
// {
// var hsm = handleSubMenu(menuItem, item.MenuID);
// if (hsm.Count > 0)
// item.Childs = hsm;
// else
// item.Childs = "";
// lm.Add(item);
// }
// }
// return lm.OrderBy(o => o.MenuID).ToList();
//}
/// <summary>
/// 把列表转换为排好的顺序
/// </summary>
/// <param name="menuItem"></param>
/// <param name="topid"></param>
/// <returns></returns>
public static List <T> SubMenu(List <T> menuItem, int topid)
{
var handleSubMenu = Combitator.Fix <List <T>, int, List <T> >(f => (m, t) =>
{
var lm = new List <T>();
foreach (var item in m)
{
if (item.PID == t)
{
var hsm = f(m, item.MenuID);
if (hsm.Count > 0)
{
item.Childs = hsm;
}
else
{
item.Childs = "";
}
lm.Add(item);
}
}
return(lm);
});
return(handleSubMenu(menuItem, topid).OrderBy(o => o.MenuID).ToList());
}
/// <summary>
/// 根据子menuitem生成完整menuitem
/// </summary>
/// <param name="menuItem"></param>
/// <returns></returns>
public static List <T> CreateMenuItem(List <T> menuItems, Func <int, T> getparentmenuitem)
{
var lm = new List <T>();
var addparentmenuitem = Combitator.Fix <int, List <T> >(f => m =>
{
if (m != 0)
{
var pitem = getparentmenuitem(m);
if (!lm.Contains(pitem, new MenuDistinct <T>()) && !menuItems.Contains(pitem, new MenuDistinct <T>()))
{
lm.Add(pitem);
}
f(pitem.PID);
}
return(lm);
});
foreach (var item in menuItems)
{
addparentmenuitem(item.PID);
}
menuItems.AddRange(lm.AsEnumerable());
return(menuItems);
}