ViewBag检测最后一项MVC

Question

我有ViewBag中的对象列表。有什么办法来检查该项是否是Razor视图中该ViewBag的最后一个？

@if (ViewBag.List != null) 
{ 
    foreach(var item in ViewBag.List) 
    { 
     if(item[0] == **LAST ITEM**) // here I want to check if it is the last item in my ViewBag.List 
     { 
      /* do stuff */ 
     } 
    } 
} 

编辑：我店有多年的作为一个匿名对象

public object GetYears(){ 
    return result.Distinct().OrderBy(i => i.startYear).Select(c => new[] 
       { 
        c.startYear 
       }); 
} 

ViewBag.List = GetYears(); 

Answer 1

如果ViewBag.List工具IEnumerable<T>你可以使用Last() 您将需要cast列表中你ViewBag以的IEnumerable访问方法或索引访问，我会假设startYear是一个int。

@if (ViewBag.List != null) 
{ 
    var last_item = (ViewBag.List as IEnumerable<int[]>).Last(); 
    foreach(var item in ViewBag.List) 
    { 
     if(item[0] == last_item[0]) // here I want to check if it is the last item in my ViewBag.List 
     { 
      /* do stuff */ 
     } 
    } 
} 

或者您也可以通过index

@if (ViewBag.List != null) 
{ 
    IEnumerable<int[]> viewbag_list = (ViewBag.List as IEnumerable<int[]>); 
    var last_item = viewbag_list[viewbag_list.Count()-1]; 
    foreach(var item in ViewBag.List) 
    { 
     if(item[0] == last_item[0]) // here I want to check if it is the last item in my ViewBag.List 
     { 
      /* do stuff */ 
     } 
    } 
}