关于linq：无法在C＃中隐式转换类型’System.Collections.Generic.List

Cannot implicitly convert type 'System.Collections.Generic.List in C#

嗨，我是编程新手，请您帮助我：

我在" To.List()"中遇到错误
错误1无法将类型'System.Collections.Generic.List'隐式转换为'System.Collections.Generic.List

我的代码是：

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List<IncByYrMonthModel> GroupedList = (from p in incidentsViewModel
group p by new
{
month = p.DateClosed.Value.Month,
year = p.DateClosed.Value.Year
} into d
select new
{
d.Key.month,
d.Key.year,
count = d.Count()
}).ToList();
return GroupedList;

我的模特是：

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public class IncByYrMonthModel
{
public string Year { get; set; }
public string Month { get; set; }
public string Total { get; set; }
}

更新的代码

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public List<IncByYrMonthModel> GetYrMonth2(HttpSessionStateBase session, int id, int _StrYear)
{
List<IncidentsModel> incidentsViewModel = ViewModelService.Fetch<List<IncidentsModel>>(session, id);

List<IncByYrMonthModel> GroupedList = (from p in incidentsViewModel
group p by new
{
month = p.DateClosed.Value.Month,
year = p.DateClosed.Value.Year
} into d
select new IncByYrMonthModel
{
Month = d.Key.month,
Year = d.Key.year,
Total = d.Count()
});

return GroupedList;
}

你应该改变这个

1	select new { d.Key.month, d.Key.year, count = d.Count() }

对此

1	select new IncByYrMonthModel { Month = d.Key.month, Year = d.Key.year, Total = d.Count() }

第一种情况的问题是，您有一个匿名类型的对象序列，您尝试将其转换为IncByYrMonthModel列表，这是不可能的。