Question

aspnet EF框架获取数据总条数总是返回0

aspnet EF框架获取数据总条数总是返回0
代码如下
public static int GetTotle(int C)
{
TopWebDataClassesDataContext con = new TopWebDataClassesDataContext();
return con.top_goods.Where(r => r.CC == C).ToList().Count();
}
返回值一直为0怎么破？？哪里出了问题？
con.top_goods.Where(r => r.CC == C).ToList();是有数据返回的

Answer 1

：DataTable dt = new DataTable(); DataSet ds = new DataSet(); dt.Rows.Count; ds.Tables[0].Rows.Count;