C# List<T>常用操作

1、List<T>之间的转换

((List<object>)sourceList).Select(n => (T)n).ToList()；

2、DataTable中的某一列转为List<T>

(from r in dataTable.AsEnumerable() select r.Field<string>("datname")).ToList<string>();

(from r in dataTable.AsEnumerable() select r.Field<int>("fid")).ToList<int>()