小工具集

    public static class ExtendMethod
    {
        public static DataTable SimpleLinqToTable<T>(this IEnumerable<T> collection)
        {
            DataTable dt = new DataTable();
            if (collection.Count() <= 0)
            {
                return dt;
            }
            PropertyInfo[] pros = collection.First().GetType().GetProperties();
            foreach (PropertyInfo pro in pros)
            {
                string columnName = pro.Name;
                Type type = pro.PropertyType;
                dt.Columns.Add(columnName, type);
            }
            IEnumerator<T> col = collection.GetEnumerator();
            while (col.MoveNext())
            {
                T obj = col.Current;
                PropertyInfo[] tpros = obj.GetType().GetProperties();
                List<object> objs = new List<object>();
                foreach (PropertyInfo pro in pros)
                {
                    objs.Add(pro.GetValue(obj, null));
                }
                dt.Rows.Add(objs.ToArray());
            }
            return dt;

        }
    }