C# .net List 转datatable

    /// 

    /// 讲list集合转换成datatable
    /// 
    /// 
    /// 
    public static System.Data.DataTable ListToDataTable(IList list)
    {
        System.Data.DataTable result = new System.Data.DataTable();
        if (list.Count > 0)
        {
            PropertyInfo[] propertys = list[0].GetType().GetProperties();
            foreach (PropertyInfo pi in propertys)
            {
                //获取类型
                Type colType = pi.PropertyType;
                //当类型为Nullable<>时
                if ((colType.IsGenericType) && (colType.GetGenericTypeDefinition() == typeof(Nullable<>)))
                {
                    colType = colType.GetGenericArguments()[0];
                }
                result.Columns.Add(pi.Name, colType);
            }
            for (int i = 0; i < list.Count; i++)
            {
                ArrayList tempList = new ArrayList();
                foreach (PropertyInfo pi in propertys)
                {
                    object obj = pi.GetValue(list[i], null);
                    tempList.Add(obj);
                }
                object[] array = tempList.ToArray();
                result.LoadDataRow(array, true);
            }
        }
        return result;
    }