利用反射把Datatable转换成List

/// <summary>         /// 利用反射将Datatable转换为List<T>对象         /// </summary>         /// <typeparam name="T">集合</typeparam>         /// <param name="dt"> datatable对象</param>         /// <returns></returns>         public List<T> DataTableToList<T>(DataTable dt) where T : new ()         {             //定义集合             List<T> ts = new List<T>();             //定义一个临时变量             string tempName = string .Empty;             //遍历dataTable中的数据行             foreach (DataRow dr in dt.Rows)             {                 T t = new T();                 //获得此模型的公共属性                 PropertyInfo[] propertys = t.GetType().GetProperties();                 //遍历该对象的所有属性                 foreach (PropertyInfo pi in propertys)                 {                     tempName = pi.Name; //将属性名称赋值给临时变量                     //检查datatable是否包含此列(列名==对象的属性名)                     if (dt.Columns.Contains(tempName))                     {                         //取值                           object value = dr[tempName];                         //如果非空，则赋给对象的属性                         if (value != DBNull.Value)                         {                             //这里添加判断的原因:比如double转folat不能隐式转换,而枚举类型又不能使用Convert.ChangeType                             if (pi.PropertyType.IsEnum)                                 {                                     pi.SetValue(t, value, null );                                  }                                 else                                 {                                 //ChangeType属于强转可能存在数据丢失,但是pi.PropertyType是对应你类成员的类型                                 pi.SetValue(t, Convert.ChangeType(value, pi.PropertyType), null );                                  }                                                          }                     }                 }                 //对象添加到泛型集合中                 ts.Add(t);             }             return ts;           }