datatableToObject 方法

#region DataTableToObjList
        /// <summary>
        /// DataTable数据转成Entity
        /// </summary>
        /// <typeparam name="T">Entity</typeparam>
        /// <param name="ds">数据集</param>
        /// <param name="tbName">表名</param>
        /// <returns></returns>
       public static List<T> DataTableToObjList<T>(DataTable dt) where T : new()
       {
           List<T> list = new List<T>();
           PropertyInfo[] propinfos = null;

           foreach (DataRow dr in dt.Rows)
           {

               T entity = new T();
               //初始化propertyinfo
               if (propinfos == null)
               {
                   Type objtype = entity.GetType();
                   propinfos = objtype.GetProperties();
               }

               //填充entity类的属性

               foreach (PropertyInfo propinfo in propinfos)
               {
                   foreach (DataColumn dc in dt.Columns)
                   {
                       if (dc.ColumnName.ToUpper().Equals(propinfo.Name.ToUpper()))
                       {

                           string v = null;
                           v = dr[dc.ColumnName].ToString();
                           if (!String.IsNullOrEmpty(v))
                           {
                               if (propinfo.PropertyType.Equals(typeof(DateTime?)))
                               {
                                   propinfo.SetValue(entity, (System.Nullable<DateTime>)DateTime.Parse(v), null);
                               }
                               else if (propinfo.PropertyType.Equals(typeof(System.Boolean?)))
                               {
                                   propinfo.SetValue(entity, System.Boolean.Parse(v), null);
                               }
                               else if (propinfo.PropertyType.Equals(typeof(int?)))
                               {
                                   propinfo.SetValue(entity, Convert.ToInt32(v), null);

                               }
                               else
                               {
                                   propinfo.SetValue(entity, Convert.ChangeType(v, propinfo.PropertyType), null);

                               }
                               break;
                           }

                       }
                   }
               }
               list.Add(entity);
           }
           return list;
       }

        #endregion

只要做判断都是可以的:)