练习扩展Linq to sql 生成的 datacontext 类

 

当我们写的存储过程过于复杂时，如果直接把它拖到Linq to sql 的可视化界面时，它显示的返回值是Int 类型，这是就需要我们自定义类来接收返回的记录行

 

代码如下：

 

using System.Data.Linq;
using System.Data.Linq.Mapping;
using System.Data;
using System.Collections.Generic;
using System.Reflection;
using System.Linq;
using System.Linq.Expressions;
using System.ComponentModel;
using System;

namespace LinqDAL
{
    public partial class CMSDataContext
    {
        /// <summary>
        /// 得到公司的评论
        /// </summary>
        /// <param name="companyId">公司ID</param>
        /// <param name="beginNumber">分页的开始编号，最新值为1</param>
        /// <param name="endNumber">分页的结束编号，最新值为1</param>
        /// <param name="totalRecordCount">总评论数</param>
        /// <returns></returns>
        [Function(Name = "dbo.proc_GetSingleCompanyComment")]
        public IEnumerable<Company_CommentList> GetCommentByCompanyId([Parameter(DbType = "Int")] int companyId, [Parameter(DbType = "Int")] int beginNumber, [Parameter(DbType = "Int")] int endNumber, [Parameter(DbType = "Int")] ref int totalRecordCount)
        {
            IExecuteResult result = this.ExecuteMethodCall(this, ((MethodInfo)(MethodInfo.GetCurrentMethod())), companyId, beginNumber, endNumber, totalRecordCount);
            totalRecordCount = ((int)(result.GetParameterValue(3))); /* 得到第4个参数的值 */
            return ((IEnumerable<Company_CommentList>)(result.ReturnValue));
        }
    }
}

 

等待更新...