zoukankan      html  css  js  c++  java
  • 一条结合where、group、orderby的linq语法

    DataTable dt = (from x in dsResult.Tables[0].AsEnumerable()

                                    where DataTrans.CBoolean(x["IsChecked"]) == true

                                    group x by new

                                    {

                                        no = x.Field<string>("NO"),

                                        ptno = x.Field<string>("PTNO"),

                                        ver = x.Field<int>("VER"),

                                        kd = x.Field<string>("KD"),

                                        que_da = Convert.ToDateTime(x.Field<DateTime>("QUE_DA").ToString("yyyy/MM/dd"))

                                    } into g

                                    orderby g.Key.no,g.Key.ptno,g.Key.ver,g.Key.kd,g.Key.que_da

                                    select new

                                    {

                                        qty = g.Sum(x => Convert.ToInt32(x["QUE_QTY"])),

                                      stock=g.Sum(x=>Convert.ToInt32(x["STOCK"])),

                                      no=g.Key.no ,

                                      ptno=g.Key.ptno,

                                      ver=g.Key.ver,

                                      kd=g.Key.kd,

                                      que_da=g.Key.que_da

                                    }).ConvertDataTable();

  • 相关阅读:
    jQuery 源码基本框架
    jQuery 源码细读 -- $.Callbacks
    Excel等外部程序点击链接会带上IE信息的bug
    &nbsp; 与 空格的区别
    前端模板文件化jQuery插件 $.loadTemplates
    客户端渲染的页面能否被搜索引擎完整收录呢?
    javascript 函数声明问题
    JavaScript 继承机制小记
    link与@import
    tcp_udp
  • 原文地址:https://www.cnblogs.com/sky6699/p/4882231.html
Copyright © 2011-2022 走看看