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                        C# 在LINQ to DataSet中对分组操作执行子查询
                        
                          C# 在LINQ to DataSet中对分组操作执行子查询,相关代码:
  private void button1_Click(object sender, EventArgs e)
  {//在LINQ to DataSet中对分组操作执行子查询
  	SqlConnection MyConnection = new SqlConnection();
  	MyConnection.ConnectionString = @"Data Source =.SQLEXPRESS;Initial Catalog=Northwind;Integrated Security=True";
  	MyConnection.Open();
  	SqlCommand MyCommand = new SqlCommand("Select  * From Orders ", MyConnection);
  	DataSet MySet = new DataSet();
  	SqlDataAdapter MyAdapter = new SqlDataAdapter(MyCommand);
  	MyAdapter.Fill(MySet);
  	DataTable MyQueryTable = MySet.Tables[0];
            var MyQuery = from MyOrder in MyQueryTable.AsEnumerable()
                          orderby MyOrder.Field("ShipCity")
                          group MyOrder by MyOrder.Field("ShipCity") into g
                          select new
                          {
                              MyCity = g.Key,
                              MyMaxFreight = (from MyData in g select MyData.Field("Freight")).Max()
                           
                            - 2022-01-27 20:20:32下载
- 积分:1
 
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                        解压缩没有密码,是一个媒体播放的控件
                        
                          解压缩没有密码,是一个媒体播放的控件-decompress no password, is a broadcast media controls                         
                            - 2023-08-27 17:25:03下载
- 积分:1
 
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                        fisher
                        
                          fisher例子程序必看fisher例子程序必看fisher例子程序必看(Examples of programs fisher must-see examples of programs fisher must-see examples of procedures for must-see fisher)                         
                            - 2009-10-16 17:02:59下载
- 积分:1
 
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                        multiCore_Training
                        
                          TMS320C6678多核dsp培训文档(multiCore_Training of TMS320C6678)                         
                            - 2015-03-02 22:03:20下载
- 积分:1
 
- 
                        基于51单片机的电子琴源代码
                        
                          本设计采用STC89C52芯片组成的最小系统,结合八位按键控制音调输出,24C80存储芯片,以及扬声器构成简易电子琴。通过软件设置,使系统达到,按下控制按键,蜂鸣器发出Do,Re,Mi,Fa,So,La,Si,Do-H,八个简单的音调,能自动播放预设歌曲,实现简易电子琴系统功能。
	资源包含设计电路原理图、PCB图以及51单片机源码                         
                            - 2022-02-21 15:14:02下载
- 积分:1
 
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                        MPRGFFT
                        
                          C script for performing FFT algorithm with pruning both in input and output.                         
                            - 2012-06-09 00:28:41下载
- 积分:1
 
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                        ClientTools
                        
                          一款C++  模仿  IM 通讯的 开源代码 
请大家拍砖(Imitation of a C++ open source IM communications please Paizhuan)                         
                            - 2011-06-05 20:32:19下载
- 积分:1
 
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                        2007031716045822831
                        
                          一个简单的开机保护程序 无任何控件 全api编写 
关键字 :键盘钩子, dll注入,api函数
api操作注册表, windows消息(a simple reboot protection procedures without any controls all api prepared keyword : keyboard hook, dll implantation, api function api operate the registry, windows news)                         
                            - 2007-03-17 20:39:04下载
- 积分:1
 
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                        btp2
                        
                          linear 2 stat problem                         
                            - 2010-12-18 09:39:12下载
- 积分:1
 
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                        yuanma
                        
                          C_C++程序设计导论(第二版)附书源码(C_C++ programming design introduction (second edition) source code)                         
                            - 2013-07-05 17:08:13下载
- 积分:1