原文:c# datatable增加列并赋值

DataView dv DataObj.GetBmfzr .Tables .DefaultView dv.Sort bmbh DataTable dt ds.Tables dt.Columns.Add bkzz ,typeof string foreach DataRow rs in dt.Rows string fzr DataRowView drv dv.FindRows new object ...

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C# Datatable 添加

DataTable dt = new DataTable("Datas"); DataColumn dc = null; //dt新增列 dc=dt.Columns.Add("id", Type.GetType("System.Int32")); //课件id dc ...

Tue Nov 07 20:52:00 CST 2017 0 10346
C# Datatable 添加

转 : https://blog.csdn.net/weixin_30639719/article/details/95185742 ...

Fri Apr 30 23:05:00 CST 2021 0 895
C# Datatable 添加

DataTable dt = new DataTable("Datas"); DataColumn dc = null;//dt新增列dc=dt.Columns.Add("id", Type.GetType("System.Int32")); //课件iddc ...

Mon Dec 09 19:40:00 CST 2019 0 1853
C# DataTable 某一求和

参考链接 https://blog.csdn.net/Mj_kk/article/details/90487114 列为数字类型 double total= Convert.ToDouble(datatable.Compute("SUM(需要求和的参数 ...

Tue Apr 14 22:17:00 CST 2020 0 1692
c#去除DataTable

网上搜了好多,没找到能用的,自己写一个,有发现错误的给我留言。 ...

Wed Dec 12 00:06:00 CST 2018 0 1317
c# DataTable获取某个的集合

https://blog.csdn.net/wangtao19932008/article/details/105455314 获取第一数据集合 dt是DataTable var Array = from DataRow dr in dt.Rows select dr[0]; //需要引入 ...

Tue Apr 06 04:28:00 CST 2021 0 379
C# DataTable分组方式

DataTable dtGroupBy = dt_com_sub.AsEnumerable().GroupBy(r => new { BudgetSubjectID = r["BudgetSubjectID"], Subjectid = r["Subjectid"], ItemNo = r ...

Fri Oct 22 00:40:00 CST 2021 0 1241
 
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