封装处理下,以后项目用到可以直接使用,比较简单. 1.首先看封装好的类 using System; using System.Data; using System.IO; using System.Text; using CSharpUtilHelpV2; using StringUtilHelp; namespace DBUtilHelpV2Plus { public static class DBToolV2Plus { /// <summary> /// 将DataTable导出到CSV
Column 列查询,如下: var dt = CommonUtil.ToDataTable(dataJson); //判断是否有当前日期数据 var systemDateTime = new CommonProperty().SystemDateTime; DataRow[] drArray = dt.Select(string.Format("COL_ActDate>='{0}' and COL_ActDate<'{1}'", systemDateTime.Date.T