C#中RDLC合并两个列的值

使用 & 符号连接 =Fields!ID.Value & Fields!Name.Value…

public static DataTable UniteDataTableColumns(DataTable dt, String newColumnName, string ColumnName1, string ColumnName2) { //汇总的表达式 string expression = ""; expression = String.Format("{0}+'('+{1}+')'", ColumnName1, ColumnName2); //增加汇…

在GridView的RowDataBound事件中获取某行某列的值！

protected void gdvOrders_RowDataBound(object sender, GridViewRowEventArgs e) { if (e.Row.RowType == DataControlRowType.DataRow) { DataRowView drv = (DataRowView)e.Row.DataItem ; if (drv.Row["Status"].ToS…

C#中获取DataTable某一列的值转换为集合

直接使用 //Linqvar l1 = (from d in dt.AsEnumerable() select d.Field<int>("ID")).ToList();//lambdavar l2 = dt.AsEnumerable().ToList().Select(x => x.Field<int>("ID")).ToList(); //使用orderby关键字进行排序 List<string> listJobTitl…

php中有关合并某一字段键值相同的数组合并

<?php function combine($array,$start,$key,$newkey){ static $new; //静态变量 foreach($array as $k=>$v){ if($v[$key]==$start){ $new[$v[$newkey]][] = $v; unset($array[$k]); continue; } } sort($array); if(count($array)!==0){ combine($array,$array[0][$key],$…

筛选出dataframe中全为数字的列的值

In [1]: import pandas as pd In [2]: import numpy as np In [3]: students = [ ('jack', 'Apples' , 34) , ...: ('Riti', 'Mangos' , 31) , ...: ('Aadi', 'Grapes' , 30) , ...: ('Sonia', 'Apples', 32) , ...: ('Lucy', 'Mangos' , 33) , ...: ('Mike', 'Apples' ,…