using System; using System.IO; using System.Data; using System.Collections; using System.Data.OleDb; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; /// <summary> /// Excel操作类 /// </summary> /// Microsoft Excel 11.0 Obj
在数据库时候我设计了学生的分数为nvarchar(50),是为了在从TXT文件中读取数据插入到数据库表时候方便,但是在后期由于涉及到统计问题,比如求平均值等,需要int类型才可以,方法是:Convert(int,字段名).例如:select avg(Convert(int,M_Score)) from temp 建立视图,将视图当表示用 CREATE VIEW temp AS select StudentId, MAX(StudentScore) as M_Score from T_Studen
using System; using System.Collections.Generic; using System.Text; using System.Data; using System.Windows.Forms; using System.Reflection; namespace DMS { /// <summary> /// C#操作Excel类 /// </summary> class ExcelOperate { //法一 //public bool Data
1.通用导出Excel功能. 2.将 MSHFlexGrid数据导出到Excel文件通用功能. 3.具体代码如下: '将下列代码保存到一模块文件中,调用方法:Export fgrid1,cd1 Public Sub Export(flexgridname As MSHFlexGrid, CD1 As CommonDialog) Dim xlApp As Object 'Excel.Application Dim xlBook As Object 'Excel.Workbook Dim xlShe