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C# How to update and add data to Excel table using Ado.Net

Jan 13, 2017 pm 04:58 PM

本文实例讲述了C#使用Ado.Net更新和添加数据到Excel表格的方法。分享给大家供大家参考。具体分析如下:

微软NET提供了一个交互的方法,通过使用ADO.NET与Microsoft Office程序。内置的OLEDB提供可以用来操纵Excel的。xls电子表格。您可以在Excel中创建一个命名的范围确定表名,我们还需要列标题,如果电子表格中不包含列标题,那么你就需要将它们添加。

如何在Excel中创建一个命名的范围? 
随着电子表格打开,选择你希望包括数据查询,包括标题。 
选择“插入”菜单,然后命名并选择“定义”。 
输入表的名称,然后单击“添加”。 
关闭对话框并保存工作簿。

下面的例子演示了如何更新记录和插入数据,通过OLEDB使用常规的SQL命令和执行命令。

using System;
using System.Data.OleDb;
namespace ConsoleApplication1
{
 class Program
 {
  static void Main()
  {
   string connectionString = "Provider=Microsoft.Jet.OleDb.4.0; data source=c:\\offices.xls; Extended Properties=Excel 8.0;";
   string selectString = "INSERT INTO Office VALUES('12345′, 'Acme Inc', 'Acme Way, CA', 'Testy McTest', '01234-987654′)"; //Office is the named range.
   OleDbConnection con = new OleDbConnection(connectionString);
   OleDbCommand cmd = new OleDbCommand(selectString, con);
   try
   {
    con.Open();
    cmd.ExecuteNonQuery();
   }
   catch (Exception ex)
   {
    Console.WriteLine(ex.Message);
   }
   finally
   {
    con.Dispose();
   }
  }
 }
}
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