Question

C#连接access数据库失败，改修改的都修改了，但还是连不上，请各路高手指点。

Answer 1

我记得很麻烦！
这是webconfig文件里面的内容
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<appSettings>
<add key="conn" value="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=ly1.mdb;"/>
</appSettings>
<connectionStrings>
</connectionStrings>

<system.web>
<compilation debug="true" />
<authentication mode="Windows" />
</system.web>
</configuration>

Default.aspx.cs文件下
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.OleDb; 这个行是新加的

public partial class _Default : System.Web.UI.Page
{
public OleDbConnection connoled()
{
string oled = ConfigurationManager.AppSettings["conn"].ToString();
OleDbConnection myconn = new OleDbConnection(oled);
return myconn;

}
protected void Button1_Click(object sender, EventArgs e)
{
OleDbConnection myconn = connoled();
myconn.Open();

}
}