C# ACCESS数据库链接

 private void button1_Click(object sender, EventArgs e)
        {          

string strConnection = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + @"E:mapSansMachine.mdb";

            OleDbConnection objConnection = new OleDbConnection(strConnection);  //建立连接  
            objConnection.Open();  //打开连接
            OleDbCommand sqlcmd = new OleDbCommand(@"select * from ParamFactValue where TestNo=10", objConnection);  //sql语句  
            OleDbDataReader reader = sqlcmd.ExecuteReader();              //执行查询 
      
            while (reader.Read())
            { //这个read调用很重要！不写的话运行时将提示找不到数据  
                //age = (int)reader.getstring(0);   //取得字段的值  

                textBox1.Text = reader["Name"].ToString();
                textBox2.Text = reader["TheValue"].ToString();

                
            }

            objConnection.Close();
            reader.Close();

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