嗨存在每一个我收到以下错误:“‘ConfigurationManager中’这个名字并不在当前的背景下存在”“ConfigurationManager中”这个名字并不在当前的背景下
// namespaces
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlClient;
using System.Configuration;
using System.IO;
namespace Database1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
public static string GetConnectionString(string strConnection)
{
//variable to hold our connection string for returning it
string strReturn = "";
//check to see if the user provided a connection string name
//this is for if your application has more than one connection string
if (!string.IsNullOrEmpty(strConnection)) //a connection string name was
{
//get the connection string by the name provided
strReturn = ConfigurationManager.ConnectionStrings[strConnection].ConnectionString;
}
else //no connection string name was provided
{
//get the default connection string
strReturn = ConfigurationManager.ConnectionStrings["YourConnectionName"].ConnectionString;
}
//return the connection string to the calling method
return strReturn;
}
}
}
不,我没有添加此引用和我我无法在添加引用标签中找到该引用如何找到它? – user1312412 2012-04-09 11:09:26
不确定,但不应该消息是类型或命名空间'ConfigurationManager'这种情况下找不到? – V4Vendetta 2012-04-09 11:15:30
你使用的是什么版本的Visual Studio和.NET Framework? – Joshua 2012-04-09 11:37:49