'WebconfigurationManager' 怎么说不存在？

[zqdezqde]

我从sql 2000升级到了2005， 因此webconfig同时也要修改，修后asp.net程序也修改了，但是报错说WebconfigurationManager不存在，之前我并没有用WebconfigurationManager。应该怎么添加相应的操作？

修改前
<add key="connectionstring" value="server=.;database=aa;uid=sa;pwd=123"/>

修改后
<add name="NorthwindConnectionString" connectionString="DataSource=.;Initial Catalog=aa;User ID=sa;Password=123 " providerName="System.Data.SqlClient"/>

c#修改前
using System;
using System.Data;
using System.Configuration;
using System.Collections;
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.Web.Configuration;
using System.Data.SqlClient;

string strConn = ConfigurationSettings.AppSettings["connectionstring"];
SqlConnection conn=new SqlConnection(strConn);
string strSQL = "proc_SearchCompanyKeyWord";

c#修改后
using System;
using System.Data;
using System.Configuration;
using System.Collections;
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.Web.Configuration;
using System.Data.SqlClient;

string strConn = WebconfigurationManager.ConnectionStrings["NorthwindconnectionString"].connectionString;
SqlConnection conn=new SqlConnection(strConn);
string strSQL = "proc_SearchCompanyKeyWord";

现在报错说WebconfigurationManager不存在，该怎样处理？

[堆代码的爱因斯坦]

ConfigurationManager行吗？

[堆代码的爱因斯坦]

using System.Web.Configuration;
using System.Configuration;

[qiudong_5210]

[Quote=引用 1 楼 jayinit 的回复:]

ConfigurationManager行吗？
[/Quote]

+1
同意楼上的

[yue547283947]

WebconfigurationManager ? 没用过 你是不是没添加引用啊？


ConfigurationManager 用这个吧 跟你那个用法一模一样

[丰云]

using System.Web.Configuration;


==>>

using System.Configuration;

[zqdezqde]

我改成string strConn = ConfigurationManager.ConnectionStrings["NorthwindconnectionString"].connectionString;
还是出错，提示'System.Configuration.ConnectionStringSettings' does not contain a definition for 'connectionString'

[qiudong_5210]

ConnectionString

[xuexiaodong2009]

[Quote=引用 7 楼 qiudong_5210 的回复:]

ConnectionString
[/Quote]同意，注意大小写

[zhangyong361055720]

添加应用 System..Web.Configuration
然后，后台using System..Web.Configuration;
就可以用configurationManage.ConnectionString[];

[子夜__]

Bin文件右键 添加System.Configuration

页面using System.Configuration;