ConnectionString 属性尚未初始化

[ggjjjg]

我的数据层所有方法都是用的同一个ConnectionString
为什么有的方法没问题，而调用有些方法时就提示这个错误“ConnectionString 属性尚未初始化”
我的WEB.CONFIG
<connectionStrings>
<add name="ConnectionString" connectionString="Data Source =10.11.16.37;uid=sa;pwd=sa123456;database=beingclub;Max Pool Size = 512" providerName="System.Data.SqlClient"/>
</connectionStrings>

.cs文件用
string Connectionstring = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
谁知道是什么问题？

[zpcoder]

Data Source =10.11.16.37;uid=sa;pwd=sa123456;database=beingclub;Max Pool Size = 512

登陆失败了，再看看数据库名，用户及密码

[QQ306832666]

web.config 这样写就对的 如果 用户及密码也对的话
就是别的问题出错了

[jiang_jiajia10]

public static readonly string Connectionstring = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;

[Hertz_liu]

<add name="ConnectionString" connectionString="Data Source =10.11.16.37;uid=sa;pwd=sa123456;database=beingclub;Max Pool Size = 512" providerName="System.Data.SqlClient"/>

好像我有一次也是用name不行，然后我把它改成key就可以了，你试试：
<add key="ConnectionString" connectionString="Data Source =10.11.16.37;uid=sa;pwd=sa123456;database=beingclub;Max Pool Size = 512" providerName="System.Data.SqlClient"/>

[jimu8130]

既然是共用而且变化的可能性不大，建议使用静态public变量来存储，同时相应的建立Connection的程序也得给出防止connectstr为空的情况（即给出默认值）

[xhan2000]

Connection对象的问题，楼主好像没描述出来具体原因所在

[zhangzhicong]

private string constring = ConfigurationManager.ConnectionStrings["constring"].ToString();

[che2piaopiao]

<connectionStrings>
<add name="ConnectionString" connectionString="Data Source =10.11.16.37;uid=sa;pwd=sa123456;database=beingclub;Max Pool Size = 512" providerName="System.Data.SqlClient"/>
</connectionStrings>


只要这一段就ok了:
<add name="ConnectionString" connectionString="Data Source =10.11.16.37;uid=sa;pwd=sa123456;database=beingclub;Max Pool Size = 512" providerName="System.Data.SqlClient"/>

连的时候:
SqlConnection conn = new SqlConnection(ConfigurationManager.AppSettings["constr"]);


OK?

[tangdayong123]

[Quote=引用 8 楼 che2piaopiao 的回复:]
<connectionStrings>
<add name="ConnectionString" connectionString="Data Source =10.11.16.37;uid=sa;pwd=sa123456;database=beingclub;Max Pool Size = 512" providerName="System.Data.SqlClient"/>
</connectionStrings>


只要这一段就ok了:
<add name="ConnectionString" connectionString="Data Source =10.11.16.37;uid=sa;pwd=sa123456;database=beingclub;Max Pool Size = 512" providerName="System.Dat…
[/Quote]
感觉这样应该可以吧 学习了

[shadom2008]

public static readonly string Connectionstring = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;