基础提供程序无法打开-WPF和实体框架
[英]The underlying provider failed to open - WPF and Entity FrameWork
问题描述
I registered website on somee.com and had uploaded my database. 
我在somee.com上注册了网站，并上传了我的数据库。 They provided me connection string below: 他们在下面为我提供了连接字符串：
workstation id=nrcsadb.mssql.somee.com;packet size=4096;user id=DuaZoya_SQLLogin_1;pwd=passwordhere;data source=nrcsadb.mssql.somee.com;persist security info=False;initial catalog=nrcsadb
Now as i am using Entity FrameWork so i am writing these lines below to connect my destop application to that database on server. 现在，由于我使用的是Entity FrameWork，因此我在下面编写了以下几行以将我的destop应用程序连接到服务器上的该数据库。
<connectionStrings>
<add name="nrcsaEntities" connectionString="metadata=res://*/nrcsaEntities.csdl|res://*/nrcsaEntities.ssdl|res://*/nrcsaEntities.msl;provider=System.Data.SqlClient;provider connection string="user=Dua_SQLLogin_1;password=passwordhere;data source=nrcsadb.mssql.somee.com;initial catalog=nrcsadb;integrated security=False;multipleactiveresultsets=True;App=EntityFramework"" providerName="System.Data.EntityClient" />
</connectionStrings>
This above connection string is generating exception that: Main Window The underlying provider failed to open 上面的连接字符串正在生成以下异常： Main Window The underlying provider failed to open
How to solve this problem. 如何解决这个问题呢。 Can anyone help me. 谁能帮我。 Thank You ! 谢谢 ！
1 个解决方案
解决方案1
0 2014-01-07 09:27:22
可能未设置System.Data.Entity.dll引用尝试使用providerName =“ System.Data.SqlClient”
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