如何从两个连接字符串中选择？

Question

大家下午好，我遇到了一个问题，从使用C＃和Linq to Entities的两个连接字符串中进行选择。目前我有两个连接字符串，它们是：

<add name="GameHutDBEntities1" connectionString="metadata=res://*/GameHutModel.csdl|res://*/GameHutModel.ssdl|res://*/GameHutModel.msl;provider=System.Data.SqlClient;provider connection string=&quot;Data Source=EMMANUEL-PC\SQLEXPRESS;Initial Catalog=GameHutDB;user id=GameHutAdmin; password=123;MultipleActiveResultSets=True&quot;" providerName="System.Data.EntityClient" /> 
<add name="GameHutDBEntities2" connectionString="metadata=res://*/GameHutModel.csdl|res://*/GameHutModel.ssdl|res://*/GameHutModel.msl;provider=System.Data.SqlClient;provider connection string=&quot;Data Source=EMMANUEL-PC\SQLEXPRESS;Initial Catalog=GameHutDB;user id=test; password=1234;MultipleActiveResultSets=True&quot;" providerName="System.Data.EntityClient" /> 

我有两个角色，分别是Admin和Clerk。我如何允许管理员使用第一个连接字符串登录，而职员将使用第二个连接字符串登录？

Answer 1

从this answer改编：

string connString; 

if(IsAdmin(user)) 
    connString = ConfigurationManager.ConnectionStrings["GameHutDBEntities1"]; 
else 
    connString = ConfigurationManager.ConnectionStrings["GameHutDBEntities2"]; 

using(EntityConnection con = new EntityConnection(connString)) 
{ 
    using (Entities context = new Entities(con)) 
    { 
     // Some code here 
    } 
} 

凡IsAdmin是一个函数采取user，如果他是一个管理员返回true和false如果不。

Answer 2

var conn = new EntityConnection(); 
conn.StoreConnection.ConnectionString = ConfigurationManager.ConnectionStrings["GameHutDBEntities2"]; 

this.Entities = new KurtDBEntities(conn);