如何从两个连接字符串中进行选择？

Question

下午好,我遇到了使用C#和Linq to Entities选择两个连接字符串的问题.目前我有两个连接字符串:

<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,即Admin和Clerk.如何允许管理员使用第一个连接字符串登录,并且职员将使用第二个连接字符串登录？

Answer 1

改编自这个答案:

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
  }
}

如果IsAdmin一个函数接受user并返回true,如果他是一个管理员,则返回true,如果不是,则返回false.