Using entity framework on multiple databases

Question

I am writing a payroll system that will integrate with a pre-existing system. The original system had a master database that handled user management and some global configur

Answer 1

It is very simple. I have:

public WMSEntities() : base("name=WMSEntities") //WMSEntities is conection string name in     web.config also the name of Entitiframework
{
}

already in autogenerated Model.Context.cs of edmx folder

To connect to multiple database in runtime, I created another constructor that takes connection string as parameter like below in same file Model.Context.cs

public WMSEntities(string connStringName)
    : base("name=" + connStringName)
{
}

Now I added other connection string in Web.Config for example