I have some SQL Servers that is Identical exept for the data stored and i want to be able to change between them and if i add more i want to easy add them with a windows form.

I have done a database first and this is the connection string that was added to the App.config file. I changed the username and password for security reasons

```
<add name="MigrateDBFaktura3Entities"
           connectionString="metadata=res://*/DB.ServerData.csdl|res://*/DB.ServerData.ssdl|res://*/DB.ServerData.msl;provider=System.Data.SqlClient;provider connection string=&quot;data source=FASTEC-ATTEST\SQLEXPRESS;initial catalog=MigrateDBFaktura5;persist security info=True;user id=**;password=**;MultipleActiveResultSets=True;App=EntityFramework&quot;"
           providerName="System.Data.EntityClient" />

```

Is there a easy way to change where i should get the data from?
I was thinking to use a combobox where i could chose what SQL Server it should get the data from.
If i manualy change the connection string it works. but how do i do it with code?