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Asked: 2026-05-26T14:10:59+00:00

The connection string generated by entity framework looks like this. <add name=ETestEntities connectionString=metadata=res://*/Models.TestModel.csdl|res://*/Models.TestModel.ssdl|res://*/Models.TestModel.msl;provider=System.Data.SqlClient;provider connection

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The connection string generated by entity framework looks like this.

<add name="ETestEntities" connectionString="metadata=res://*/Models.TestModel.csdl|res://*/Models.TestModel.ssdl|res://*/Models.TestModel.msl;provider=System.Data.SqlClient;provider connection string=&quot;Data Source=bogus\sqlexpress;Initial Catalog=ETest;Integrated Security=True;MultipleActiveResultSets=True&quot;" providerName="System.Data.EntityClient" />

I ftp deployed the application, created the database(i named it ETest) and created an user.
The instruction i got is:

In order to connect to SQL Server 2008 from Management Studio, Enterprise Manager, Query Analyzer or other client software you can use the following SQL Server address:
1.2.3.4

You may also use SQL Server address above in your application connection strings, for example:
Classic ASP (ADO Library)   Provider=SQLOLEDB;Data source=1.2.3.4;Initial catalog=databaseName;User Id=userName;Password=password;
ASP.NET (ADO.NET Library)   Server=1.2.3.4;Database=databaseName;Uid=userName;Password=password;

I tried the following from http://www.connectionstrings.com

Data Source=myServerAddress;Initial Catalog=myDataBase;User Id=myUsername;Password=myPassword; 

Server=myServerAddress;Database=myDataBase;User ID=myUsername;Password=myPassword;Trusted_Connection=False;

How do i have to modify the connection string to make it work?

It seems to work like this:

Connection string: Data Source=dataSource;Network Library=dbmssocn;Connection Timeout=15;Packet Size=4096;Integrated Security=no;User ID=user;Password=pass;Encrypt=no;
Connection timeout: 15
Database: ETest
Datasource: dataSource
Network packet size: 4096
Server version: 10.00.4311
Work station id: WIN-HS1ITVC2D4K
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1 Answer

  1. Editorial Team

    With Entity Framework there is an extra abstraction1 going on. The connection string generated for you, with a couple of added line breaks:

    metadata=res://*/Models.TestModel.csdl|res://*/Models.TestModel.ssdl|res://*/Models.TestModel.msl;
provider=System.Data.SqlClient;
provider connection string=&quot;Data Source=bogus\sqlexpress;Initial Catalog=ETest;Integrated Security=True;MultipleActiveResultSets=True&quot;

    can be seen to contain a provider connection string property, the value of this property is the “normal” connection string (undoing the XML escapes):

    "Data Source=bogus\sqlexpress;Initial Catalog=ETest;Integrated Security=True;MultipleActiveResultSets=True";

    You need to replace the value of the Data Source and Initial Catalog properties of this inner connection string.

    1 Essentially the EF connection string is telling the EF runtime where to get the model (from resources in an assembly) to create the in-memory model, what EF provider to use, and what connection string to pass to that provider – and it is this last piece that you need to adjust when the server, instance or database changes.

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