实体框架生成的上下文使用错误的连接字符串

Question

I added an ADO.NET Entity Data Model to my project, which created a connection string in app.config looking like this:

<add name="KeyTranslatorEntities" connectionString="metadata=res://*/DAL.Model.csdl|res://*/DAL.Model.ssdl|res://*/DAL.Model.msl;provider=System.Data.SqlClient;provider connection string=&quot;data source=ZZZZZ.database.windows.net,1433;initial catalog=KeyTranslator;persist security info=True;user id=YYYYY;password=XXXXX;MultipleActiveResultSets=True;App=EntityFramework&quot;" providerName="System.Data.EntityClient" />

It also generated the class KeyTranslatorEntities which inherits from DbContext and has this default constructor:

public KeyTranslatorEntities()
        : base("name=KeyTranslatorEntities")
    {
    }

I create a KeyTranslatorEntities using the default generated constructor but upon inspection, the instance uses the connection string:

"data source=localhost;initial catalog=KeyTranslator;integrated security=True;MultipleActiveResultSets=True;App=EntityFramework"

Why is it not using the correct connection string?

Answer 1

The problem was that the solution consisted of two different projects. One containing the EntityFramework code and another which was a WebService project with a dependency on the other project. The WebService project contained the first connection string which was being used.

Lesson learned: Make sure the startup project's config files are updated.