实体框架错误不支持关键字：provider \\ r \\ nconnection string

Question

I have made MVC API using Entity Framework. It worked fine on my PC as localhost on Visual studio when I published it and I hosted the api and the database on myasp.net to test it and just replaced this connectionstring :

<add name="ENGeekEntities" connectionString="metadata=res://*/Models.operation.csdl|res://*/Models.operation.ssdl|res://*/Models.operation.msl;provider=System.Data.SqlClient;provider connection string=&quot;data source=.\SQLEXPRESS;initial catalog=ENGeek;integrated security=True;MultipleActiveResultSets=True;App=EntityFramework&quot;" providerName="System.Data.EntityClient" />

with the site connectionstring:

<add name="ENGeekEntities" connectionString="metadata=res://*/Models.operation.csdl|res://*/Models.operation.ssdl|res://*/Models.operation.msl;provider=System.Data.SqlClient;provider 
connection string=&quot;Data Source=SQL5025.myASP.NET;Initial Catalog=DB_A0A604_ENGeek;User Id=DB_A0A604_ENGeek_admin;Password=MyPassword;App=EntityFramework&quot;" providerName="System.Data.EntityClient" />

When I try to get data it gives me this error:

"Message":"An error has occurred.","ExceptionMessage":"Keyword not supported: 'provider \\r\\nconnection string'"

Any Ideas !!

Answer 1

The reason you were getting this error because of the " in your connection string. Replace " with single quotes ' like below.

<add name="ENGeekEntities" connectionString="metadata=res://*/Models.operation.csdl|res://*/Models.operation.ssdl|res://*/Models.operation.msl;provider=System.Data.SqlClient;provider 
connection string='Data Source=SQL5025.myASP.NET;Initial Catalog=DB_A0A604_ENGeek;User Id=DB_A0A604_ENGeek_admin;Password=MyPassword;App=EntityFramework'" providerName="System.Data.EntityClient" />

Answer 2

Solved. There were two problems. The first problem was in serializing IEmunerable ,I repalced it with JavaScriptSerializer. The second one solved by adding single quotes Like mentioned