How to solve'System.Data.Entity.Database.DefaultConnectionFactory' is obsolete?

Question

Using Asp.Net MVC at the following line:

Database.DefaultConnectionFactory = new SqlCeConnectionFactory("System.Data.SqlServerCe.4.0");

I get error message:

Warning as Error: 'System.Data.Entity.Database.DefaultConnectionFactory' is obsolete: 'The default connection factory should be set in the config file or using the DbConfiguration class. (See http://go.microsoft.com/fwlink/?LinkId=260883)' 

How to rewrite it?

Answer 1

Copied from msdn link

[ObsoleteAttribute("The default connection factory should be set in the config file or using the  DbConfiguration class. (See http://go.microsoft.com/fwlink/?LinkId=260883)")]
public static IDbConnectionFactory DefaultConnectionFactory { get; set; }

Here is the link http://msdn.microsoft.com/en-us/library/system.data.entity.database.defaultconnectionfactory(v=vs.113).aspx

one more link it suggests http://go.microsoft.com/fwlink/?LinkId=260883

Answer 2

如果要使用配置文件设置DefaultConnectionFactory则可以遵循此http://msdn.microsoft.com/zh-cn/data/jj556606.aspx

Answer 3

You need to add a class inheriting from System.Data.Entity.DbConfiguration to the assembly where your DbContext class resides.

In the constructor of the class you add the call: SetDefaultConnectionFactory(new SqlCeConnectionFactory("System.Data.SqlServerCe.4.0"));