更改实体框架中的连接字符串（模型优先）

Question

I am using entity framework model first approach in WCF . The EF creates a connection stringwhich looks something like this:

automatically for the first time.

Now I want to change the connection string as database is located in other server.

How can I do it?

Connection string looks like this for now:

<connectionStrings><add name="Entities" connectionString="metadata=res://*/Database.Model1.csdl|res://*/Database.Model1.ssdl|res://*/Database.Model1.msl;provider=Oracle.ManagedDataAccess.Client;provider connection string=&quot;data source=AB;password=admin;persist security info=True;user id=TEST&quot;" providerName="System.Data.EntityClient" /></connectionStrings>)

Regards Anudeep

Answer 1

一种简单的方法是使用新的连接详细信息修改app.config或web.config文件，因此调用var context = new DataContext（“ NewServerEntities ”）构造函数将在配置文件中使用命名连接。

<add name="NewServerEntities" connectionString="metadata=res://*/Database.Model1.csdl|res://*/Database.Model1.ssdl|res://*/Database.Model1.msl;provider=Oracle.ManagedDataAccess.Client;provider connection string=&quot;data source=NewServer;password=admin;persist security info=True;user id=TEST&quot;" providerName="System.Data.EntityClient" />

Answer 2

Remove the connection string from the app.config file, re-run the entity Data Model wizard by right-clicking the designer and chose Update Model From Database, it will guide you to build a new connection. Or else directly edit the Datasource and credentials in the existing connection string in App.config.