c# - 在连接字符串中设置到数据源的方式

Question

我的连接字符串是

string connStr = @"Data Source=(local)\SQLEXPRESS
                        Initial Catalog=University11;
                        Integrated Security=True";

但后来我把我的数据库复制到

C:\Users\Чак\Desktop\ботанизм\ООП\coursework.start\CourseWorkFinal\CourseWorkFinal\

并将其设置为连接字符串中的方式

  string connStr = @"Data Source=C:\Users\Чак\Desktop\ботанизм\ООП\coursework.start\CourseWorkFinal\CourseWorkFinal\;
                        Initial Catalog=University11;
                        Integrated Security=True";

但在那种情况下我有一个异常(exception)

A network-related or instance-specific error occurred while establishing a connection 
to SQL Server. The server was not found or was not accessible. Verify that the instance 
name is correct and that SQL Server is configured to allow remote connections. 
(provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance 
Specified)

我需要什么正确的连接字符串？

Answer 1

如果这是一个“用户实例”对文件的访问，那么连接字符串更像是:

Data Source=.\SQLEXPRESS;AttachDBFilename=YourPath.mdf;Integrated Security=True;

否则，使用初始目录提供在实例上注册的数据库名称。