WebMatrix Database.Open… Close() and Dispose()

ASP.NET Web Pages framework examples of the Database helper do not include
calls to Close or Dispose because the framework itself is designed to call
Dispose for you at the end of a request. If you use ADO.NET instead of the
Database helper, you should employ using statements. Having said that, there is
nothing to stop you from wrapping Database helper calls in using blocks:

IEnumerable<dynamic> floaters = null;

using(var db = Database.Open("MyDb")){

    var sql = "SELECT * From LifeRafts";

    floaters = db.Query(sql);

}

If you wanted to manage it all yourself, you can simply call Close or
Dispose. They both result in the connection being returned to the ADO.NET
connection pool anyway.

WebMatrix Database.Open… Close() and Dispose(),码迷,mamicode.com