Question

Possible Duplicate:
in a “using” block is a SqlConnection closed on return or exception?

Would this using close this _connection?

using(SqlConnection _connection = Class1.GetSqlConnection())  
{   //code inside the connection
}

//connection should be closed/ended?

I’m just wondering because GetSqlConnection() is a static function of Class1 and the whole connection might not be closed because it is calling outside class’ static function instead of straight?

 using(SqlConnection _connection = new SqlConnection(_connectionString)
 {   //code inside the connection
 }

Answer 1

Yes it does.

Here is an alternative way to implement the GetSqlFunction method so that you have a more explicit behaviour:

public class Class1
{
    private static SqlConnection GetSqlConnection() { /* unchanged */ }

    public static void UseSqlConnection(Action<SqlConnection> action)
    {
        using (var connection = Class1.GetSqlConnection())
        {
            action(connection);
        }
    }
}

Then you call it like so:

Class1.UseSqlConnection(c =>
{
    /* use connection here */
});

You could then extend this method to use an existing connection or create a new one depending on the semantics you prefer.