Can “using” with more than one resource cause a resource leak?

Question

C# lets me do the following (example from MSDN):

using (Font font3 = new Font(\"Arial\", 10.0f),
            font4 = new Font(\"Arial\", 10.0f))
{
    // Use         


        

Answer 1

Here is a sample code to prove @SLaks answer:

void Main()
{
    try
    {
        using (TestUsing t1 = new TestUsing("t1"), t2 = new TestUsing("t2"))
        {
        }
    }
    catch(Exception ex)
    {
        Console.WriteLine("catch");
    }
    finally
    {
        Console.WriteLine("done");
    }

    /* outputs

        Construct: t1
        Construct: t2
        Dispose: t1
        catch
        done

    */
}

public class TestUsing : IDisposable
{
    public string Name {get; set;}

    public TestUsing(string name)
    {
        Name = name;

        Console.WriteLine("Construct: " + Name);

        if (Name == "t2") throw new Exception();
    }

    public void Dispose()
    {
        Console.WriteLine("Dispose: " + Name);
    }
}