Question

Is possible to catch more then one exception in the same catch block?

try
{   }
catch(XamlException s | ArgumentException a)
{   }

Answer 1

Yes. If you catch a superclass, it will also catch all subclasses too:

try
{
    // Some code
}
catch(Exception e)
{
    // ...
}

If this catches more than you wanted then you can rethrow the exceptions that you didn’t intend to catch by testing their type. If you do this, be careful to use the throw; syntax, and not throw e;. The latter syntax clobbers the stacktrace information.

But you can’t catch two different types using the syntax you propose.