ASP.Net 2.0 Correctly throw exception

[Steve B.]

Hi,

I'm wondering how to correctly throw exception within ASP.Net pages.

I've page wich which waits for an "id" parameter in the querystring. I want
to validate this param.

I've wrote this code :

if (Page.Request.QueryString["id"] == null)

{

throw new ArgumentNullException("id");

}

int id;

object o;

if (!int.TryParse(Request.QueryString["id], out id) || (o =
GetObjectFromDataBase(id)) == null)

{

throw new ArgumentOutOfRangeException("Inexistant or invalid ID", "id");

}

else

{

DoSomethingWithO(o);

}



Is it the correct exceptions to throw when validating query string
arguments?

Thanks in advance,

Steve