Question

I have a page named A.aspx that loads a B.aspx using the load jQuery method. Like this:

$('#doclist').load('Documents.aspx #div1', { idMsg: $(this).data('cid') }, function (response, status, xhr) {
            if (status == "error") {
                var msg = "Error.";
                $('#doclist').html("<span>" + msg + xhr.status + " " + xhr.statusText + ". " + "</span>");
            }
        });

This can handle exceptions such a 404 or 500 Internal server error. The B page retrieve data from DataBase and a DBException is thrown but not catched by load jQuery method.

I don’t do anything at code behind.

Answer 1

Response with 500 Internal server error is the only thing script gets if there is no additional code o the server.

Consider returning JSON with data you need instead of HTML page. This way you can have custom errors as alternative result. I.e. for success {"result": ....} and in case of error: {"error":"Nice error explanation"}.