Use try catch instead of isempty() to check if variable exists

[sameehj]

If DisplayName doesn't exist for some reason we might get the following error [0].

Simply use try catch to store the name.

[0] - Unrecongnized field name "DisplayName".

Signed-off-by: Sameeh Jubran [email protected]

[gilbertogalvis]

Hi @sameehj! This PR fix the issue #280?

I fixed that issue 2 days ago.

Can you please clarify us what issue is fixed with this PR? Thanks!