topic fileDialog2 always errors if cancel button is pressed, how do I prevent this? in Maya Programming Forum

fileDialog2 always errors if cancel button is pressed, how do I prevent this?

malcolm_341 — Thu, 06 May 2021 20:20:33 GMT

So I'm doing a simple export using fileDialog2, if the user cancels or closes the window I get this error Error: Use syntax: FBXExport -f "filename" [-s] and my script exits abruptly.

How do I cleanly cancel out of this, I see you can use -optionsUICancel to run a script after cancel to clean up the nodes left in the scene, but I still get the error, here's my code to test.

global proc m341_tbExporter_UICancel() { polyCube -w 1 -h 1 -d 1 -sx 1 -sy 1 -sz 1 -ax 0 1 0 -cuv 4 -ch 1; } string $tbSaveLocation[] = `fileDialog2 -ff "*.fbx" -optionsUICancel m341_tbExporter_UICancel`; FBXProperty Export|AdvOptGrp|Fbx|AsciiFbx -v "Binary"; FBXExport -f $tbSaveLocation -s;

Re: fileDialog2 always errors if cancel button is pressed, how do I prevent this?

e_honda — Fri, 07 May 2021 02:21:25 GMT

Hi,

If I understand your problem correctly,

when you cancel the FileDialog2, your $tbSaveLocation becomes an empty string array.

Passing this empty array to FBXExport, an error will raise.

A code like below would do the trick. It won't call FBXExort when user pressed cancel.

if (size($tbSaveLocation) == 1){ FBXExport -f $tbSaveLocation -s; }

Hope it helps.

Re: fileDialog2 always errors if cancel button is pressed, how do I prevent this?

malcolm_341 — Fri, 07 May 2021 03:54:34 GMT

Yes that's perfect, thanks so much.