From Xojo Documentation

Property (As Integer )
aWebFileUploader.UploadTimout = newIntegerValue
IntegerValue = aWebFileUploader.UploadTimout

New in 2018r1

Supported for all project types and targets.

The number of seconds that, once passed, will cause the UploadError event to be called.


The default is 0, which means "no timeout". Be aware that not having a timeout can result in out-of-memory issues for some web apps when uploading large (> 32MB) files.