Is it possible to use deluge to update a field with web data 'on view'?

Is it possible to use deluge to update a field with web data 'on view'?

Hi there,

I'm using web data in one of my application and it works great. However, this data is prone to change from time to time. I can get fresh values by editing the form, but I have not figured out how to do this automatically. Is there an 'on view' function or a scheduler for getting new values from dynamic data sources?