dataflex

Tips/Tricks for DataFlex

Is anyone out there still using DataFlex? If so, what are you favorite tips and tricks for this venerable 4GL? ...

Receiving automatic notification from SQL Server when a table is non-empty

I would like to use an SQL Server table as an action queue. So whenever the table is non-empty, I'd like some sort of notification to my VDF application, in order to avoid constantly polling the database. VDF relies on using stdcall, the standard calling convention for the Win 32 API, or COM/ActiveX. Another solution that could work for ...

Visual DataFlex: call WebService from the web page

I have the web service and generated class for it. I can use this generated class in windows application as it described in Help. The question is: how can I use this generated class in the web project? (the analogous actions - creating object and use its functions -, as it was in windows app, are not worked) ...