Tips & Tricks for your 4D Apps – October 2023 Edition

by Add Komoncharoensiri, Director of Technical Services at 4D Inc

Here we go with another set of tips and tricks.

The 4D Knowledge Base is a library of information about 4D technology where weekly tech tips and monthly tech notes are actively published. If you missed the last tips on the KB, that’s fine; here is a compilation from the past few weeks.

This blog post covers 19 tips:

1. 1. Programmatically Set Currency Format for a Column in 4D View Pro
   2. Find command number for “Log command list” constant in SET DATABASE PARAMETER
   3. Using the Runtime Explorer for Testing
   4. Running Qodly Studio for 4D
   5. Things to check before migrating database to new OS
   6. Enable password masking for text input and combo boxes
   7. Find the Structure File of your Application with the Help of 4D
   8. Optimizing web pages for scalability
   9. 4D Web Server CORS Settings
   10. Avoid mixing plugins from previous versions
   11. Error: Versions number of 4D server is more recent than client
   12. Default values for missing parameters
   13. When is Notarization Required with 4D?
   14. Qodly Studio Files
   15. Remember to copy Settings folder to newly built project to transfer users and groups
   16. Get RGB Color From Native Color Picker (Project Mode)
   17. Converting Arrays to a String
   18. What to check when 4D Server is not opening the debugger upon TRACE or breakpoint
   19. Utility method to convert a collection to JSON string