Tips & Tricks for your 4D Apps – January 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 25 tips:

1. MacOS upgrades may change license folder permissions
2. Folder .delete() Function and Hidden.DS_Store Files
3. How to copy a collection of entities
4. Deprecated or Removed Connectivity Products as of 4D v19
5. Specifying Server Address for Built 4D Client Server Applications
6. Utility method to create local info report every x ticks
7. Storing Object Fields Outside Data File
8. How to fix the “Package name segment” build error
9. Set the “Editable by user” Setting for Lists in Binary Databases v18 and Up
10. 4D Write Expand Function for 4D Write Pro
11. Sort Collection of Strings in Numeric Order
12. Check which video codecs are supported in the web area
13. The available tab when connecting remotely only shows servers on default port 19813
14. User and Groups Owner Behavior with Deletion
15. Use the “Compare Strings” Command to Compare Hidden Characters
16. Finding Index in Collection with Formula
17. Finding out whether a database will work when converted to a newer version
18. Entry Order and the “Tabable” Property in Binary vs. Project Mode
19. Create a group as Administrator to save/load group membership changes
20. Utilizing User Database Settings
21. Connect to a compiled 4D app with M1 Machine
22. USERS TO BLOB will return an empty blob in project mode
23. How to quickly obtain current 4D application version info
24. Recreate .4DSettings File in a Built 4D Application
25. Monitoring Backups