Tips & Tricks for your 4D Apps – December 2024 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 15 tips:

1. 1. 1. Creating Custom Time and Date Formats
      2. Distinguishing Between Application vs Project Resources Folder
      3. Error -10517 failed to synchronize components folder
      4. Proper syntax for calling class functions on a pointer to collection
      5. Settings file priority order
      6. Navigation Between Form Pages using Tab Control Object
      7. directory.json file locations
      8. Drag and Drop a File into a 4D Form
      9. Locating Recent Modifications
      10. Number variables typed as “Integer” will have decimal values rounded
      11. Build Application Setting: “Embed the project Users and Groups in built server application” Fails to Copy Settings Folder
      12. Query Index Precedence
      13. Error: Log file cannot be integrated into database
      14. Change Cell Content Programmatically in 4D Write Pro
      15. Troubleshooting build application “Unknown error”