List Boxes: Time Columns and Footer Calculation!
List boxes are great, powerful tools to display data in the interface. They can display fields from records, items from arrays, and since recently, en...
April 23, 2021
1 min read
User Interface / GUI
Design maintainable desktop interfaces with forms, dynamic data binding, embedded web areas, improved subform behavior, window customization, and structured UI patterns that keep logic centralized.
Use collections and lists within forms objects
Collections are increasingly used in 4D programming. Starting with 4D v19, you can use them to define the content of some interface objects, including...
April 23, 2021
1 min read
List boxes: Manage clicks in edited cells
As a developer, you're used to handling events inside form objects. The most common is the on clicked form event which can be used in most objects, in...
January 22, 2021
1 min read
6 practical examples on how to use macros
4D 18 R5 introduced form macros. They can be incredibly useful, for example, by providing an ideal way to save time on repetitive tasks. In this blog ...
November 20, 2020
1 min read
Type ahead made easy
If you're interested in the user interface, you may have already used the On before keystroke and On after keystroke events. You'll certainly be happy...
October 27, 2020
1 min read
A new command to open a Form in the Form Editor
4D v18 R5 provides a new 4D command to open a form in the form editor. This can be especially useful for analysis or introspection tools. ...
October 27, 2020
1 min read
Automate repetitive tasks and more with form macros!
If you're a fan of macros in the code editor, then 4D v18 R5 has some good news for you ... because now macros are also available in the form editor!...
October 27, 2020
1 min read
List boxes: Setup movable rows (or not!) by code
List boxes are powerful form objects. They're easily created and manipulated, and most importantly, they can handle any kind of data. Additionally, th...
August 12, 2020
1 min read
Access form object values by programming
An increasing number of developers are using the Form command to link their form objects and many of you require easy programming access to the values...
July 23, 2020
1 min read
Use an offscreen web area
Do you need to load web pages, extract metadata, or generate pictures from the contents of pages on a headless server? If you answered "yes", then you...
June 9, 2020
1 min read