4D provides you with multiple built-in ways to backup your data: 4D backup and the use of a mirror server. With 4D v20, 4D exposes internal commands t...
The functions associated with collections were introduced with 4D v16 R6 and have evolved with the possibility to use formulas for some of them, like ...
PDF format is a viable alternative to XPS for print previewing on Windows, providing users with a more accessible option. Microsoft's decision to make...
With every release, the 4D View Pro features list is growing. And this feature release is no exception: 4D v20 comes with a new version of SpreadJS, t...
We're excited to announce that beta testing for 4D v20, one of our most anticipated LTS versions yet, is starting today! With over +100 advances, inc...
Formatters allow you to format the displayed data or to define behavior when the user touches the data. The input controls follow the same principle. ...
Actions allow users to interact with the application to change the customer's address, add a new contact and modify a picture. In the 4D language, an...
The data of your application are linked together by two types of relationship: Many to One or One to Many. In this blog post, we will show you how to...
A data formatter allows you to map a data type from your database to a specific display on the mobile side. For example, you can define a date, percen...
To facilitate the use of an application, the data presented to the user is usually sorted alphabetically, chronologically, or a combination of several...
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