4D v20 is around the corner! In a few weeks, you will be able to get your hands on this wonderful new 4D LTS release. We thought it is the perfect mom...
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ORDA, which stands for Object Relational Data Access, is a method of accessing data that combines the advantages of object-oriented programming with t...
by Add Komoncharoensiri, Director of Technical Services at 4D Inc Here we go with another set of tips and tricks. The 4D Knowledge Base ...
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...
Error management is often a constraining part of development in all languages. In 4D, if you forget to call an error-handling method in a new process/...
For a mobile application, data is usually filtered to preserve storage space and provide direct and quick access to essential data. With 4D, you have...