How to display a multilevel collection in different list boxes!
Starting with 4D v17, the content of a multilevel collection can easily be displayed in different list boxes. Meaning that you can bind several list boxes to display nested details … without a single line of code! This can be achieved by simply using an object or a collection as the data source for another list box!
With the new list box collection type, the “Current item” and “Selected items” properties have been added. Keep in mind that the “Current item” property allows you to get an object, while the “Selected item” property returns a collection.
How to create a generic form with dynamic forms
Imagine that your database contains several tables of types or categories. These tables are very simple, often with only an identifier and a text field. For demonstration purposes, let’s say it’s a shoe management database. To qualify the products, we need to define their type, color, pattern, material, season and so on.
It’s cumbersome to manage each of these tables in a list form and an input form and associated methods. In this case, the use of a generic form is essential to avoid duplication and simplify maintenance.
And that’s where dynamic forms and JSON pointers are come in handy!
4D helps you comply with GDPR!
In this dedicated GDPR guide of best practices, 4D helps you to build your GDPR compliance and get you started with your General Data Protection Regulation journey.
In this blog post, we’ll focus on a specific key step of this journey: discovery and how 4D can help you create an overview of existing personal data, via a built-in functionality. We’ll even provide you a code example!
How to create a dynamic form from a table in 3 steps!
4D v17 includes dynamic forms, initially introduced in 4D v16 R6, a powerful and flexible way to dynamically build forms fully adapted to your end users’ needs. The possibilities of dynamic forms are tremendous. In this post, we’ll see a concrete example of what you can do with these new forms.
How to create a newsletter in 4D Write Pro
4D Write Pro is a powerful text engine, entirely programmable, and fully integrated into 4D and its database. It has an unlimited number of uses. Beyond generating complex documents by programming, or creating letters and quotes as in classic word processors, 4D Write Pro allows you to easily publish your documents on the web.
Find a specific attribute value in a single line of code!
Remember the days when you had to use nested loops and conditional statements to retrieve an object’s attribute? So you ended up with a long and complicated piece of code? Well, those days are over! Thanks to object notation combined with collections and their methods, you’re now able to write code faster, and in a more readable way!
Finding a specific attribute’s value has never been easier. Let’s take a look at a real life scenario and discover how!
Play videos with 4D
We’re in the visual and interactive content era. It’s becoming increasingly more and more prominent. Take a look at digital community statistics and you’ll discover that YouTube is the second most popular social network.
At some point, most web developers want to include videos in their sites and coincidentally, databases frequently contain links to videos (either hosted locally or on the web). This post shows you two ways to include videos in your 4D applications.
4D Write-like toolbar example for 4D Write Pro
Moving to 4D Write Pro is a great evolution to make your applications ready for the latest (and future) operating systems. However, new tools can sometimes be intimidating. Do you miss the vintage 4D Write plugin’s toolbar? No problem, here’s a 4D Write Pro toolbar example that looks just like it!
How to use Twitter’s search API with 4D
Given that there are around 6,000 tweets every second (i.e. over 350,000 tweets per minute, 500 million tweets per day equaling approximately 200 billion tweets per year), it would be great if we could search for those related to a specific subject rather than an avalanche of tweets we’re not interested in. Good news! Twitter provides a REST Search API that is great for searching tweets.
Ready-to-use toolbar example for 4D Write Pro
You’d like to use 4D Write Pro, but don’t have the time to create a toolbar from scratch? We’ve created a sample application with a ready-to-use toolbar, including two icon families, so you can choose the toolbar style you prefer (flat design or classic). And on top of that, we also added a complete menu bar! Check it out and reuse it for your own applications!
Contact us
Got a question, suggestion or just want to get in touch with the 4D bloggers? Drop us a line!
* Your privacy is very important to us. Please click here to view our Policy