Recently I had to create a Delphi VCL form with a tree-like control. It should be a piece-of-cake with Delphi: just dropped a TTreeView control on the form and I was almost there. But there was one gotcha: I wanted to have checkboxes in each node. Worse: checkboxes that could hold three different states (checked, unchecked, partial).

It’s very rare that I have to build complex GUI applications (lucky me) thus I had hope that in most recent VCL all I had to use was to enable some kind of property in the TTreeView component. To my disappointment, there is not such support for checkbox in the tree view.

We have recently published in our Youtube channel (subscribe!) an interview with Alexandre Henzen, Technical Director of Viasoft Korp. The interview (in Portuguese) is available through this link, and in this article right below as well.

Amazing things are happening in the Delphi world! Amazing things are going to happen in the Delphi world. This week, two different, important webinars are going to announce great things coming in the Delphi world!

Embarcadero has been running, for quite some time already, an MVP (Most Valuable Professional) program, which, according to the official web site, “chooses the “best of the best” Embarcadero community members to be trusted assets for our customers and prospects”.

In this unusual year, Embarcadero is bringing us the DelphiCon 2020 Worldwide event: the official online conference about Delphi. It’s a free, 3-day online event, which will happen on November 17h through 19th with extraordinary content and expert speakers.

By now you probably know about GraphQL, or at least you might have read or heard that name somewhere. Wikipedia says that “GraphQL is an open-source data query and manipulation language for APIs, and a runtime for fulfilling queries with existing data”. If that doesn’t say much to you, or if you have read about GraphQL before but didn’t understand very well what it is, then this article is for you. Its purpose is to try – again – to explain what GraphQL is, its advantages and disadvantages, from the perspective of a Delphi (and also TMS XData) developer.

Detecting memory leaks is a very important task in Delphi development. I’ve written about it before, stressing that in server applications like the ones built with TMS XData this is even more important.

With the upcoming release of Delphi 10.4 version, this will become even more relevant. A unified memory management has been promised since last year, and it looks it has arrived.

This one is another one of many interesting discussions we had at the TMS Business Masterclass in Düsseldorf. One of then was the funny discussion about class fields having their name prefixed with uppercase “F” or not.

In November 2019, TMS Days 2019 took place in both Düsseldorf, Germany and Wevelgem, Belgium. It was the biggest TMS event ever, with three full days in two different cities, and team members from nine different countries around the world.

It was a face-to-face event and even before the event started many people from all over the world approached us asking if they could watch the content online since they could not travel to attend the event in person.

Be prepared! Coming in November 2019, the biggest TMS Software event ever: TMS TRAINING DAYS 2019. TMS team members from nine different countries will be speaking about Delphi development, TMS libraries and components, in sessions that target from the beginner developer to the advance one.