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The yield return operator is one of the least known among programmers using C#. At least among beginners. And even those who know something about it, are not completely sure that they understand the principle of its work correctly. This annoying gap must be corrected. And, I hope this article will help you with this. The yield return operator returns the collection item in the iterator and moves the current position to the next element. The presence of the yield return operator turns the method into an iterator. Each time an iterator encounters a yield return, it returns a value. This operator signals to us and the compiler that this expression is the iterator. The task of the iterator is to move between the elements of the collection and return the value of the current one. Many people are used to call the counter in the loop as an iterator, but this is not true, because the counter does not return a value. The iterator is converted by the compiler into a "f ...

“How to save in the HTML file format from Delphi?”, “how to create an HTML 5 file from Delphi?”, “how to create the HTML 5 file from Lazarus?” – these questions often arise among the developers. The HTML document is written in Hypertext Markup Language (HTML). It serves to create relatively simple but beautifully designed documents. There is no point in talking about HTML from the beginning. But it is worth to dwell on some features – HTML can be different – with tabular and layered layouts, HTML 4 and HTML 5 standards (I will not consider earlier ones as soon as they are already out of circulation). Thanks to HTML5, web pages have learned to store data locally in user’s browsers, which allows you to refuse HTTP cookies. Content is del ...

We are pleased to announce the release of FastReport Business Graphics .NET! In this update, we focused on increasing compatibility, improving support for modern platforms, and preparing for future versions of .NET.     Compatibility with .NET 9 One of the key changes was the addition of the necessary attributes to the components to ensure full compatibility with .NET 9. This means that FastReport Business Graphics .NET now works correctly in the most latest environments, maintaining stability, performance and support for new features of the framework. If you are planning to port to .NET 9 or are already using it in your projects, you can be sure that our components are ready to work without any additional modifications!   ...

As you can see from the name, Windows Forms type of applications is designed to work in the Windows environment. For example, good old MS Word or Calculator application and many other programs with window interface. This actually is the whole API for working with the Windows GUI, which is part of the .Net Framework. Thanks to this API, creating applications with forms has been greatly simplified, unlike the MFC framework. Thus, Windows Forms technology has gained great popularity.  The application area of such programs is limited only by imagination. In this article, we will look at how to print business cards from a WinForms application. We all know what a business card is – a card with contacts and brief information about the activities of a company or businessman. A business card is needed in order to quickly exchange contact information with someone and avoid wasting time on writing down a phone number or e-mail address. The business card design plays ...

In version 2025.2 of FastReport Cloud and Corporate Server, the ability to use custom fonts has been added, functionality for Tasks, data sources, and preview service has been improved, the installation wizard has been redesigned, and a new edition of Corporate Server — FastReport Publisher — has been introduced.     Font Service Users can now upload their own fonts in *.ttf and *.otf formats and use them for template design in the Online Designer, in the preview window, and in exports to various format ...

New objects We have added a new object "Radial counter": This object allows you to visualize values. This counter has several types: Circle ...

Electronic document management has become an integral part of our lives already long time ago. Everyone appreciated the convenience of such documents - they do not deteriorate over time, they are more difficult to lose, easy to store and quickly transfer to any distance. And although, the times of registered letters and parcels have not yet passed, the need for them will completely disappear very soon. The bureaucratic system recognizes only signed documents and that was a major obstacle to the development of electronic document management. After all, what's the use of the document transfer speed, if its signed version is necessary, so to say “original”. Therefore, electronic signatures have been developed - ciphers that guarantee uniqueness and originality, allowing to unequivocally establish authorship and protect against document changes. Thanks to reliable encryption algorithms, such signatures are no worse than handwritten, and even better, more reliable. ...

+ added TfrxMemoView.Clipped property+ added TfrxReport.OnAfterPrintReport event+ added baClient to Align property+ added Danish, Chinese resources+ now you can use national chars in the script identifier names+ added TfrxPDFExport.PrintOptimized property+ improved speed of the Excel export filter+ added log rotate function in Client/Server version- bug fixes ...

We became a sponsor of The Autumn ADUG Symposium 2011.  ADUG is an organisation dedicated to providing a forum for activities and information that promote and improve the professional use of Delphi and related products and services in the Australian developer community.  You can visit this page for getting more information:  ADUG Symposium ...

Quite often, you need to get a PDF document from a Pascal application - either Delphi or Lazarus. Usually it is recommended to use specialized solutions, PDF converters (such as itext, Synopse PDF Engine, PowerPDF, HotPDF, PDF Creator Pilot, PDFtoolkit VCL, Debenu Quick PDF Library etc.). In this article we will not consider their advantages and disadvantages. Unexpectedly for us, it turned out that even if there is no “PDF” in the product name, the capabilities of FastReport VCL for PDF output in Delphi cover many of the developer’s needs. And many of our customers use ONLY FastReport features to make PDF! So, first of all – you can send any arbitrary complex report to PDF. Let’s try! Create a new VCL application in Delphi ...