en-GB

September 30, 2011

Author: Jim T1392 TBindList can iterate throughthe records in a TClientDataSet and fill a TListBox. Here is how toconfigure TBindListin the designer. Drop a TClientDataSet and a TDataSource on a form. Load some data into the dataset such as biolife.xml (Right click ClientDataSet1, choose “Load from MyBase table…”, browse to thesample data…

New "TOSVersion" type in Delphi XE2

August 31, 2011

Author: Tóth Erik Delphi XE2 is probably the most significant release since Delphi 1. The number of new features is amazing and probably the biggest, most important one is FireMonkey – a brand new business application development platform that let you use Delphi…

Why Won't Visual Studio Step Into This Code?

March 30, 2011

Author: Craig Stuntz I helped another developer debug an interesting problem this morning. Let’s see if you can spot the problem. The code in question looked something like this simplified version containing only enough code to show the problem: public void…

C++

How to start a programming career with Delphi XE and C++Builder XE Starter Editions

By David Intersimone

February 4, 2011

Over the years, one of the recurring conversations has been around how to get started in computer programming, what language to learn first and how to prepare for a career. There have been numerous articles, blog posts, conference talks, videos, white papers and studies done. Colleges,placement centers and employment agenciesalso offer advice to…

Delphi JSON Viewer

October 1, 2010

Author: Michael K22532 JSON support has been introduced in Delphi 2010 as a part of DBExpress database driver architecture, but of course JSON support is not limited to just database applications. JSON is similar to XML as both are text-based data interchange formats. Delphi…

Troubleshooting Entity Framework Connection Strings

August 13, 2010

Author: Craig Stuntz In an application which uses the Entity Framework, you may see the following error at runtime: MetadataException: Unable to load the specified metadata resource The cause of this error is a missing or malformed Entity Framework connection string. In…

Using Windows Stock Icons in Delphi

May 31, 2010

Author: Pawe Gowacki it is not a big discovery that all applications are running in the environment provided by the underlying operating system. Delphi is well-known for its rapid application development capabilities. The latest version of Delphi – Delphi 2010 – is the first release to support Windows 7, with all its latest and hottest additions including touch, multi-touch, gesturing…

In LINQ, Don't Use Count() When You Mean Any()

April 21, 2010

Author: Craig Stuntz If you have a list, array, or query in a C#/LINQ application and need to check and see if the list is empty, the correct way to do this is to use the Any() extension method: if (q.Any()) { Similarly, you can check to see if any elements in the list…

Converting to grayscale with TBitmap.ScanLine property

April 15, 2010

Author: Pawe Gowacki In my previous post “Boian’s TBitmap Visualizer and converting to grayscale” I have described an algorithm for converting arbitrary TBitmap instances to gray using a selected formula. The problem is with the performance of the code that…

A Math Primer for Gentry's Fully Homomorphic Encryption