Author: Eusebio M40205
The problem
appeared when discussing “Scalability of enterprise DBMS-targeted systems” (in English on massive demand in comments) with Dmitriy Kouzmenko, Russian expert in InterBase since its origin. Then this occasional topic called more interest, so now I have to give some light to the this. The initial idea was how to make a user press “backup db”…
VCL App calling a FireMonkey DLL
We have had a lot of questions on the road show tour about how to mix Fire Monkey and VCL. Although this is not officially supported, a number of blogs have started to appear with ways to do this.
One way that is appropriate to add additional…
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…
How to start a programming career with Delphi XE and C++Builder XE Starter Editions
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…
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…
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…
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…
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…
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…
Author: Craig Stuntz
A couple of weeks ago, I wrote What Is Homomorphic Encryption, and Why Should I Care? In that post, I promised to share my C# implementation of the algorithm from Craig Gentry’s CACM article. Before I can do that, though, I need to explain some of the math involved.
Perhaps surprisingly, it’s actually very simple. (I say “surprisingly” because much of…
