Programming

This article describes how to use Document Object Model (DOM) for XML Parsing. In this article, you will learn how to parse an XML file in a VC++ application.

This small, handy article will describe PHP (Hypertext Preprocessor) in a few easy steps and will be very useful to anyone new to PHP programming.

This is a simple login system that has been very reliable and secure for me. I use it myself on my websites, when a simple login system is needed. If you know a little of MySQL...

Learn it, and make it (for beginners)!

This article will explain how you can assign a SelectionFormula to a Subreport using VB6 and Crystal Reports.

There is an easy way to design a website with minimal requirements! Creativity and deep understanding of the theme and navigation is a must! It does not require you to become an...

ASP makes it very easy to convert a string to a date format using built-in VBScript functionality. We're going to use the CDate function to accomplish this. The CDate function...

Learning syntax in C programming will make you understand how to code C in a better way, making you less prone to syntax errors when coding. Below are some conventions in writing...

This will show you how to find an HTML editor freeware using the Google search engine. Its easy, fast and free but you'll need to review each HTML editor freeware before you choose...

The article will explain about escape sequences in C. How and the implementation in the code.

Simple tips for making it harder for visitors to copy your website content.

This information will help you learn Python in steps. You can learn Python in a few weeks if you have a programming background.

This article will get you to know about how to program in C, simple program that prints characters to the screen.

PHP is said to be an acronym for PHP: Hypertext Preprocessor, however it's probably just HPP (hypertext preprocessor) rearranged to sound better.  It is an open source scripting...

Introduction.  This article will discuss how to connect PHP and MySQL, to create a dynamic database-driven website. I will assume that you already have a PHP...

A form is an area that contains various form elements to take user input for processing by a special program. There are various form elements as can be seen in the diagram below....

Microsoft's Visual Basic is one of the most popular programming languages in the world. With it you can create almost any type of application imaginable! Visual Basic is a RAD...

Learning HTML code begins with learning the basic tags.  By studying the examples in this article, you should know all of the basic HTML tags that you will need in creating a...

Knowing how to change font size on your webpage is almost necessary when creating an attractive, well-organized and sophisticated webpage.  You can use the technique to organize,...

Changing your font color can have practical as well as purely fun purposes.  It can make your page look more interesting, and it can help you to organize your page.  By following...

Changing fonts is one way to spice up a webpage.  It can also be useful to create headers, emphasis, or differentiation on a webpage.  The following steps will allow you to change...

Creating a website can be a long, tedious process.  Using an HTML editor can streamline the act of writing code to a pleasant degree.  If you find yourself in the market for...

Creating a website is a big project, but not by any means unattainable.  More and more people are finding that they, too, can design and code a website by just spending a few...

There are plenty of reasons to add flair to your website:  presentation, graphical representation of an idea, or just fun.  Changing the cursor (what is traditionally displayed...

With the influx of websites that allow an individual user to sign up for his very own chunk of webspace, the demand for information on how to add zest to one's webpage is growing...

When creating an association in ECO you are not guaranteed the order in which the objects at the end of the association will be presented.  For this reason ECO provides a...

Not only is Application.ProcessMessages quite long to type, often extra functionality needs to be called when its used.  To this end I have created two basic wrappers which...

In this article I’ll use the term “Identity” interchangeably to note Auto generated (from RDMS) values usually for a column representing the primary key of a table. These...

You will need the function in this article (http://www.howtodothings.com/ViewArticle.aspx?Article=760) to get this working properly function ParamExists(const ParamName: string):...

(* GetParameterValue GetParameterValue will return the value associated with a parameter name in the form of /paramname:paramvalue -paramname:paramvalue and /paramname -paramname ...

function GetFileSize(const FileName: string): Integer; var   sr: TSearchRec; begin   Result := 0;   if FindFirst(FileName, faAnyFile, sr) = 0 then   begin...

Have you ever found yourself adding the same code to different forms?  Well now you can use the following as a base class for all forms. ===============   BEGIN...

Personally I find both the WinAPI MessageBox and Application.MessageBox and MessageDlg functions cludgy and always add the following function to every app. function MsgBox(const...

The following function will attempt to remove the read only flag on a file, you will need the function in this article (http://www.howtodothings.com/ViewArticle.aspx?Article=755). ...

The following function will return True if a file is read only. function IsReadOnly(const FileName: string): Boolean; var   sr: TSearchRec; begin   (* Assume not read...

This is just a quick set of instructions rather than a comprehensive article.  It is a copy of a posting I made in a Borland newsgroup... I'll give you an example of one...

This article demonstrates the basics of how to store and retrieve a Bitmap in an ECO variable. First create an ECO variable in the class you wish to hold the bitmap, for example: ...

With the help of Jonas Hogstrom and Jan Nordén I have written 2 functions to evaluate OCL.First is to evaluate OCL in EcoSpace:  public object EvaluateOclInEcoSpace(IElement...

Here is an example of using different TableStyles depending on the type of the currently selected object in a DataGrid. I have 2 grids, each hooked to ExpressionHandles. I...

ECO allows you to add TaggedValues (name/value pair) to your model at design time.  Here is how to retrieve the value of a TaggedValue at runtime. obj.AsIObject() gives IObject...

This article will explain derived members in ECO.  It's primary purpose is to describe the difference between the ReEvaluateSubscriber and ReSubscribeSubscriber parameters...

The application we are going to build can be used for capturing worktime and breaks during the worktime. The worktime can be captured with multiple clients and the server application...

ECO II has a new feature in Update 2 which makes it easier to see what it is doing behind the scenes. When you run your app you can look in the messages window of the Delphi IDE...

As of D2005 udpate #2 there is a new helper class in the ECO framework named MaxLengthSupportFunctions. Normally when you databind an EditBox for example to an ECO object you...

If you have ever tried reading constraints from an ECO model you have probably noticed by now that there are lots of auto-generated multiplicity constraints. I personally like...

Before updating the database with changes to your objects it is wise to check that the object is in a valid state first.  ECO allows you to model constraints against your...

procedure THtmlMailForm.SendButtonClick(Sender: TObject);begin if FRunning then begin MessageBeep(MB_OK); Display('**** ALREADY RUNNING ****'); Exit; end; FRunning := TRUE; try {...

In a form etc we can evaluate OCL in the DB by using an OclPSHandle, but how do you evaluate OCL in the DB in code? This tip thanks to Jan Norden from Borland. IOclService oclService...

This article will demonstrate how to use code derived associations to implement user-defined class constraints. Code derived association is derived association without provided...

Simple means of making some components data-aware. Alternative data-aware checkboxes (and radiobuttons) that can be arranged more flexibly. Although more recent versions of Delphi...