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Data Type And Data Binding, What’s The Difference

admin — Sat, 16 Jul 2011 00:00:00 +0000

Data type is the actual classification of data that is to be entered into a database. This classification usually follows one of a few forms; integer, floating-pint, or character. The integer is a whole number and has not fractional value. The floating-point is a number that has a decimal point. The character is just readable text.

Data binding is the operating technique that actually binds two data or information sources together. Binding is the idea of synchronizing. It is usually binding with two data or information sources with two different types. XML data binding is an example of data binding and UI data binding is another. XML data binding is just the means to read the actual XML doc as an object. UI data binding is a software design pattern for developing GUI apps.

The major difference between the two is that one is that data type seems to be the actually driver of the information and data binding is the interaction between the information. Source information has to first be recognized or decoded before it is able to be used in any manageable way. The reality is that the two work together to allow the end-user to be able to operate the system.

Control Your Charcters, For Better Understanding

admin — Fri, 15 Jul 2011 00:00:00 +0000

When we open an XML file, we see human-readable text. Thanks to Unicode, a character set used to represent nearly every character written, XML can contain virtually everything. Don’t forget about special characters and control characters, however. Don’t enter them directly into XML. Forgetting about them can make your XML unusable or even make your application crash.

Special characters, such as less-than and greater-than signs (‘<' and '>‘), need to be escaped. How do we escape a character? We use an entity.

Entities are easily viewable when we read an XML file. Entities always start with an ampersand (&) and end with a semicolon (;). For example, insert a less-than and greater-than signs by entering “<” and “>” respectively. Insert an ampersand by entering “&”. Entities are instantly changed into the right character when it is read by your application.

When converting data from other kinds of files, watch out for control characters. Control characters were sometimes used to define data fields, but they can crash your application. Worse, control characters aren’t usually viewable by the human eye. But, once you find them, you can simply delete them. If they are needed, delete the character, then enter ‘&number;’. Replace ‘number’ with the Unicode number for the character.

XML, XSL, DTD’s And Other Abbreviations I Don’t Know

admin — Wed, 13 Jul 2011 00:00:00 +0000

Abbreviations are all over the place when dealing with computers. You are probably wondering what XML, XSL, DTD and the rest of these abbreviations mean. Let’s have a quick rundown of some of them.

XML stands for eXtensible Markup Language. It is a way of describing information in human-readable form. You can describe any information with it by use of tags. It is called a markup language because you wrap text (or other information) with keywords that computer applications interpret.

To make sure XML correctly describes the intended information, a DTD, or Document Type Definition is used. DTD’s are referenced from inside the XML. DTD’s are read by applications that use XML. If XML is driving, a DTD is the rule book we use to drive safely.

DTD’s tell applications what is good data. XSL, on the other hand, helps define how XML should look to someone who wants to look at the XML directly. For example, if you were to click a link to an XML file on the web in a web browser, the DTD helps the browser know the XML is correct. Then, the browser looks at any XSL associated with the XML (an XSLT file). So raw XML turns into a web page, a menu, or nearly anything else.

Watch Your Syntax, Keep It Clean

admin — Sun, 10 Jul 2011 00:00:00 +0000

Many programmers take what they do very seriously. Many also enjoy what they do. But when it comes to programming for a living, nothing is more important than keeping everything clean and tidy. When most programmers do their job, the idea is to get as much work done as quickly as possible and as accurately as possible. However, what many do not realize when they work at such a quick pace is that sometimes mistakes can fall under the radar that can cause a lot of problems, especially when it comes to creating a webpage.

A small mistake can often become a very big problem in the course of website creation. Important things to be mindful of when using programming language are to stay organized and be wary of how things are phrased. Keeping these rules close helps to prevent any further stress that comes with the job. This is because staying organized will help you to find a problem quicker than if everything is messy. You will know exactly where to go if the code is kept neat and tidy. Many programmers love their job, but they often find that the stress and difficulties that come with the job can become significantly less if everything is kept in a neat fashion.