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eMag Aug 2014 Issue - Prism Edition

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Each month on or after the 1st, and only once a month, we will send you content from up to 5 community groups. If you select this Prism group, you'll receive the following content below mixed in with the other groups you elect to include.

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  August 2014 - Prism Edition Year 16 Issue 8  
I.T. Discussion Community!


Expert guidance from working professionals!
Company Info topic:
Prestwood IT Social Networking Strategy
by Mike Prestwood

Social networking is a bit confusing! Emailing and calling are still the standards. Is faxing still ok? What about Facebook? Do I friend someone or become a fan of their fan page? Wait, what happened to fan pages? Are they now Facebook pages? What about Facebook groups? What about LinkedIn, YouTube, Twitter, MySpace, and others?

The following articles are posted to the PrestwoodBoards knowledge base:

The Prestwood Strategy: Although we still prefer phone calls and email, we do use social media to reach out. Our primary form of social networking is not with our clients, but with fellow IT professionals at PrestwoodBoards.com. Use the link above to learn more including how to interact with Prestwood IT, our other websites and groups, and our staff including Mike Prestwood.

For more information see...


Coding Services Info topic:
Stabalize Paradox System Audit
by Mike Prestwood

Help stabilize Paradox System with our proprietary procedure including oplocks, BDE settings, software updates (latest appropriate BDE/Paradox), and stabilize computers too. Also includes review of deployment architecture (appropriateness).


IT Water-Cooler for Power-Users topic:
Now It's Easy To Get End-User Problem Reports
by Wes Peterson

In the past it's been a pain to get end-users to give developers an accurate and complete list of the steps they took to get to a problem - especially if screen-shots are desirable.

Now Microsoft has provided a tool that makes the entire process ridiculously easy.






 Prism Group Top 
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Language Basics topic (classic post):
Delphi Prism String Concatenation (+)
by Mike Prestwood

Unlike Delphi, Prism performs implicit casting. To concatenate two strings, a string to an integer, or a string to a floating point number, use the + operator. For example, to convert a floating point number to a string just concatenate an empty string to the number as in "" + 3.2.


OOP topic (classic post):
Delphi Prism Abstraction (abstract, override)
by Mike Prestwood

Prism supports abstract class members and abstract classes using the abstract keyword. An abstract class is a class with one or more abstract members and you cannot instantiate an abstract class. However, you can have additional implemented methods and properties. An abstract member is either a method (method, procedure, or function), a property, or an event in an abstract class. You can add abstract members ONLY to abstract classes using the abstract keyword. Alternatively, you can use the empty keyword in place of abstract if you wish to instantiate the abstract class.


 Monthly Prism Lesson
OOP Topic:
Code Snippet of the Month

In Prism, you specify each class and each class member's visibility with a Class Member Visibility Level preceding the return type. Like Delphi, you group member declarations as part of defining the interface for a class in the Interface section of a unit.

Unlike Delphi, Prism supports a traditional OO approach to member visibility with additional .Net type assembly visibility. For example, private members are truly private to the class they are declared in. In Delphi for Win32, you use strict private for true traditional private visibility.

Prism also supports assembly and protected and assembly or protected which modify the visibility of protected members to include only descendants in the same assembly (and) or publicly accessible from assembly and descendant only outside (or). OO purist might object to assembly and protected and assembly or protected and I suggest you choose the traditional private, protected, and public as your first chose at least until you both fully understand them and have a specific need for them.

Cyborg = public class(System.Object)

private
  //private properties, methods, etc. here.
  FName: String;
protected 
  //protected properties, methods, etc. here.
assembly and protected
  //properties, methods, etc. here.
assembly or protected
  //properties, methods, etc. here.
public
  //properties, methods, etc. here.
end;
Tool Basics Topic:
FAQ of the Month: VCL.Net in Delphi Prism
Question: I'm a big fan of VCL.Net. Is VCL.Net a part of Delphi Prism?

Answer:

No. For existing VCL.Net based applications I recommend you stick with Delphi 2007 until it's time to convert it to Delphi Prism.




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