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eMag Oct 2015 Issue - C# 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 C# group, you'll receive the following content below mixed in with the other groups you elect to include.

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  October 2015 - C# Edition (319 of 4,779 subscribers receive this group's content.) Year 17 Issue 10  
I.T. Discussion Community!


Expert guidance from working professionals!
Web & Marketing Services Info topic:
Domain Transfer
by Gerald Renton

Transfer domain to myHostCafe.com. One or more years is added to your domain registration usually at $9.99/year (i.e. .com price). A minimum of only 1 year needs to be added to transfer.


Coding Services Info topic:
Project Management
by Mike Prestwood

Project management. Generally project management ranges from 10% to 30% of a project budget. However, the amount of project management required depends on the project.


IT Water-Cooler for Power-Users topic:
Windows GREP - Great Tool
by Wes Peterson

You know (or think) the file is out there.  You have a pretty good idea about one or two things that are (or ought) to be in it.  Find it fast with Windows GREP.






 C# Group Top 
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WebForms Coding Tasks topic (classic post):
Using GenericIdentity for Cross Platform Authentication in the .NET framework
by Bryan Valencia

When designing a WinForms application, the most straightforward way to authenticate a user is using NTLM or Active Directory using WindowsIdentity.GetCurrent. Over the Internet, you can use the whole ASP.Net security setup with Membership.GetUser. The GenericPrincipal object works well when you deploy to a mixed web/WinForms environment. See new GenericIdentity.


OOP topic (classic post):
C# Abstraction (abstract, override)
by Mike Prestwood

C# supports abstract class members and abstract classes using the abstract modifier. 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 (implicitly virtual), property, indexer, or event in an abstract class. You can add abstract members ONLY to abstract classes using the abstract keyword.


 Monthly C# Lesson
OOP Topic:
Code Snippet of the Month

Classes and structs can inherit from interfaces in a manner similar to how classes can inherit a base class or struct, but a class or struct can inherit more than one interface and it inherits only the method names and signatures, because the interface itself contains no implementations.

class MyClass: IMyInterface
{  
  public object Clone()

{
return null;
}

// IMyInterface implemented here...
}
interface IMyInterface
{
  bool IsValid();

}
Language Basics Topic:
Definition of the Month: Attribute
An attribute is a "shorthand" mechansim for having additional metadata included in your assembly.

Attributes cause additional metadata to be included in your assembly and, utilized when reflected over by another class. For your convenience, many, many useful attributes are pre-defined.

In C#, attributes are designated by enclusure in square brackets. For example, the [DllImport] attribute allows .NET to utilize Win32 DLLs. Another example is the [Serializable] attribute, which causes your class to be persisted to disk.

C# Topic:
Question: How do I take advantage of Application Virtualization in the application I'm coding?

Answer:

You don't have to do anything special in your application. However, you do have to give certain folders and files the correct rights in your installer.




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