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MSDN Abstract Classes Link

Posted By: BangaruBabuPureti     Posted Date: May 31, 2010    Points: 2   Category :C#
MSDN Reference For Abstract Clases

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Abstract Classes vs. Interfaces

The choice of whether to design your functionality as an interface or an abstract class can sometimes be a difficult one. In This article you learn how Abstract Class is differ than Interfaces and How to decide whether to use an interface or an abstract class

Abstract Factory Design in C# , Vb.NET

Provide an interface for creating families of related or dependent objects without specifying their concrete classes

Learning C# and OOP, Classes

This is the second lesson in a miniseries designed to teach you how to write object-oriented programs using C#. This miniseries will describe and discuss the necessary and significant aspects of object-oriented programming (OOP) using C#.

Abstract Factory Design Pattern (Sample in C# and VB .NET)

An abstract factory provides an interface for creating families of related objects without specifying their concrete classes. Sometimes one wants to construct an instance of one of a suite of classes, deciding between the classes at the time of instantiation. In order to avoid duplicating the decision making everywhere an instance is created, we need a mechanism for creating instances of related classes without necessarily knowing which will be instantiated.

Abstract Factory Pattern-Creational Patterns

The Factory pattern allowed us to decouple our client from an object which it uses. The Abstract Factory pattern extends this idea to manage separate families of objects.

A runtime selection, or configuration option, in our client could decide which family of objects is to be used. The Abstract Factory pattern allows us to write generic code to instantiate and use the family objects regardless of which family is chosen at runtime. The pattern also helps us enforce a rule where objects from just the chosen family are used uniformly by the client.

abstract away the source of the connection string using a class with a static property.

ASP.NET provides a configuration system we can use to keep our applications flexible at runtime. In this article we will examine some tips and best practices for using the configuration system for the best results.

The element of a web.config file is a place to store connection strings, server names, file paths, and other miscellaneous settings needed by an application to perform work. The items inside appSettings are items that need to be configurable depending upon the environment, for instance, any database connection strings will change as you move your application from a testing and staging server into production.

Let's abstract away the source of the connection string using a class with a static property.

Singleton Pattern and Abstract Class


I know what Singleton Pattern means and Abstract class means.

What I wanted to know was how would this apply to real world.

Could anyone give me any good example or simple explanation.

Say I have a simple website, why would I use any of the above if any.

Why would it simplify my architechture.

Thanks in advace. 

video tutorial link for composite and rendered custom server control


hii all

i am new to technology so go easy on this post

according to what i read from web there are 3 type of custom server controls

1 superclass

2 composite

3 rendered

i found video tutorial for superclass custom server control but couldnt find video tutials for other 2.

please forward me link for composite and rendered custom server controls video tutorial  

Html Link Button


Hi All,

I would like to create a html link button(in aspx page) so that the page could not post back and some controls to display on clicking link button.

Can any one of you help me regarding this issue?

Let me know if you have any queries.



How to display related tables in one crystal report and how to link this report with combobox?


Hi! I want to display a crystal report in my vb.net application. Suppose I have tables named student details, student marks, student address, etc... Now if I want to display all these details (fields of all tables) in one crystal report (with page breaks if necessary) then how will I achieve it. I will be providing a combo box in my application that contains list of student names. How can I link this combo box with the cystal report to dynamically display report for different student on selected index change of combo box? Help me friends. An example would be appreciable.

Relation between classes in c# with class diagrams



Can anyone provide me an example of one to one and one two many relationship between classes in c# with class diagram and explationation.

Editor's Note: Not Your Father's MSDN


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