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What is Wrapper Class and Use of Wrapper Class in Salesforce

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by April 18, 2013 APEX, SALESFORCE

What is Wrapper Class and Use of Wrapper Class in Salesforce?

A wrapper or container class is a class, a data structure, or an abstract data type whose instances are collections of other objects.
In Apex and Visualforce this type of class can be extremely useful to achieve lot of businees scenario.

Use of Wrapper Class in Salesforce:

Using Wrapper class for displaying records from two or three or more objects in a single table (based on the businees logic).

Example:
Sometimes we need to display data from different objects (not related to each other) in a table.

Click to see more:
http://wiki.developerforce.com/page/Wrapper_Class
http://www.interactiveties.com/b_visualforce_wrapper_class.php
http://www.interactiveties.com/blog/2012/visualforce-heap-size.php

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