What is data source in iPhone?

The datasource is an object that implements the required datasource protocol that is needed to create a complex control.

Ex UITableView is a view that needs a datasource object to which will help building the table. Often it's the controller that is displaying the table view. The protocol that dataSource object ( mostly controller it self) has to implement is “UITableViewDataSource” .

To understand it follow step by step by Process

Step1

When we doesn't connect table view datasource to File owner it show output in iPhone.



Output in iPhone

Here it doesn't show data which is passing using array.

Step2

When we connect table view datasource to File owner it show output in iPhone.

Output in iPhone



Here it show data which is passing using array.