This is an example of Angular 2 Grid paging. Paging is a convenient feature which enables you to access parts of the grid by going on a certain page instead of scrolling. You can define the number of rows to be shown on a page. You can define the initial page and the page size of the grid. There are different ways to show the information on the pager and you can also define custom pagers. The grid generates events when the page is changed to show you the relevant details.