Gridview in asp.net

Paging
we need to follow these stpes to implement the paging in gridview

in asp.net page

AllowPaging="true" PageSize="20"
onpageindexchanging="FeaturesListView_PageIndexChanging">

in codebehind page

protected void MyGridView_PageIndexChanging(object sender, GridViewPageEventArgs
e){MyGridView.PageIndex = e.NewPageIndex;
LoadGridView();}