A Nested-GridView is a GridView control inside the grid row of the parent GridView control.
|It is a parent gridview control which contains a child gridview like
gvChild control and other controls in gridview row like Labels, Buttons etc.
|It is a child gridview control that can also contain some other controls like in parent gridview. It will be nested in
gvParent gridview control.
Parent gridview can be bind using a simple
DataBind function like
gvParent.DataBind();. And for binding Child gridview, you have to bind it in
OnRowDataBound event of parent gridview.