pagination in datagridview

Load your datagridiew with all data.
use link butttons,
like:- First Previous Next Last.

On each click of above link button, keep track of page size & accordingly make rows visible & invisible.

use this in GridView:

<asp:GridView ID="GrdView_Name" runat="server" AllowPaging="true" PageSize="10" PagerSettings-Mode="Numeric" OnPageIndexChanging="GrdView_Name_PageIndexChanging"...........

protected void GrdView_Name_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
    GrdView_Name.PageIndex = e.NewPageIndex;
    // Again call Bind function of GridView
}