ASP.Net(Custom Paging In GridView With C#.Net)

//Step01: Create DataView Object

DataView dv = new DataView();

//Step02: Create Method To Show The Data Into The Grid

private DataView bindgrid()

    {

        strQuery = "SELECT a.* FROM <table_name> a";

        layer = new DALayer();

        ds = new DataSet();

        ds = layer.FetchRecords(strQuery, ref strError);

        if (ViewState["sortExpr"] != null)

        {

            dv = new DataView(ds.Tables[0]);

            dv.Sort = (string)ViewState["sortExpr"];

        }

        else

        {

            dv = ds.Tables[0].DefaultView;

        }

        return dv;

    }

//Step03: Write Into Page Index Changing Event Of The Grid
protected void grdCity_PageIndexChanging(object sender, GridViewPageEventArgs e)

    {

        grdCity.PageIndex = e.NewPageIndex;

        grdCity.DataSource = bindgrid();

        grdCity.DataBind();

        grdCity.HeaderRow.Visible = true;

        grdCity.BottomPagerRow.Font.Underline = true;

    }