Asp: GridView分页

 protected void gv_Xm_PageIndexChanging(object sender, GridViewPageEventArgs e)        { 

GridView gv = (GridView)sender;            if (e.NewPageIndex<0)            {                System.Web.UI.WebControls.TextBox pageNum = (System.Web.UI.WebControls.TextBox)gv.BottomPagerRow.FindControl("txtNewPageIndex");                int pa = int.Parse(pageNum.Text);                if (pa<0)                {                    gv.PageIndex = 0;                }                else                {                    gv.PageIndex = pa - 1;                }            }            else            {                gv.PageIndex = e.NewPageIndex;            }

}