<asp:GridView ID="grvCommentList" runat="server" AutoGenerateColumns="False" PageSize="3" ShowHeader="False" AllowPaging="True" DataSourceID="ObjectDataSource1" EmptyDataText="NO DATA" BorderWidth="0px" OnPageIndexChanged="grvCommentList_PageIndexChanged">
                <Columns>
                    <asp:TemplateField>
                        <ItemTemplate>
                            <asp:HyperLink ID="HyperLink2" runat="server" NavigateUrl=' <%# "mailto:"+ Eval("Mail").ToString() %> ' Text=' <%# Eval("Name").ToString() %> '></asp:HyperLink>
                            <asp:LinkButton ID="lbnDelete" runat="server" Visible="<%# IsEditable %>">Delete</asp:LinkButton><br />
                            <asp:Label ID="Label1" runat="server" Text=' <%# Eval("CommentText").ToString() %> '></asp:Label> <br />
                            <asp:Image ID="Image4" runat="server" ImageUrl="goriz_line.gif" />
                        </ItemTemplate>
                    </asp:TemplateField>
                </Columns>
                <PagerSettings NextPageImageUrl="right_arrow.gif" PageButtonCount="5" PreviousPageImageUrl="left_arrow.gif" />
                <PagerStyle Font-Bold="False" Font-Underline="False" ForeColor="#F61C1C" HorizontalAlign="Center" CssClass="paging" />
                <PagerTemplate>                
                    <asp:ImageButton ID="ImageButton2" CommandName="Page" CommandArgument="Prev" runat="server" ImageUrl="left_arrow.gif" Visible='<%# grvCommentList.PageIndex > 0 %>' />
                    <asp:LinkButton ID="LinkButton1" CommandName="Page" CommandArgument='<%# (Btn1Text(1)).ToString() %>' runat="server" Text='<%# (Btn1Text(1)).ToString() %>' Visible='<%# ((decimal.Divide(grvCommentList.PageIndex, 5) * 5) + 1) <= (grvCommentList.PageIndex + 1) %>'></asp:LinkButton>                   
                    <asp:LinkButton ID="LinkButton2" CommandName="Page" CommandArgument='<%# (Btn1Text(2)).ToString() %>' runat="server" Text='<%# (Btn1Text(2)).ToString() %>' Visible='<%# grvCommentList.PageCount >= Btn1Text(2) %>'></asp:LinkButton>
                    <asp:LinkButton ID="LinkButton3" CommandName="Page" CommandArgument='<%# (Btn1Text(3)).ToString() %>' runat="server" Text='<%# (Btn1Text(3)).ToString() %>' Visible='<%# grvCommentList.PageCount >= Btn1Text(3) %>'></asp:LinkButton>
                    <asp:LinkButton ID="LinkButton4" CommandName="Page" CommandArgument='<%# (Btn1Text(4)).ToString() %>' runat="server" Text='<%# (Btn1Text(4)).ToString() %>' Visible='<%# grvCommentList.PageCount >= Btn1Text(4) %>'></asp:LinkButton>
                    <asp:LinkButton ID="LinkButton5" CommandName="Page" CommandArgument='<%# (Btn1Text(5)).ToString() %>' runat="server" Text='<%# (Btn1Text(5)).ToString() %>' Visible='<%# grvCommentList.PageCount >= Btn1Text(5) %>'></asp:LinkButton>
                    <asp:ImageButton ID="ImageButton3" CommandName="Page" CommandArgument="Next" runat="server" ImageUrl="right_arrow.gif" Visible='<%# (grvCommentList.PageIndex + 1) < grvCommentList.PageCount %>' />
                </PagerTemplate>
            </asp:GridView>

 protected int Btn1Text(int Ind)
        {
            if ((grvCommentList.PageIndex +  1 ) >  5 )
            {
                return (decimal.ToInt32((decimal.Divide(grvCommentList.PageIndex +  1 ,  5 ) *  5 ) +  1 ));
            }
            else
            {
                return Ind;
            }
        }

void ChancgeStyle(LinkButton Btn)
        {
            if (Convert.ToInt32(Btn.CommandArgument) == (grvCommentList.PageIndex +  1 ))
            {
                Btn.CssClass = "SelectedPage";
                Btn.Enabled = false;
            }
            else
            {
                Btn.CssClass = "paging";
                Btn.Enabled = true;
            }
        }

        protected void LinkButton1_Command(object sender, CommandEventArgs e)
        {
            int PartPage =  0 ; // Партия из  5 -ти страниц
            int PageNumbr = grvCommentList.PageIndex +  1 ; // Ноимер текущей страницы
            /* Определение номер парти страниц */
            if (PageNumbr >  5 )
            {
                while (PageNumbr >  5 )
                {
                    PageNumbr = PageNumbr -  5 ;
                    PartPage++;
                }
            }

            switch (e.CommandArgument.ToString())
            {
                case "prev":
                    grvCommentList.PageIndex = (PartPage *  5 ) -  1 ;
                    break;
                case "next":
                    grvCommentList.PageIndex = (PartPage *  5 ) +  5 ;
                    break;
                default:
                    grvCommentList.PageIndex = Convert.ToInt32(e.CommandArgument) -  1 ;
                    break;
            }

            /* Определение новый номер парти страниц */
            PartPage =  0 ;
            PageNumbr = grvCommentList.PageIndex +  1 ;
            if (PageNumbr >  5 )
            {
                while (PageNumbr >  5 )
                {
                    PageNumbr = PageNumbr -  5 ;
                    PartPage++;
                }
            }

            /* Меняем номера страниц на новые */
            LinkButton1.Text = LinkButton1.CommandArgument = Convert.ToString((PartPage *  5 ) +  1 );
            LinkButton2.Text = LinkButton2.CommandArgument = Convert.ToString((PartPage *  5 ) +  2 );
            LinkButton3.Text = LinkButton3.CommandArgument = Convert.ToString((PartPage *  5 ) +  3 );
            LinkButton4.Text = LinkButton4.CommandArgument = Convert.ToString((PartPage *  5 ) +  4 );
            LinkButton5.Text = LinkButton5.CommandArgument = Convert.ToString((PartPage *  5 ) +  5 );

            /* Скрытие контролов */
            if (PartPage ==  0 )
                ImageButton2.Visible = false;
            else
                ImageButton2.Visible = true;

            LinkButton1.Visible = (Convert.ToInt32(LinkButton1.CommandArgument) <= grvCommentList.PageCount);            
            LinkButton2.Visible = (Convert.ToInt32(LinkButton2.CommandArgument) <= grvCommentList.PageCount);
            Label2.Visible = LinkButton2.Visible;
            LinkButton3.Visible = (Convert.ToInt32(LinkButton3.CommandArgument) <= grvCommentList.PageCount);
            Label3.Visible = LinkButton3.Visible;            
            LinkButton4.Visible = (Convert.ToInt32(LinkButton4.CommandArgument) <= grvCommentList.PageCount);
            Label4.Visible = LinkButton4.Visible;            
            LinkButton5.Visible = (Convert.ToInt32(LinkButton5.CommandArgument) <= grvCommentList.PageCount);
            Label5.Visible = LinkButton5.Visible;
            ImageButton3.Visible = (((PartPage *  5 ) +  6 ) <= grvCommentList.PageCount); 

            ChancgeStyle(LinkButton1);
            ChancgeStyle(LinkButton2);
            ChancgeStyle(LinkButton3);
            ChancgeStyle(LinkButton4);
            ChancgeStyle(LinkButton5);
        }