DataGrid sql分页技术、选中列值 和 checkbox值

 <asp:DataGrid ID="DG1" runat="server" Font-Size="Small" Font-Names="宋体" CellPadding="2"
                                BorderWidth="1px" BackColor="#B7C4CD" BorderColor="#CCCCFF" Width="624px" AutoGenerateColumns="False"
                                PagerStyle-HorizontalAlign="Right" onitemcommand="DG1_ItemCommand" >
                                <SelectedItemStyle ForeColor="GhostWhite" BackColor="DarkSlateBlue"></SelectedItemStyle>
                                <PagerStyle Mode="NumericPages" Visible="False" />
                                <AlternatingItemStyle  间隔颜色BackColor="#E9F4FB"></AlternatingItemStyle>                               
                                <ItemStyle BackColor="White"></ItemStyle> 间隔颜色
                                <HeaderStyle Font-Bold="True" ForeColor="#333399" BackColor="#EBEFF1" Font-Italic="False"
                                    Font-Overline="False" Font-Strikeout="False" Font-Underline="False" HorizontalAlign="Center">
                                </HeaderStyle>
                                <Columns>
                                    <asp:TemplateColumn>
                                        <HeaderStyle HorizontalAlign="Center" Width="13px"></HeaderStyle>
                                        <ItemStyle Width="20px" HorizontalAlign="Center" />
                                        <HeaderTemplate>
                                            <asp:CheckBox ID="Cbx_CheckAll" runat="server" />
                                        </HeaderTemplate>
                                        <ItemTemplate>
                                            <asp:CheckBox ID="Cbx_Delete" runat="server"></asp:CheckBox>
                                        </ItemTemplate>
                                    </asp:TemplateColumn>
                                    <asp:BoundColumn DataField="GetRemark" FooterStyle-Width="25px" HeaderText="文件描述">
                                        <FooterStyle Width="25px"></FooterStyle>
                                    </asp:BoundColumn>
                                    <asp:BoundColumn DataField="GetDocument_Nm" HeaderText="文件名"></asp:BoundColumn>
                                       <asp:TemplateColumn>
                                        <HeaderTemplate>
                                            操作
                                        </HeaderTemplate>
                                        <ItemTemplate>
                                            <asp:ImageButton ID="ibnShow" runat="server" BorderWidth="0px" ImageUrl="Images/show.jpg"
                                                CommandName="Show" />
                                            <asp:ImageButton ID="ibnEdit" runat="server" BorderWidth="0px" ImageUrl="Images/edit.jpg"
                                                CommandName="Edit" />
                                            <asp:ImageButton ID="ibnDelete" runat="server" BorderWidth="0px" ImageUrl="Images/delete.jpg"
                                                CommandName="Delete" />
                                        </ItemTemplate>
                                    </asp:TemplateColumn>
                                </Columns>
                            </asp:DataGrid>

sql 语句分页:

末页：

select * from (SELECT [REMARK],[DOCUMENT_NM],[TYPE],[VERSION_NO],[CREATE_ID],[CREATE_DT],ROW_NUMBER() over (order by [DOCUMENT_NM]) as RowNumber FROM [BM2].[dbo].[DOCUMENT_TBL] WHERE [CMP_ID]='" + CMP_ID + "' AND [PATH]='" + Path + "')  as A Where RowNumber > + (CurrentPage - 1) * PageSize

不是末页（条件改变）：

 as A Where RowNumber between  ((CurrentPage - 1) * PageSize + 1)  AND  CurrentPage * PageSize

DataGrid设置选中列值：

Lbl_Page.Text = e.Item.Cells[1].Text;

 if (((CheckBox)e.Item.FindControl("Checkbox 的id")).Checked)