asp.net的DataGrid分页控件，在Oracle数据库下,每次只取当前页的数据，不使用存储过程。

写的不算好，仅供参考。
GridPager.ascx:
 <%@ Control Language="c#" AutoEventWireup="false" Codebehind="GridPager.ascx.cs" Inherits="Test.BaseClass.GridPager" TargetSchema="https://schemas.microsoft.com/intellisense/ie5"%><?xml:namespace prefix = asp /><asp:linkbutton id=lbtnPre style="BORDER-RIGHT: white 2px solid; BORDER-LEFT: white 1px solid" runat="server" Text="..." Visible="False"></asp:linkbutton><asp:linkbutton id=lbtnPage1 style="BORDER-RIGHT: white 2px solid; BORDER-LEFT: white 1px solid" runat="server" Text="1" Visible="False" Enabled="False" Font-Size="Small">1</asp:linkbutton> <asp:linkbutton id=lbtnPage2 style="BORDER-RIGHT: white 2px solid; BORDER-LEFT: white 1px solid" runat="server" Text="2" Visible="False"></asp:linkbutton><asp:linkbutton id=lbtnPage3 style="BORDER-RIGHT: white 2px solid; BORDER-LEFT: white 1px solid" runat="server" Text="3" Visible="False"></asp:linkbutton><asp:linkbutton id=lbtnPage4 style="BORDER-RIGHT: white 2px solid; BORDER-LEFT: white 1px solid" runat="server" Text="4" Visible="False"></asp:linkbutton><asp:linkbutton id=lbtnPage5 style="BORDER-RIGHT: white 2px solid; BORDER-LEFT: white 1px solid" runat="server" Text="5" Visible="False"></asp:linkbutton><asp:linkbutton id=lbtnPage6 style="BORDER-RIGHT: white 2px solid; BORDER-LEFT: white 1px solid" runat="server" Text="6" Visible="False"></asp:linkbutton><asp:linkbutton id=lbtnPage7 style="BORDER-RIGHT: white 2px solid; BORDER-LEFT: white 1px solid" runat="server" Text="7" Visible="False"></asp:linkbutton><asp:linkbutton id=lbtnPage8 style="BORDER-RIGHT: white 2px solid; BORDER-LEFT: white 1px solid" runat="server" Text="8" Visible="False"></asp:linkbutton><asp:linkbutton id=lbtnPage9 style="BORDER-RIGHT: white 2px solid; BORDER-LEFT: white 1px solid" runat="server" Text="9" Visible="False"></asp:linkbutton><asp:linkbutton id=lbtnPage10 style="BORDER-RIGHT: white 2px solid; BORDER-LEFT: white 1px solid" runat="server" Text="10" Visible="False"></asp:linkbutton><asp:linkbutton id=lbtnNext style="BORDER-RIGHT: white 2px solid; BORDER-LEFT: white 1px solid" runat="server" Text="..." Visible="False"></asp:linkbutton> <%@ Control Languag