メイングリッドビュー内にネストされた垂直および水平スクロールを持つグリッドビューがあります。ネストされたグリッドビューに水平および垂直スクロールを実装しました。水平および垂直スクロール中に、このネストされたグリッドビューのヘッダーを修正する必要があります。どうすればこれを行うことができますか？
<asp:GridView ID="GridProjects" runat="server" AutoGenerateColumns="False" Width="100%" OnRowDataBound="GridProjects_RowDataBound" ShowFooter="true" GridLines="None" >
<FooterStyle CssClass="grd_footer_bg grd_row_left" />
<RowStyle CssClass=" grd_odd_row grd_row_left" Wrap="false" />
<HeaderStyle CssClass="grd_hdr_bg grd_row_left" Wrap="false" Font-Bold="True"/>
<AlternatingRowStyle CssClass="grd_evn_row grd_row_left" Wrap="false"/>
<Columns>
<asp:TemplateField HeaderStyle-CssClass="padding" ItemStyle-Width="10px" HeaderStyle-HorizontalAlign="Left" HeaderText="Project Name">
<ItemTemplate >
<table >
<tr>
<td>
<a href="javascript:switchViews('div<%# Eval("ProjectName") %>', 'one','GridProjects_GridResources_3','400', '950' , '40' ,'true');"><img id="imgdiv<%# Eval("ProjectName") %>" alt="Click to show/hide Lesson Lists" border="0"
src="images/expand_button_white.jpg" /></a>
</td>
<td> <asp:Label ID="lblProjName" runat="server" Text='<%# Eval("ProjectName") %>'></asp:Label> </td>
</tr>
</table>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<ItemTemplate>
<tr>
<td colspan="3">
<div style="overflow: hidden;" id="DivHeaderRow">
</div>
<div id="div<%# Eval("ProjectName") %>" onscroll="OnScrollDiv(this)" style="display: none; overflow:auto; position:relative; left: 25px;">
<asp:Panel ID="pnlgrid" runat="server" Width="1309px" ScrollBars="Horizontal">
<asp:GridView ID="GridResources" runat="server" OnRowCreated="rowcreate" OnRowDataBound="GridResources_RowDataBound" CssClass="grid" Width="900px" GridLines="Vertical"
ShowFooter="true" AutoGenerateColumns="false" >
<FooterStyle CssClass="grd_footer_bg grd_row_left" />
<RowStyle CssClass="grd_odd_row grd_row_left" Wrap="False" />
<EditRowStyle BackColor="#999999" />
<SelectedRowStyle CssClass="grd_higlight_row grd_row_left" />
<PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
<HeaderStyle CssClass="grd_hdr_bg grd_row_left fixedHeader" Font-Bold="True" HorizontalAlign="Left"
Wrap="False" />
<AlternatingRowStyle CssClass="grd_evn_row grd_row_left" Wrap="False" />
<Columns>
<%-- <asp:TemplateField>
<ItemTemplate>
<a href="javascript:switchViews('div<%# Eval("ResourceID") %>', 'one');">
<img id="imgdiv<%# Eval("ResourceID") %>" alt="Click to show/hide Lesson Lists" border="0"
src="images/expand_button_white.jpg" /></a>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Vacation/Comp Off">
<ItemTemplate>
<asp:TextBox ID="txtvacatcoff" MaxLength="10" Text='<%# Eval("ReasonVaction") %>' onkeypress="return AllowNumericOnly(this)" runat="server"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="In Between Assignment">
<ItemTemplate>
<asp:TextBox ID="txtinbassign" MaxLength="10" Text='<%# Eval("ReasonInBtnAssignments") %>' onkeypress="return AllowNumericOnly(this)" runat="server"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Internal Project">
<ItemTemplate>
<asp:TextBox ID="txtintproj" MaxLength="10" Text='<%# Eval("ReasonInternalProjects") %>' onkeypress="return AllowNumericOnly(this)" runat="server"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Training">
<ItemTemplate>
<asp:TextBox ID="txttraining" MaxLength="10" Width="80px" Text='<%# Eval("ReasonTraining") %>' onkeypress="return AllowNumericOnly(this)" runat="server"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<%--<asp:BoundField DataField="RevenueForecast" HeaderText="Revenue Forecast" />--%>
<asp:TemplateField HeaderText="Revenue Forecast">
<ItemTemplate>
<asp:Label ID="lblRevenueForecast" Width="80px" Text='<%# Eval("RevenueForecast") %>' runat="server"></asp:Label>
</ItemTemplate>
<FooterTemplate>
<asp:Label ID="lblRevenueTotal" runat="server"></asp:Label>
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Comments">
<ItemTemplate>
<asp:TextBox ID="txtComment" MaxLength="300" Text='<%# Eval("Comment") %>' runat="server"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</asp:Panel>
</div>
<div id="DivFooterRow" style="overflow:hidden">
</div>
</td>
</tr>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>