vs2011中GridView嵌套问题，在火狐中显示不正常

<asp:GridView runat="server" ID="gridDict"     Font-Size="Small" 

            EmptyDataText="无数据" Width="100%"  AutoGenerateColumns="False" CellPadding="1" 

            AllowPaging="True"  BackColor="White" BorderColor="#3366CC" BorderStyle="None" 

            BorderWidth="1px" DataKeyNames="Signs" 

            onrowdatabound="gridDict_RowDataBound"

              OnPageIndexChanging="gridDictDetail_PageIndexChanging" >

        <FooterStyle BackColor="#99CCCC" ForeColor="#003399" />

        <RowStyle BackColor="White" ForeColor="#003399" />

        <EmptyDataRowStyle VerticalAlign="Top" />

        <Columns>

            <asp:TemplateField>

                <ItemTemplate>

                    <img alt="" src="../images/plus.jpg" onclick="javascript:expandcollapse('div<%# Eval("ID") %>', 'one');"   id="imgdiv<%# Eval("ID") %>"/>

                </ItemTemplate>

                <ItemStyle Width="40px" />

            </asp:TemplateField>

            <asp:TemplateField HeaderText="选择">

            <HeaderStyle Wrap="False" HorizontalAlign="Center" Width="5%" CssClass="DHBT"></HeaderStyle>

            <ItemTemplate>

            <div style="text-align:center ;">

                <input id="chkDel" value="<%# Eval("Signs") %>" type="checkbox" name="<%# Eval("Id") %>chkDel" onclick="CheckAll(<%# Eval("ID") %>,this)" />

            </div>

            </ItemTemplate>

            <ItemStyle HorizontalAlign="Center"></ItemStyle>

            </asp:TemplateField>

            <asp:BoundField DataField="Name" HeaderText="名称" />

            <asp:BoundField DataField="Signs" HeaderText="标识" />

            <asp:BoundField DataField="Remark" HeaderText="备注" />

        <asp:TemplateField >

                <ItemTemplate>

                <div id="div<%# Eval("Id") %>" style="display:none;position:relative;left:15px;OVERFLOW: auto;WIDTH:100%" >

                    <asp:GridView ID="gridDictDetail" AllowPaging="false" AllowSorting="true" BackColor="White" Width="100%" Font-Size="X-Small"

                        AutoGenerateColumns="false" Font-Names="Verdana" runat="server" ShowFooter="true"

                        GridLines="None"   BorderStyle="Double" BorderColor="#0083C1" >

                        <RowStyle BackColor="Gainsboro"  />

                        <AlternatingRowStyle BackColor="White" />

                        <HeaderStyle BackColor="#0083C1" ForeColor="White"/>

                        <FooterStyle BackColor="White" />

                        <Columns>

                            <asp:TemplateField HeaderText="选择">

                                <HeaderStyle Wrap="False" HorizontalAlign="Center" Width="5%" CssClass="DHBT"></HeaderStyle>

                                <ItemTemplate>

                                <div style="text-align:center ;">

                                    <input id="chkDel" value="<%# Eval("Signs") %>" type="checkbox" name="<%# Eval("Id") %>chkDel" onclick="GetDelIDs()" />

                                </div>

                                </ItemTemplate>

                                <ItemStyle HorizontalAlign="Center"></ItemStyle>

                            </asp:TemplateField>

                            <asp:BoundField DataField="Signs" HeaderText="标识" />

                            <asp:BoundField DataField="Val" HeaderText="名称" />

                            <asp:BoundField DataField="Remark" HeaderText="备注" />

                            <asp:BoundField DataField="IsValid" HeaderText="是否有效" />

                        </Columns>

                    </asp:GridView>

                </div>

                </ItemTemplate>

                <ItemStyle/>

            </asp:TemplateField>

        </Columns>

        <PagerTemplate>

            第<asp:Label id="lblPageIndex" runat="server" text='<%# ((GridView)Container.Parent.Parent).PageIndex + 1  %>' />页 共<asp:Label id="lblPageCount" runat="server" text='<%# ((GridView)Container.Parent.Parent).PageCount  %>' />页  <asp:linkbutton id="btnFirst" runat="server" causesvalidation="False" commandargument="First" commandname="Page" text="首页" /><asp:linkbutton id="btnPrev" runat="server" causesvalidation="False" commandargument="Prev" commandname="Page" text="上一页" /><asp:linkbutton id="btnNext" runat="server" causesvalidation="False" commandargument="Next" commandname="Page" text="下一页" /><asp:linkbutton id="btnLast" runat="server" causesvalidation="False" commandargument="Last" commandname="Page" text="尾页" /><asp:textbox id="txtNewPageIndex" runat="server" width="20px" text='<%# ((GridView)Container.Parent.Parent).PageIndex + 1  %>' /><asp:linkbutton id="btnGo" runat="server" causesvalidation="False" commandargument="-1" commandname="Page" text="GO" OnClick="Turn_Click" />

        </PagerTemplate>

        <PagerStyle BackColor="#99CCCC" ForeColor="#003399" HorizontalAlign="Right"/>

        <SelectedRowStyle BackColor="#009999" Font-Bold="True" ForeColor="#CCFF99" />

        <HeaderStyle BackColor="#003399" Font-Bold="True" ForeColor="#CCCCFF" />

    </asp:GridView>

    private void BindGrid()

    {

        this.gridDict.DataSource = daldict.GetList("").Tables[0];

        this.gridDict.DataBind();

    }

    protected void gridDict_RowDataBound(object sender, GridViewRowEventArgs e)

    {

        GridViewRow row = e.Row;

        string strSort = string.Empty;

        if (row.DataItem == null)

        {

            return;

        }

        GridView gv = new GridView();

        GridView gv4 = new GridView();

        gv = (GridView)row.FindControl("gridDictDetail");

        if (e.Row.RowType == DataControlRowType.DataRow)

        {

            string datakey = this.gridDict.DataKeys[e.Row.RowIndex].Value.ToString();

            gv.DataSource = daldictdetail.GetList("Signs='" + datakey + "'").Tables[0];

            gv.DataBind();

        }

    }

补充：.NET技术 ,  ASP.NET

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