這是我當前在GridView中進行的設計，單元格在懸停時變?yōu)槌壬?，這是通過使用CSS實現(xiàn)的。但是我的問題是，如果它是活動的，該如何更改單元格背景色？HTML代碼：（僅GridView） <asp:GridView ID="GridView1" runat="server" PageSize="20" OnPageIndexChanging="GridView1_PageIndexChanging"    AllowPaging="True" OnDataBound="GridView1_DataBound"    Style="position: static">    <PagerSettings Position="Top" Mode="Numeric" />    <PagerStyle ForeColor="Black" HorizontalAlign="Center" Font-Underline="False" CssClass="pager" />    <PagerTemplate>        <table id="tablePager">            <tr style="background-color: #F8F8F8;">                <td>                    <asp:LinkButton ID="First" CommandName="Page" CommandArgument="First" runat="server"                        Text="&lt;&lt; First" Style="color: black" ForeColor="Black" Font-Underline="False"></asp:LinkButton>                </td>                <td>                    <asp:LinkButton ID="Previous" CommandName="Page" CommandArgument="Prev" runat="server"                        Text="&lt; Previous" Style="color: black" ForeColor="Black" Font-Underline="False"></asp:LinkButton>                </td>                <asp:Repeater ID="Repeater1" runat="server" OnItemCommand="Repeater_ItemCommand" OnItemDataBound="Repeater_ItemDataBound" OnLoad="Repeater_Load">                    <ItemTemplate>                        <td id="cell">                            <asp:LinkButton ID="lnkPageNumber" CommandName="Page" runat="server" ForeColor="Black" Font-Underline="False" />                        </td>                    </ItemTemplate>                </asp:Repeater>                <td>                    <asp:LinkButton ID="Next" CommandName="Page" CommandArgument="Next" runat="server"                        Text="Next &gt;" ForeColor="Black" Font-Underline="False"></asp:LinkButton>                </td>                <td>