新手求助asp.net问题

刚刚开始学，用的是程序设计这本书
聊天室只能写到这种程度
<form id="form1" runat="server">
    <div>
        <div>
            <span  ><strong>简单聊天室<br />
                    <asp:Label ID="Label1" runat="server" Font-Names="宋体" Font-Size="10pt" ForeColor="Blue"
                        Height="189px" Width="396px"></asp:Label><br />
                    <br />
                </strong></span>
        </div>
        <span style="font-size: 10pt"><strong><span>姓名:</span></strong></span><asp:TextBox
            ID="TextBox1" runat="server" Width="118px"></asp:TextBox>
        &nbsp; <strong><span style="font-size: 10pt">内容:</span></strong><asp:TextBox ID="TextBox2"
            runat="server" Height="45px" TextMode="MultiLine" Width="193px"></asp:TextBox>&nbsp;
        <br />
        <br />
        <asp:Button ID="Button1" runat="server" Font-Bold="True"
            Text="提交" />
        <br />
        </div>
    </form>
</body>
</html>
想要有发表表情和管理员清楚的功能
请大神指教啊啊啊~