สอบถามหน่อยครับ พอพิมพ์เข้าไปแล้ว กด enter แต่ไม่ขึ้นบรรทัดใหม่อ่ะครับ

<%@ Page Title="" Language="C#" MasterPageFile="~/Masterpage.master" AutoEventWireup="true" CodeFile="TopicReply.aspx.cs" Inherits="TopicReply" %>
<%@ Register Src="~/UserControl/Login.ascx" TagName="Login" TagPrefix="uc1" %>

<asp:Content ID="Content1" ContentPlaceHolderID="Login" Runat="Server">
<uc1:Login ID="ucLogin" runat="server" />
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="Body" Runat="Server">
<table border="1" style="width: 92%">
<tr>
<td style="width:100px"></td>
<td style="width: 700px">หัวข้อ : <asp:Label ID="Topic" runat="server"></asp:Label></td>
</tr>
<tr>
<td style="height: 200px"></td>
<td style="height: 200px; width: 700px;"><asp:Label ID="Detail" runat="server"></asp:Label></td>
</tr>
<tr>
<td></td>
<td style="width: 700px"><asp:Label ID="Time" runat="server"></asp:Label></td>
</tr>
</table>

<br />

<asp:Repeater ID="Reply" runat="server">
<HeaderTemplate>
</HeaderTemplate>
<ItemTemplate>
<table width="92%" border="1">

<tr>
<td style="width:100px">โพสโดย : <%# DataBinder.Eval(Container.DataItem, "TD_BY") %></td>
<td><%# DataBinder.Eval(Container.DataItem, "TD_DESC") %></td>
</tr>
<tr>
<td style="width:100px"></td>
<td><%# DataBinder.Eval(Container.DataItem, "TD_TIME") %></td>
</tr>
<br />
</ItemTemplate>
<FooterTemplate>
</table>
</FooterTemplate>
</asp:Repeater>

<br />

<table width="92%" border="1">
<tr>
<td style="text-align: center; height: 40px; width: 540px;"><textarea id="Answer" runat="server" 
style="height: 109px; width: 250px"></textarea></td>
</tr>
<tr>
<td style="text-align: center; width: 540px;"><asp:Button ID="Save" runat="server" Text="Save" onclick="Save_Click" /></td>

</tr>
</table>

</asp:Content>