ASP.NET留言板代码：简单与复杂实现

1.复杂设计

<asp:TableRow>
      <asp:TableCell>powered by 25175.net
       <asp:table id="Table1" runat="server" BorderStyle="Outset" Width="751px" CellPadding="5" CellSpacing="0" Height="350px" BorderWidth="1px" BorderColor="Black" Font-Size="10pt" BackColor="lightgray">
        <asp:TableRow BackColor="LightGray">
         <asp:TableCell Width="400px" Text="姓名"></asp:TableCell>
         <asp:TableCell>
          <asp:TextBox runat="server" TabIndex="1" ID="txtname" MaxLength="20"></asp:TextBox>
         </asp:TableCell>
         <asp:TableCell HorizontalAlign="Center">
          头像选择：
           <asp:DropDownList runat="server" TabIndex="10" AutoPostBack="True" ID="dlPicSelect" onselectedindexchanged="dlPicSelect_SelectedIndexChanged"></asp:DropDownList>
         </asp:TableCell>
        </asp:TableRow>
        <asp:TableRow BackColor="LightGray">
         <asp:TableCell Width="400px" Text="来自何处"></asp:TableCell>
         <asp:TableCell>
          <asp:TextBox runat="server" TabIndex="2" ID="txtaddr" MaxLength="20"></asp:TextBox>
         </asp:TableCell>
         <asp:TableCell RowSpan="4" HorizontalAlign="Center">
          <asp:Image runat="server" ID="imghead" ImageUrl="pic/1.gif"></asp:Image>
         </asp:TableCell>
        </asp:TableRow>
        <asp:TableRow>
         <asp:TableCell Width="400px" Text="Oicq"></asp:TableCell>
         <asp:TableCell>
          <asp:TextBox runat="server" TabIndex="3" ID="txtqq" MaxLength="20"></asp:TextBox>
         </asp:TableCell>
        </asp:TableRow>

        <asp:TableRow>
         <asp:TableCell Width="400px" Text="Email"></asp:TableCell>
         <asp:TableCell>
          <asp:TextBox runat="server" TabIndex="4" ID="txtemail" MaxLength="20"></asp:TextBox>
         </asp:TableCell>
        </asp:TableRow>
        <asp:TableRow>
         <asp:TableCell Width="400px" Text="主页"></asp:TableCell>
         <asp:TableCell>
          <asp:TextBox runat="server" Rows="1" TabIndex="5" Columns="60" ID="txthttp" MaxLength="100"></asp:TextBox>
         </asp:TableCell>
        </asp:TableRow>
        <asp:TableRow>
         <asp:TableCell Width="400px" Text="留言内容"></asp:TableCell>
         <asp:TableCell VerticalAlign="Top" ColumnSpan="2">
          <asp:TextBox runat="server" Rows="10" TextMode="MultiLine" TabIndex="6" Columns="80" ID="content"></asp:TextBox>
          <asp:RequiredFieldValidator runat="server" ControlToValidate="content" Font-Size="11pt" Font-Names="Arial" ID="Requiredfieldvalidator1">
                                 "请填写留言内容!!"
                            </asp:RequiredFieldValidator>
         </asp:TableCell>
        </asp:TableRow>
        <asp:TableRow HorizontalAlign="Center">
         <asp:TableCell ColumnSpan="3">
          <asp:Button runat="server" BorderStyle="Groove" TabIndex="7" ID="btnsend" Text="就给他两句" onclick="btnsend_Click"></asp:Button>
          <asp:Button runat="server" BorderStyle="Dashed" TabIndex="8" ID="btnreset" Text="清除" onclick="btnreset_Click"></asp:Button>
         </asp:TableCell>
        </asp:TableRow>
       </asp:table>
      </asp:TableCell>
     </asp:TableRow>