内容页中如何调用控件问题
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Survey.asp.cs" Inherits="Survey" MasterPageFile="~/TopLevel.master"%>
<asp:Content ID="Content3" ContentPlaceHolderID="head" runat="server">
<form id="form1" runat="server">
用户调查界面</div>
<asp:Label ID="Label1" runat="server" Text="name"></asp:Label>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server"
ControlToValidate="TextBox1" ErrorMessage="用户名不能为空"></asp:RequiredFieldValidator>
<p>
<asp:Label ID="Label2" runat="server" Text="架势时间"></asp:Label>
<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
<asp:Calendar ID="Calendar1" runat="server"></asp:Calendar>
</p>
<asp:Label ID="Label3" runat="server" Text="自行车能力"></asp:Label>
<asp:DropDownList ID="DropDownList1" runat="server"
onselectedindexchanged="DropDownList1_SelectedIndexChanged">
<asp:ListItem>仅在公路骑驶</asp:ListItem>
<asp:ListItem>在森林防火带骑驶</asp:ListItem>
<asp:ListItem>单行道骑驶</asp:ListItem>
<asp:ListItem>山地骑驶和赢得山地竞赛</asp:ListItem>
</asp:DropDownList>
<p>
<asp:CheckBoxList ID="CheckBoxList1" runat="server"
onselectedindexchanged="CheckBoxList1_SelectedIndexChanged">
<asp:ListItem>得到更多公路自行车骑驶经验</asp:ListItem>
<asp:ListItem>得到更多山地自行车骑驶经验</asp:ListItem>
<asp:ListItem>升级我的自行车和得到最新的配件</asp:ListItem>
</asp:CheckBoxList>
</p>
<p>
<asp:Label ID="Label5" runat="server" Text="加试时间"></asp:Label>
<asp:TextBox ID="TextBox3" runat="server" Width="130px"></asp:TextBox>
<asp:RangeValidator ID="RangeValidator1" runat="server"
ControlToValidate="TextBox3" ErrorMessage="取值范围0~~!00" MaximumValue="100"
MinimumValue="0" Type="Integer"></asp:RangeValidator>
</p>
<p>
<asp:Label ID="Label6" runat="server" Text="邮箱"></asp:Label>
<asp:TextBox ID="TextBox4" runat="server"></asp:TextBox>
<asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server"
ControlToValidate="TextBox4" ErrorMessage="不符合邮箱格式"
ValidationExpression="\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*"></asp:RegularExpressionValidator>
</p>
<p>
<asp:Label ID="Label4" runat="server" Text="联系方式"></asp:Label>
</p>
<p>
<asp:DropDownList ID="DropDownList2" runat="server">
<asp:ListItem>不要给我发送销售信息</asp:ListItem>
<asp:ListItem>仅发送来自Adventure Works的销售消息和发送我感兴趣的任何销售信息</asp:ListItem>
</asp:DropDownList>
</p>
<p>
<asp:Button ID="Button1" runat="server" PostBackUrl="~/SurveyReceipt.aspx"
Text="Button" />
</p>
</form>
</asp:Content>
代码如同上面 不去掉 FROM 会显示 只能有一个FROM 去掉FROM 显示TEXTBOX控件只能放在有必须放在具有 runat=server 的窗体标记内。之中