书写错误
<asp:RadioButtonList id="radio1" runat="server">
<asp:listitem id="option1" runat="server" value="madrid" />
<asp:listitem id="option2" runat="server" value="hello" />
<asp:listitem id="option3" runat="server" value="mssszh" />
</asp:RadioButtonList>
<asp:RadioButtonList id="radio1" runat="server">
<asp:listitem id="option1" runat="server" value="madrid" />
<asp:listitem id="option2" runat="server" value="hello" />
<asp:listitem id="option3" runat="server" value="mssszh" />
</asp:RadioButtonList>
<head>
<title>radio button list</title>
<script runat="server" language="c#">
void Page_load()
{
if(Request.Form["radio1"]!=null)
{
Message.Text="you have selected " + Request.Form["radio1"];
}
}
</script>
</head>
<body>
<asp:label id="Message" runat="server"/>
<br/><br/>
which city do you wish to look at hotels for?
<br/><br/>
<form runat="server" ID="Form1">
<asp:RadioButtonList Runat=server ID="radio1">
<asp:listitem id="option1" value="madrid"/>
<asp:listitem id="option2" value="hello"/>
<asp:listitem id="option3" value="mssszh"/>
</asp:RadioButtonList>
<br/><br/>
<input type="Submit">
</form>
</body>
</html>