📄 default2.aspx
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<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
protected void Button1_Click(object sender, EventArgs e)
{
float rr;
if(TextBox2.Text=="")
Response.Write("请输入初始值．");
else
{
if (RadioButtonList1.SelectedIndex==0)
rr=((float.Parse(TextBox2.Text)-32)*5/9);
else
rr=(float.Parse(TextBox2.Text)*9/5+32);
TextBox3.Text=rr.ToString();
}
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Label ID="Label4" runat="server" BackColor="#FFFFC0" Font-Bold="True" ForeColor="Red"
Text="First we learn how to use controls:" Width="282px"></asp:Label><br />
<br />
<asp:Label ID="Label1" runat="server" Text="let us see a example:" Width="153px"></asp:Label><br />
<br />
<asp:TextBox ID="TextBox2" runat="server" Style="z-index: 100; left: 160px; position: absolute;
top: 121px" ></asp:TextBox>
<asp:TextBox ID="TextBox3" runat="server" Style="z-index: 101; left: 161px; position: absolute;
top: 167px"></asp:TextBox>
<asp:Label ID="Label2" runat="server" Style="z-index: 102; left: 23px; position: absolute;
top: 122px" Text="the former value" Width="110px"></asp:Label>
<asp:Label ID="Label3" runat="server" Style="z-index: 103; left: 49px; position: absolute;
top: 168px" Text="result" Width="51px"></asp:Label>
<asp:RadioButtonList ID="RadioButtonList1" runat="server" Style="z-index: 104; left: 82px;
position: absolute; top: 210px" Width="164px">
<asp:ListItem Selected="True">covert to C</asp:ListItem>
<asp:ListItem>covert to F</asp:ListItem>
</asp:RadioButtonList>
<asp:Button ID="Button1" runat="server" Style="z-index: 105; left: 132px; position: absolute;
top: 291px" Text="Convert" Width="67px" OnClick="Button1_Click" />
<asp:HyperLink ID="Next" runat="server" BackColor="#FFC0FF" ForeColor="Lime" Style="z-index: 107;
left: 297px; position: absolute; top: 291px">Next</asp:HyperLink>
</div>
</form>
</body>
</html>
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