下面代码如何更改为 c# 的 CodeBehind 的？

xinuaile 2003-10-13 06:25:25

<%@ language="VB"%>
<%@ import namespace="System" %>
<%@ import namespace="System.Web" %>
<%@ import namespace="System.Web.HttpCookie" %>
<HTML>
<title>Cookies的写入和读取</title>
<script language="VB" runat="server">

Sub btn1(sender as object,e as eventargs)
'判断是否浏览者选取了允许保存Cookies的选项和输入的账号和密码是否为空
if Checkbox1.checked and Not(name.text ="") and Not(ps.text ="") then
'向Cookies中写入浏览者输入的账号和密码
dim cookie as HttpCookie
cookie=new HttpCookie("mychoices")
cookie.Values.Add("name",name.text)
cookie.Values.Add("ps",ps.text)
Dim dt As DateTime = DateTime.Now
'加入当前时间
cookie.Values.Add("time",dt.tostring)
Dim ds As timespan
ds = new timespan(0,0,10,2)
'保存入Cookies
cookie.Expires=dt.add(ds)
response.appendcookie(cookie)

label1.text="成功向Cookies写入"

Else
label1.text="没有存入任何内容到Cookies中"
End If
'为了保证安全性，清空用户的输入
name.text=""
ps.text=""
End Sub

Sub btn2(sender as object,e as eventargs)
'判断是否存在该Cookies
If request.cookies("mychoices") Is Nothing then
label1.text="没有这个Cookies"
Else

dim cookie as HttpCookie
cookie=new HttpCookie("mychoices")
'如果以前保存的用户名和账号不为空则读出账号和密码
If Not(request.cookies("mychoices").values("name") ="") And Not(request.cookies("mychoices").values("ps") = "")
label3.text ="保存在cookies中的用户名：" & "" & request.cookies("mychoices").values("name") & ""
label4.text ="保存在cookies中的密码：" & "" & request.cookies("mychoices").values("ps") & ""
label1.text="成功读出Cookies中内容"

Else
'否则显示错误信息
label1.text="Cookies中没有任何内容"
End If
End If

End Sub

Sub btn3(sender as object,e as eventargs)
'判断是否存在该Cookies
If request.cookies("mychoices") Is Nothing then
label1.text="没有这个Cookies"
Else
'如果以前保存的用户名和账号不为空，则清除账号和密码
If Not(request.cookies("mychoices").values("name") ="") And Not(request.cookies("mychoices").values("ps") = "")
dim cookie as HttpCookie
cookie=new HttpCookie("mychoices")
cookie.Values.Add("name","")
cookie.Values.Add("ps","")
label3.text =""
label4.text =""
Dim dt As DateTime = DateTime.Now
'加入当前时间
cookie.Values.Add("time",dt.tostring)
Dim ds As timespan
ds = new timespan(0,0,10,2)
'保存入Cookies
cookie.Expires=dt.add(ds)
response.appendcookie(cookie)
label1.text="成功清除Cookies中内容"
Else
'否则显示错误信息
label1.text="Cookies中没有任何内容可供清除"
End If
End If

End Sub

</script>
<body>
<h3>Cookies的写入和读取</h3> 
<Form runat="server">

输入您的用户名：<asp:TextBox id="name" Columns="25" MaxLength="30" runat="server" />
 
输入您的密码：<asp:TextBox id="ps" Columns="25" MaxLength="30" runat="server" TextMode="Password" />
<asp:button id="button1" OnClick="btn1" text=" 登录" runat="server" />



<asp:CheckBox id="CheckBox1" runat="server" Checked="True"></asp:CheckBox>
<asp:Label id="Label2" runat="server">保存账号密码到Cookies</asp:Label>


 
<asp:label id="label3" text="" runat="server" />
 
 
<asp:label id="label4" text="" runat="server" />


<asp:button id="button2" OnClick="btn2" text="读出cookies" runat="server" />
<asp:button id="button3" OnClick="btn3" text="清除cookies" runat="server" />
 

<asp:label id="label1" text="" runat="server" />
</Form>

</body>
</HTML>

...全文