如有页面Admin，则在其cs文件中写如下代码：
protected void Page_Load(object sender, EventArgs e)
{
Response.AddHeader("Cache-Control", "no-cache");
Response.Expires = -1;
Response.Cache.SetNoStore();
Response.AddHeader("Pragma", "no-cache");
Response.AddHeader("Last-Modified", DateTime.Now.ToString() + " GMT");
Response.Cache.SetCacheability(HttpCacheability.NoCache);
if (Session["AdminNumber"] == null)
{
Response.Redirect("~/Login.aspx");
}
}
在Login页的cs文件中写如下代码：
protected void Page_Load(object sender, EventArgs e)
{
Response.AddHeader("Cache-Control", "no-cache");
Response.Expires = -1;
Response.Cache.SetNoStore();
Response.AddHeader("Pragma", "no-cache");
Response.AddHeader("Last-Modified", DateTime.Now.ToString() + " GMT");
Response.Cache.SetCacheability(HttpCacheability.NoCache);
if (!IsPostBack)
{
Session.Clear();
}
}
如此便可轻松拒绝页面的回退！
+++ Cookie01.aspx页面
++ 页面代码如下：
<asp:TextBox ID="TextBox1" runat="server" ForeColor="Red" Width="182px">Name</asp:TextBox>
<asp:Button ID="BtnCookie" runat="server" OnClick="BtnCookie_Click" Text="BtnCookie" /><br />
++ 后台代码如下：
protected void BtnCookie_Cl ......
/* from: http://www.techmango.com/blog/article/DotNet/Explore_Asp_net_postback_mechanism.htm */
__doPostBack作为在asp.net中一个很核心很重要的部分,我们有必要深入了解一下.
其实,__doPostBack是一个很简单的脚本函数.代码如下:
//__doPostBack<input type="hidden" name="__EVENTTARGET" id="__EVENTTA ......
