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/// ʹÓÃQueryString±äÁ¿
/// </summary>
/// <param name="param1"></param>
/// <param name="param2"></param>
//sourcePage
    Response.Redirect("target.aspx?param1 = hello¶m2 = hi");
//targetPage
    string str1 = Request.QueryString["param1"];
    string str2 = Request.QueryString["param2"];
 
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//setting cookie
    HttpCookie cookie_name =  new HttpCookie("name");
    cookie_name.value = txtName.Text.Trim();
    Response.AppendCookie (cookie_name);
//get cookie
    string name = Request.Cookie["name"].Value.ToString(); 
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//get session
    string name = Session["name"].ToString(); 
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//setting Application
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//get Application
    string name = Application["name"].ToString(); 
Î塢ʹÓÃPostBackUrl()
//sourcePage default1.aspx
<asp:Button ID="Button1" Runat="server" Text="PostToAnotherPage" PostBackUrl="~/default2.aspx">
</asp>
//targetPage default2.cs
if (PreviousPage != null)
{
    TextBox tb = (TextBox)Previous.FindControl("TextBox1");
    string str = tb.Text;
} 
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ViewData["SiteNames"] = WebSite;
if (WebSite.Count > 0)
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ViewData["SiteName"] = WebSite; 
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ÔÚGlobal.asax 
C# code:
<%@ Application Language="C#" %>
<%@ Import Namespace="System.IO" %>
<%@ Import Namespace="System.Threading" %>
<script runat="server">   
 string LogPath;  ......