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public class SubmitOncePage : System.Web.UI.Page
{
private string _strSessionKey;
private string _hiddenfieldName;
private string _strLastViewstate;
public SubmitOncePage()
{
_hiddenfieldName = "__LastVIEWSTATE_SessionKey";
_strSessionKey = System.Guid.NewGuid().ToString();
_strLastViewstate = string.Empty;
}
public bool IsRefreshed
{
get
{
string str1 = GetSessinContent();
_strLastViewstate = str1;
string str2 = this.Session[GetSessinKey()] as string;
bool flag1 = (str1 != null) && (str2 != null) && (str1 == str2);
//str1¾ÍÊÇRequest.Form["__VIEWSTATE"];¾¹ýMD5¼ÓÃÜ
return flag1;
}
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public class VideoPlayer
{
/// <summary>
/// Éú³ÉÊÓÆµ²¥·ÅÆ÷µÄHTM ......
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[WebMethod(EnableSession = true)]
public string Login(string name)
{
  ......
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Xml;
namespace jiu ......