ASP.Net防止页面刷新重复提交

在asp.net中页面刷新则会出现重复提交问题

解决方法一：提交完成后跳转至新页面

解决方法二：网站找的，代码如下

namespace   StevenBey.Web.UI   
  {   
  public   class   Page   :   System.Web.UI.Page   
  {   
    private   bool   _refreshState;   
    private   bool   _isRefresh;   
    
    public   bool   IsRefresh   
    {   
      get   
      {   
      return   _isRefresh;   
      }   
    }   
    
    protected   override   void   LoadViewState(object   savedState)   
    {   
      object[]   allStates   =   (object[])   savedState;   
      base.LoadViewState(allStates[0]);   
      _refreshState   =   (bool)   allStates[1];   
      _isRefresh   =   _refreshState   ==   (bool)   Session["__ISREFRESH"];   
    }   
    
    protected   override   object   SaveViewState()   
    {   
      Session["__ISREFRESH"]   =   _refreshState;   
      object[]   allStates   =   new   object[2];   
      allStates[0]   =   base.SaveViewState();   
      allStates[1]   =   !_refreshState;   
      return   allStates;   
    }   
  }   
  }

使用方法

if (IsRefresh)
 {
     return;
 }