同一个页面同时多次保存的解决方案

快来打我* 2021-12-05 02:43 273阅读 0赞

习惯的解决方法是存储Session的ID和当提交时ViewState中存储的SessionID相比较来防止用户刷新屏屏幕。前提你的程序中允许了自动回发，如果不是的话，就得在hidden field存储这个变量了。下面给出一个典型的例子。在Page\_Load事件中你存储了第一次提交时的SessionID和一个时间戳。  
protected System.Web.UI.WebControls.Button SubmitButton;

protected System.Web.UI.WebControls.Label RefreshID;

private void Page\_Load(object sender, System.EventArgs e)

\{  
     if (RefreshID.Text.Length == 0)   
    \{  
            RefreshID.Text = Session.SessionID+DateTime.Now.Ticks.ToString();  
      \}  
\}

private void Button1\_Click(object sender, System.EventArgs e)

\{  
      string sesToken = (string) Session\[FrameworkConst.SYNC\_CONTROL\_KEYWORD\];      string pageToken = RefreshID.Text;  
      if (sesToken != null && sesToken != pageToken)  
      \{  
            Response.Write("The Refresh was performed after submit.");  
     \}   
      else  
      \{  
            // do your processing here to avoid Refresh trap  
            Response.Write("The processing is done here. Disabling submit  
button so that user can not perform multiple submit.");  
            Response.Write("But still user can peform Refresh on page.");  
      \}

Session\[FrameworkConst.SYNC\_CONTROL\_KEYWORD\] =       Session.SessionID+DateTime.Now.Ticks.ToString();  
      RefreshID.Text = sesToken;           
      SubmitButton.Enabled = false;

转载于:https://www.cnblogs.com/13306511495/archive/2006/06/02/415370.html