使用Request.Headers["accept"] != "*/*"防止页面刷新重提交数据是否有效

使用Request.Headers["accept"] != "/"防止页面刷新重提交数据是否有效

如提
protected void Button1_OnClick(object sender, EventArgs e)
{
        if (Request.Headers["accept"] != "*/*")
        {
            //不是重复提交
            //执行代码
        }
        else
        {
            //重复提交
        }
}

解决方案 »

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最好是仿照csdn上面的,提交后提交按钮隐藏, 页面跳转.
这个我也不清楚，你可以看下这个
转,孟老大的解决方法如何区分刷新和提交？ DetectRefresh.aspx
=========================== <%@   Page   Inherits= "StevenBey.Web.UI.Page "   %>
<html>
<head>
<title> Detecting   Page   Refresh   [Demo] </title>
</head>
<body>
<form   runat= "server ">
<asp:button   Text= "Test   Refresh "   runat= "server "   />
</form>
IsRefresh   =   <%=   IsRefresh   %>
</body>
</html>
StevenBey.Web.UI.Page.cs
======================
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;
}
}
}
不行。
======================================
首次加载（如果直接打开）
GET /csdn/Default2.aspx HTTP/1.1
Accept: */*
Accept-Language: zh-cn
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET4.0C; .NET4.0E)
Host: localhost:26522
Connection: Keep-Alive首次加载（超链接打开）
GET /csdn/Default2.aspx HTTP/1.1
Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/x-ms-application, application/x-ms-xbap, application/vnd.ms-xpsdocument, application/xaml+xml, */*
Referer: http://localhost:26522/csdn/Default2.aspx
Accept-Language: zh-cn
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET4.0C; .NET4.0E)
Host: localhost:26522
Connection: Keep-Alive
按钮事件：
POST /csdn/Default2.aspx HTTP/1.1
Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/x-ms-application, application/x-ms-xbap, application/vnd.ms-xpsdocument, application/xaml+xml, */*
Referer: http://localhost:26522/csdn/Default2.aspx
Accept-Language: zh-cn
Content-Type: application/x-www-form-urlencoded
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET4.0C; .NET4.0E)
Host: localhost:26522
Content-Length: 659
Connection: Keep-Alive
Cache-Control: no-cache__EVENTTARGET=&__EVENTARGUMENT=&__VIEWSTATE=%......&TextBox1=F5刷新提交：
POST /csdn/Default2.aspx HTTP/1.1
Accept: */*
Referer: http://localhost:26522/csdn/Default2.aspx
Accept-Language: zh-cn
Content-Type: application/x-www-form-urlencoded
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET4.0C; .NET4.0E)
Host: localhost:26522
Content-Length: 659
Connection: Keep-Alive
Cache-Control: no-cache__EVENTTARGET=&__EVENTARGUMENT=&__VIEWSTATE=%.....&TextBox1=