如何跟踪在asp.net中重定向的页面请求-Howtotrackfromwhichpagerequestisredirectedinasp.net

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You best bet it to check the HTTP_REFERER header. It can be spoofed, but more often than not it will be enough.

您最好检查HTTP_REFERER头。它可以被欺骗，但往往这就足够了。

string referer = Request.ServerVariables["HTTP_REFERER"];

1  

You can make use of URL rewriting.
on click of button on calulator1.aspx write

您可以使用URL重写。点击calulator1上的按钮。aspx写

Response.Redirect('menu.aspx?page=cal1')

on click of button on calulator2.aspx write

单击calulator2上的按钮。aspx写

Response.Redirect('menu.aspx?page=cal2')

1  

You can use Page.PreviousPage property, to get the page that transferred control to the current page.
Or using HttpRequest.UrlReferrer property, to get information about the URL of the client's previous request that linked to the current URL.

您可以使用页面。PreviousPage属性，以获取将控件转移到当前页面的页面。或者使用HttpRequest。UrlReferrer属性，以获取与当前URL链接的客户端之前请求的URL的信息。

[Links]
Page.PreviousPage
HttpRequest.UrlReferrer

[链接]页面。PreviousPage HttpRequest.UrlReferrer