SYS. webforms. pagerequestmanagerservererrorexception: an unknown error occurred while processing

SYS. webforms. pagerequestmanagerservererrorexception: an unknown error occurred while processing the request on the server. The status code returned from the server was: 500 Error Solution

My solution:

In web. config

<System. Web>

<Pages enableeventvalidation = "false"/>

</System. Web>

Reprinted solution:

SYS. webforms. pagerequestmanagerservererrorexception: an unknown error occurred while processing the request on the server. The status code returned from the server was: 500

Add enablepartialrendering = "false" to scriptmanager to display detailed error information.

As follows:

<Asp: scriptmanager id = "scriptmanager1" runat = "server" enablepartialrendering = "false"/>

The general cause is that there are potential dangerous characters on the page. Add validaterequest = "false" to the header"

As follows:

<% @ Page Language = "C #" masterpagefile = "~ /Masterpages/companymanage. Master "autoeventwireup =" true "codefile =" companyintroedit. aspx. cs "inherits =" companyintroedit "Title =" untitled page "validaterequest =" false "%>