How to troubleshoot server errors in asp.net "/" Applications _ Practical Tips

When I'm learning asp.net about validating a control problem, my program always prompts for a problem with a server error in the "/" application. The following figure:

The relevant methods are found on the Internet:

Found in the webconfig.

<appSettings>

    <add key= "Aspnet:usetaskfriendlysynchronizationcontext" value= "true"/>

     < addkey= "Validationsettings:unobtrusivevalidationmode" value= "WebForms"/>

     </appSettings> 

Then delete the <addkey= "Validationsettings:unobtrusivevalidationmode" value= "WebForms"/> .

But when I look at the contents of the configuration file, I find that there is no such content, and it doesn't work to add all that stuff in. Don't think about it, temporarily put aside.

But then there has been the content of this issue, and then carefully read the contents of the configuration file before, found that the second key is for the validation control, and the last property set to "WebForms", before the Internet has seen similar problems, so will The Value property is set to "None" and then run again to succeed.

Add content as:

<add key= "Validationsettings:unobtrusivevalidationmode" value= "None"/>

Hopefully this article provides a solution that will help you successfully resolve server errors in your "/" application.