Http Handlers Issue in Web.config file

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hi experts
i add http handlers in web.config the project is not working... when i remove that tags its fine. what can i do..
i used http handlers for to draw charting

XML

<httphandlers>
  <add path="ChartImg.axd" 
       verb="GET,HEAD,POST" 
       type="System.Web.UI.DataVisualization
                  .Charting
                  .ChartHttpHandler,
         System.Web.DataVisualization,
         Version=4.0.0.0, Culture=neutral,
         PublicKeyToken=31bf3856ad364e35" 
       validate="false"></add>
</httphandlers>

when i add these tags i get error as 500-internal server error

please help me..

Thanks in Advance

Posted 21-May-13 3:56am

NaniCh

Updated 22-May-13 0:43am

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

v5

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Comments

Mahesh Bailwal 21-May-13 9:58am

what error you are getting and what type of HTTP handler you have added?

NaniCh 21-May-13 10:14am

i get error as 500-internal server error

ZurdoDev 21-May-13 10:21am

You need to reply to the user instead of add a new comment to your own question.

Mahesh Bailwal 21-May-13 10:43am

Are you getting this error on some particular aspx page or its happening for whole application?

Please also check that your not adding httphandlers section more than once in web.config file

Pete O'Hanlon 21-May-13 10:45am

Have a look at Eventvwr and see what exceptions are being written there.

TheKarateKid 21-May-13 16:01pm

Please check the section under which you are adding this tag. There are two places where you can add them, one to register handlers with application and the other to register with IIS/Application Server. Both Tag names are different. HttpHandlers - available under System.web i.e system.web -- httphandlers
and second, with web server i.e
system.webserver--handlers

NaniCh 22-May-13 6:42am

ya i used same places.. i give only httphandler tags its fine.. when i write the code into httphandleres tag getting error...
what can i do...

TheKarateKid 22-May-13 9:19am

I assume that you have verb and path attribute values correct. Please check type attribute. Because thats where most of the time typo occurs. Make sure you have it correct as in this format "Namespace.typename, assembly.dll", I made similar errors many times :)

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tumbledDown2earth · Answer 1 · 2013-05-22T18:30:00

Solution 1

The problem here is hidden. You have to enable IIS logs and check the internal exception. Here is how[^]

one of the reasons could be the type is not found in the probaing path.

Posted 22-May-13 18:30pm

tumbledDown2earth