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HomeHomeArchived Discus...Archived Discus...Developing Under Previous Versions of .NETDeveloping Under Previous Versions of .NETASP.Net 2.0ASP.Net 2.0How to remove httpHandler from web.config on module UninstallHow to remove httpHandler from web.config on module Uninstall
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12/11/2009 8:54 AM
 
Sergiy Velychko


Sergiy Velychko's Avatar

forDNN.com
Joined: 7/10/2005
Posts: 376

Dear Colleagues!

Is is possible to remove httpHandler from web.config when client uninstalls the module?

We made a module. This module uses httpHandler. Handler installs on first call of the module (we just add it to the web.config). Module works fine and clients are happy.

But one client tried to uninstall the module and got portal died, because there is not .dll described in the web.config for httpHandler. We have put already big info for admin, so he should click special button before uninstall. But it is not good usabiliy. This is why we look for a way how to remove string with httpHandler from web.config on Uninstall or at least comment it.

Any solution for it?

Thanks.

Sergey

forDNN Team is DotNetNuke Partner 

 
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12/11/2009 10:45 AM
Accepted Answer 
Brandon Haynes Haynes


brandonhaynes.org
Joined: 2/6/2006
Posts: 1172

Hi Sergey,

Assuming you're targeting DotNetNuke 4.6 or later, you can utilize the xmlMerge functionality of the uninstaller to accomplish what you're looking to do.  In a DotNetNuke 5.0 or later manifest, you'll want to add a node to the dotnetnuke/packages/package/components/component/config/uninstall/configuration/nodes element.  With correct path ("configuration/configSections/system.web/httpHandlers/add[type='your type']") and action ("remove"), you should be able to accomplish this task.  Your node will look something like:

                 <node path="configuration/configSections/system.web/httpHandlers/add[type='your type']" action="remove" />

I'm pretty sure this will work in a 4.6-4.9.5 installation, but I could be wrong here.  It will certainly work in 5.0 and beyond.  You can take a look at the manifest for my multi-factor authentication provider for a working demonstration.

Hope this helps!

Brandon

Edit: Charles Nurse also provides a good overview of this functionality in his blog entry from last year.  It includes an example of a web.config node removal in a 4.x manifest.

Brandon Haynes
BrandonHaynes.org
 
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12/11/2009 2:23 PM
 
Sergiy Velychko


Sergiy Velychko's Avatar

forDNN.com
Joined: 7/10/2005
Posts: 376

Brandon

Thank you very much for this Great help!

Yes, we work with new versions 4.x and 5.x and xmlMerge functionality looks like the best solution for this task. I am going to try it and make here small post about results. But think it will be ok. With each year DNN makes more and more good tools. I realy like it :)

Again thank you for your help!

Sergey

forDNN Team is DotNetNuke Partner 

 
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