RadCompression and SharePoint 2010

[ADAM LYTLE]

After adding all the Telerik entires into the web.config of my SharePoint 2010 site the Teleirk controls were working fine. Problem was, I kept noticing other issues like, not being able to connect to the site with SharePoint Designer 2010 (it kept asking for credentials) and not being able to create a new view (was getting error: Cannot complete this action. Please try again.) After many, many hours troubleshooting by several people we were able to narrow it down to the Telerik entries in the web.config. After a couple more hours I discovered that it was directly caused by the RadCompressionModule entry in the web.config. After removing this entry, everything worked great.

Hope this saves someone else some time!
Thanks.
John Perry

[Tsvetoslav]

Hi JIM,

Once again thank you for sharing your discovery of the issue under discussion and taking the pains to caution other developers to the benefit of saving their time.

Regards,
Tsvetoslav
the Telerik team

[romeu sepulcri]

Me too.
After successfully integrating the RadControls and use Visual WebParts had a problem with editing by Sharepoint Designer and also modify the list view.

[Tsvetoslav]

Hello romeu,

We shall need more time to investigated the issue.

Greetings,
Tsvetoslav
the Telerik team

[Tsvetoslav]

Hello romeu, hi Jim,

Unfortunately we were not able to find out the real cause of the problem with RadCompression under SP 2010 as this requires very deep insight into the underpinnings of SharePoint and at what point and in what way the CMS is tampering with the response from the server. However, I am glad to inform you that still there is a solution to the issue. Just exclude the _vti_bin virtual folder from the compressed response as follows:

<telerik.web.ui>
  <radCompression enablePostbackCompression="true">
    <excludeHandlers>
      <add handlerPath="_vti_bin/" matchExact="false" />
    </excludeHandlers>
  </radCompression>
</telerik.web.ui>

Thanks for the understanding.

Greetings,
Tsvetoslav
the Telerik team

[Nick Larter]

Some additional information that may help other users experiencing this problem...

You first need to register a new config section, then paste the RadCompression settings as follows:

<configSections>
    <sectionGroup name="telerik.web.ui">
        <section name="radCompression" type="Telerik.Web.UI.RadCompressionConfigurationSection, Telerik.Web.UI, Version=2011.1.315.35, Culture=neutral, PublicKeyToken=121fae78165ba3d4" allowDefinition="MachineToApplication" requirePermission="false"/>
    </sectionGroup>
</configSections>
<telerik.web.ui>
    <radCompression enablePostbackCompression="true">
        <excludeHandlers>
            <add handlerPath="_vti_bin/" matchExact="false" />
        </excludeHandlers>
    </radCompression>
</telerik.web.ui>

[Tsvetoslav]

Hello Nick,

Thanks for explicitly bringing out this detail. 

Regards,
Tsvetoslav
the Telerik team

[Nick Larter]

I have noticed an issue with the solution described above. Whilst using RadCompression an error page will displayed whenever the SharePoint 2010 "processing" page should be displayed, e.g. when deleting a subsite.

To replicate this issue follow these steps:

• update the Web.config file as described in the above posts
• create a subsite (I used a blog in my instance)
• delete it via site the Site Settngs > Delete this site link

The site is actually deleted, but the "processing" dialog is not displayed, and it isn't redirected to the "Your site has been deleted." page once the operation has completed.

If I removing the RadCompression entries from the Web.config file and retry these steps, everything works as expected.

[Tsvetoslav]

Hi Nick,

Does excluding the _controltemplates/ or _layourts/ folder from the RadCompression processing makes any difference on your side? 

Best wishes,
Tsvetoslav
the Telerik team

[Nick Larter]

Yes, excluding the layouts folder fixed this problem, thank-you. The "deleting your site" page is now displayed as expected. My Web.config now looks like this: 

 

 

<telerik.web.ui>
    <radCompression enablePostbackCompression="true">
        <excludeHandlers>
            <add handlerPath="_vti_bin/" matchExact="false" />
            <add handlerPath="_layouts/" matchExact="false" />
        </excludeHandlers>
    </radCompression>
</telerik.web.ui>