1. The web part just displayed a loading image, no data shown
  2. The Contextual Ribbon Tab cannot be rendered
  3. I cannot find SPListTreeViewEx in the web part gallery
  4. Failed to activate the license

 

The web part just displayed a loading image, no data shown

Applies to: SPListTreeViewEx 1.x, SPListTreeViewEx 2.x, SPListTreeViewEx 3.x
Summary: The web part depends on jQuery and jQuery UI. However, it found an incompatible version of jQuery loaded on the page.
Cause: The tree view web part isn’t fully compatible with jQuery 1.9 and later.

Resolution:  

If jQuery 1.x has been loaded on the page, and the version number of jQuery is higher that 1.9, you must add a reference to jQuery migrate script just below the reference of jQuery. For example,

<script type="text/javascript" src="http://code.jquery.com/jquery-1.12.4.min.js"></script>
<script type="text/javascript" src="http://code.jquery.com/ui/1.12.1/jquery-ui.min.js"></script>
<script type="text/javascript" src="http://code.jquery.com/jquery-migrate-1.4.1.min.js"></script>

If jQuery 2.x or jQuery 3.x has been loaded on the page, you need to remove it, because the web part isn’t compatible with the version of jQuery.

 

The Contextual Ribbon Tab cannot be rendered

Applies to: SPListTreeViewEx 1.x, SPListTreeViewEx 2.x, SPListTreeViewEx 3.x
Summary: Normally, when the web part gets focus, its contextual Ribbon Tab should be rendered.
Cause: The web part isn’t configured correctly, or the web part feature is deactivated, or the web part is installed with "limited access" permission, or your site upgraded from previous version.

Resolution:  

Open the web part tool pane and verify if the option 'Enable Ribbon Tab' has been selected. If you don't know how to open the web part tool pane, please refer to: Configuring SPListTreeViewEx Web Part

Resolution:  

Please go to [Site Settings]>[Site Collection Administration]>[Site collection features] and check if the web part’s feature is activated in the root site of your SharePoint site collection. If not, activate it.

Resolution:  

If you have an unsuccessful installation with "limited access" permission. Please check permission level of the administrator on the root site of your SharePoint Site Collection in which the web part is installed, you can find out the administrator's permission by clicking [Site Actions]>[Site Permissions], then, from "Edit" Ribbon Tab click "Check Permissions" button and enter the administrator account name.
 
If you find the permission level is Full Control, Limited Access, please correct the incorrect permission setting then run setup.exe with the option "repair" to re-install the web part.   Since the SharePoint permission hierarchy is very complicated and users can stop inheriting permissions on item-level, list-level or site-level, it's not easy to correct the "Limited Access" permission setting. To remove 'Limited Access', please follow these steps:  

Step 1: On the root site of your SharePoint Site Collection, go to [Site Actions]>[Site Permissions], if you find a yellow status bar like this screenshot:

Click "Show me uniquely secured content" link, review every items listed in the form and correct it. 

Step 2: After correcting all broken permissions, go to [Site Actions]>[Site Permissions] again, the status bar should disappear. Then click "Check Permissions" ribbon button to check the administrator permission, if you find the permission level is "Full Control". Congratulation! You have a correct permission setting and you can re-install the web part now.   However, if you find the permission level still is "Full Control, Limited Access" as following, this means the broken permission is given through the specified user group and still incorrect (This is a known SharePoint bug). 

If so, please create a user group with the following settings by clicking "Create Group" ribbon button.


  
Then add the administrator and other users listed from the old group to the new group and delete the old group.  

Step 3: Repeat the previous two steps on each of sub-sites if required.  

For more information about "Limited Access", please read this document.
 

Resolution:  

Did your SharePoint site upgrade from previous version? If so, please review the whole of your upgrade, especially Visual Upgrade. There are more details at technet and other site about upgrading to SharePoint 2010 and Visual Upgrade. Here are some links you can refer to: http://technet.microsoft.com/en-us/library/ee922609.aspx http://technet.microsoft.com/en-us/library/ff607998.aspx

 

I cannot find SPListTreeViewEx in the web part gallery

Applies to: SPListTreeViewEx 1.x, SPListTreeViewEx 2.x, SPListTreeViewEx 3.x
Cause: The web part feature is deactivated, or it is installed with "limited access" permission.

Resolution:   

The web part will not be added into the web part gallery until its feature is activated. Please go to [Site Settings]>[Site Collection Administration]>[Site collection features] and check if the web part’s feature is activated in the root site of your SharePoint site collection. If not, activate it.

Resolution:   

Normally, if you have stopped inheriting permissions on a list item, a list (document library) or a sub-site and granted the administrator a lower permission, you will run into this trouble.  If you have limited access permission, the web part will not be added into the web part gallery even if its feature is activated.   

For possible solutions, see the answer to "The Contextual Ribbon Tab cannot be rendered."

 

Failed to activate the license

Applies to: SPListTreeViewEx 1.x, SPListTreeViewEx 2.x, SPListTreeViewEx 3.x
Cause: You try to upload the license file to SharePoint remotely, or the license file is invalid.

Resolution:  

Please directly save the license file to your Web Front End server before activate it.

Resolution:  

When you failed to activate the license, please take a screenshot of the entire license activation page, and send it to our This email address is being protected from spambots. You need JavaScript enabled to view it.via email.