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"The type MvcProxyBase cannot be constructed" error after upgrade to Sitefinity 9.1

Sitefinity throws the below error message when running the project after upgrade to version 9.1:   Resolution of the dependency ...

Set View permissions for a document using the API

How to programmatically set the View permissions for a document and grant View permissions only to particular roles?

Export of dynamic content items fails when there are invalid non-printing characters in the content or any text fields

If the content or any other text fields of dynamic content items contain invalid non-printing characters, the export of the ...

Users and roles selector that allows changing permissions doesn`t persist the selected roles/users on different pages

When selecting roles/users in the screen for assigning permissions and there is paging in the selector only the selected roles ...

Get all items in the Lucene search index using the API

How to get all items in the Lucene search index using the API?

How to alter the User Password Reset functionality in the back-end

How to alter the User Password Reset functionality in the User edit dialog in the back-end to send an email with a ...

Azure search reindex timeout with 1000 documents

When using an Azure Search index that has more than 1000 document, re-indexing causes timeout errors.

MVC: Show list of items on the details page

It is not possible for MVC content widgets to show the list of items on the details page of a ...

Cannot Empty Recycle Bin

When trying to delete all the items from the Recycle bin through the backend UI by clicking on the Empty ...

The type or namespace name 'Frontend' does not exist in the namespace 'Telerik.Sitefinity' error on build after upgrade

When trying to build the Sitefinity project after upgrade an error message is thrown in Visual Studio: Error   CS0234  The ...

Make the Dropdown list form widget required and set a validation error message

How to make the Dropdown list form widget required and set a validation message which to be displayed on form ...

Configure modules per site using the API

How to configure providers for modules per site using the API?

Cache-Control headers

What is the difference between the Cache-Control header for pages and media items?

Cannot edit a content item after editing another item in Chrome v.50.0.2661.94

When saving changes on editing an item, if another item of the same type is edited the page will not ...

The ampersand in the links added to the email campaign issues are being encoded when using the Rich Text (HTML) type

The ampersand character in the links which are added to the email campaign issues are being encoded to & when ...

Cannot access the Notifications advanced settings in the backend

Unable to access the Notifications section under Administration -> Settings -> Advanced -> Notifications. When the Notifications section is clicked Sitefinity keeps ...

Custom Order Calculator does not allow a shipping option

When trying to define a Custom Order Calculator which derives from Sitefinity class EcommerceCalculatorBase, there is no shipping option at ...

Load balancing error: "Could not establish trust relationship for the SSL/TLS secure channel"

Sitefinity's Trace.log contains numerous Load Balancing errors, despite the fact that the nodes all have a valid SSL certificate: Message: ...

Telerik.Sitefinity.Pages.Model.ControlPresentation type not found in the system TypeRegistry error after upgrade or after installing Site Sync module

When running the Sitefinity project in browser after an upgrade an error message is thrown: Type not found in the ...

Unable to uncheck the List of email addresses checkbox in form edit and disable notifications for the form

If the List of email addresses checkbox is checked under the Settings tab in form edit and email addresses are ...