Implementing a Custom Security Pre-Trimmer with Claims in SharePoint 2013

This post is a contribution from Adam Burns, an engineer with the SharePoint Developer Support team. This post repackages examples that are already out there on MSDN, but brings two examples together and provides some implementation details that may not be obvious in the existing articles. I also tried to leave out confusing details that…

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HOW TO: Retrieve Active Directory custom attributes in another domain using LDAP query

This blog post is a contribution from Aaron Miao, an engineer with the SharePoint Developer Support team. When developing a custom claims provider, you may need to retrieve user information from Active Directory (AD) with LDAP query programmatically. You can add custom attributes by extending the AD schema. Those custom attributes should be usually in…

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