Querying CRM Relationships

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Recently I had to create a query that for a given primary entity would return a set of related target entities and support both 1-many and many-many relationships.

I knew how to do this in separate queries, so I could have some branching logic to see which type of query I needed to perform but that wasn’t a particularly elegant solution. I found the RelationshipQueryCollection, this allows you create a RetrieveRequest against your primary entity and then link in any related targets. All you have to do is specify the relationship name and it will support both 1-many and many-many relationships. If your are using self-referencing relationship be sure the populate relationship.PrimaryEntityRole.

Edit based on comment from daryllabar:

To better explain this function here is a practical example.

  • There is a one to many relationship between contact and account, it is named “account_primary_contact”.
  • The foreign key on the account is…

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Author: Nishant Rana

I love working in and sharing everything about Microsoft.NET technology !

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