Filtering Entities with type Entity Reference?

Question

How do I query using the string value for an entity reference object?

QueryExpression query = new QueryExpression(\"entityName\");
query.Criteria = new FilterExp         


        

Answer 1

You need to filter on the name attribute of the associated account entity.

Join the account entity to the opportunity entity and apply a ConditionExpression to it like this:

var query = new QueryExpression("opportunity");
LinkEntity link = query.AddLink("account", "parentaccountid", "accountid");
link.AddCondition("name", ConditionOperator.BeginsWith, "14");