How to create and delete data from entity relationship many-to-many in CRM 2011?
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25-10-2019 - |
Question
How to create and delete data from entity relationship many-to-many in crm 2011?
Code:
QueryExpression qry = new QueryExpression();
qry.EntityName = "entity1_entity2";
qry.ColumnSet = new ColumnSet(true);
var re = crmservice.RetrieveMultiple(qry).Entities;
crmservice.Delete("entity1_entity2", re[0].Id);
FaultException: The 'Delete' method does not support entities of type 'entity1_entity2'.
Solution
In order to link two records via a N:N relationship, you have to use the Associate/Disassociate request or the corresponding methods of the service proxy.
This will create/delete the corresponding record of the entity1_entity2 entity.
OTHER TIPS
using Microsoft.Crm.Sdk.Messages;
...
// get the crm service
...
AssociateEntitiesRequest fooToBar = new AssociateEntitiesRequest
{
Moniker1 = foo, // foo is an entity reference
Moniker2 = bar, // bar is an entity reference
RelationshipName = "foo_bar", // name of the relationship
}
service.Execute(fooToBar) // relates foo and bar
Here's a blog post: http://charithrajapaksha.blogspot.com/2011/08/creating-many-to-many-records-in-crm.html
For Delete you try below
// Create an AssociateEntities request.
//Namespace is Microsoft.Crm.Sdk.Messages
DisassociateEntitiesRequest request = new DisassociateEntitiesRequest();
// Set the ID of Moniker1 to the ID of the lead.
request.Moniker1 = new EntityReference
{
Id = moniker1.Id,
LogicalName = moniker1.Name
};
// Set the ID of Moniker2 to the ID of the contact.
request.Moniker2 = new EntityReference
{
Id = moniker2.Id,
LogicalName = moniker2.Name
};
// Set the relationship name to associate on.
request.RelationshipName = strEntityRelationshipName;
// Execute the request.
service.Execute(request);
In N:N Relationships the records should be associated and disassociated. you can't create and delete records in N:N Relationship. you can use AssociateRequest, DisassociateRequest classes or you can use Associate, Disassociate Messages in Plugin Registration tool.