How to get the related entities by code?

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Posted on by Juanmaprog

Hello,
I am trying to get the collection of related entities and I am not succeeding.

My code:

using (var _service = new OrganizationServiceProxy(new Uri(url), null, clientCredentials, null))
{
    _service.EnableProxyTypes();

    Guid _accountId = new Guid("e7385903-d01f-ea11-a810-000d3a654128");
    Guid _contactId = new Guid("ce30c7ae-cf1f-ea11-a810-000d3a654128");

    var filter = new FilterExpression();
    filter.AddCondition("accountid", ConditionOperator.Equal, _accountId);

    var account = RetrieveFirstOrDefault(filter);

    //How to fill in the account contacts
    //account.ait_account_contact

    return account;
}

I will appreciate any help, thank you.

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Steven RH JIANG on at

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So may I suppose you want to retrieve the account list whose contact field is equal to a specified contact record?

You need to use link entity. Please refer to https://community.dynamics.com/crm/f/microsoft-dynamics-crm-forum/279405/how-to-use-filter-on-link-entity/797943

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Verified answer

Community Member on at

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Hi Juan,

There are two ways you can get the related entities records.

1. By Following below links:

Blog of Inogic: “Retrieve related entity records along wih the Primary entity using Retrieve Method | Microsoft Dynamics 365 CRM Tips and Tricks (inogic.com)”

Other Community post answer: “QueryExpression for all Related Entities - Microsoft Dynamics CRM Forum Community Forum"

2. 2. Other way is using fetchxml:

XRM toolbox -> Fetchxml builder.

Right-click on fetch -> Add/Select parent entity -> Right click on Entity -> Add -> link-entity.

Select Relationship with your link entity then fetchxml builder will auto-populate other fields.

Using the generated fetchxml user can the linked entity records. On explore of this tool, you will find some more useful details.

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