Convert Entity Collection to Ilist where Entity Collection does not implement IEnumerable

Question

I have a Entity Collection Like this: EntityCollection users;

I want to convert it to a Ilist like this:

systemUsers = new List<CrmSdkTypeProxy.SystemUser>();

where CrmSdkTypeProxy.SystemUser is a type of Entity. However, my Entity Collection is derived from a dll of Microsoft.Xrm.Sdk which does not implement IEnumerable. I am using mscrm 2011 specific dlls.

Any idea on how I create a list like this: .List<CrmSdkTypeProxy.SystemUser>?

What about using the `EntityCollection.Entities` property which is a `DataCollection` which is inherited from `Collection`? — nemesv, Jun 21 '12 at 06:05
Sorry i deleted my answer, because i misunderstood your question. — martinstoeckli, Jun 21 '12 at 07:32

MatteS · Answer 1 · 2012-06-21T10:05:31.930

3

from what I gather from http://msdn.microsoft.com/en-us/library/microsoft.xrm.sdk.entitycollection_members.aspx and the top of my head:

var myList = (from t in myEntityCollection.Entities select t as CRMSDKTypeProxy.SystemUser).ToList();

and linq-less:

var myList = new List<CRMSDKTypeProxy.SystemUser>(myEntityCollection.Entities);

edited Jun 21 '12 at 10:05

answered Jun 21 '12 at 06:05

MatteS

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I could use it like this:var myList = new List(users.Entities); But my actual requirement was :var myList = new List(users.Entities); – CRM_user Jun 21 '12 at 07:31
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I thought that it was implied with "MyEntity" that you could really put any entity type you like in there. But to be very very clear ill update my answer. – MatteS Jun 21 '12 at 10:05

score 3 · Answer 2 · answered Aug 29 '12 at 15:46

3

This worked for me.

Entities is a DataCollection<Entity> which you can convert into an IEnumerable and then use the ToList function to create your List which matches the IList interface that you require.

return service.RetrieveMultiple(query)
                                .Entities
                                .Select(item => item.ToEntity<SystemUser>())
                                .ToList<SystemUser>();

answered Aug 29 '12 at 15:46

fluent

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I think this is the correct and best answer. ToEntity() is the SDK built-in method to do the conversion. – airmanx86 Jan 20 '13 at 23:45
ToEntity() is in fact doing a shallow copy. – airmanx86 Jan 20 '13 at 23:53

score 0 · Answer 3 · answered Jun 21 '12 at 09:43

0

Finally...iterated through the DataCollection and added individual values to the Ilist

answered Jun 21 '12 at 09:43

CRM_user

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Convert Entity Collection to Ilist where Entity Collection does not implement IEnumerable

3 Answers3

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