How do I delete a child entity from a parent collection with Entity Framework 4?
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Published on 2010-05-21T16:29:12Z
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I'm using Entity Framework 4 and have a one-to-many relationship between a parent and child entity. I'm trying to delete a child using the parent repository by removing it from the parent's children collection:
public virtual void RemoveChild(Child child)
{
children.Remove(child);
}
When I try to save the changes I get the following error:
A relationship from the 'ParentChild' AssociationSet is in the 'Deleted' state. Given multiplicity constraints, a corresponding 'Child' must also in the 'Deleted' state.
Surely I don't have to delete the child entity explicitly using a child repository!
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