Entity Framework : When child entity is added, a duplicate parent entity is created instead of referencing existing entity?

Entity Framework 6: Adding child object to parent's list vs. setting child's navigation property to parent

I currently have a database with two tables....MailServers... and ...MailDomains... in it....MailDomains... features a foreign key column....MailServerId... indicating the...Id... foremost column in...MailServers... In this case, there is a one-to-many link....I followed ...this piece...'s instructions and used the Entity Data Model Wizard's "Code...

Add stored procedure to entity framework model (.edmx) without refreshing existing entities

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Entity Framework - Updating entity with added/modified child and grandchild entities

I need advise because I'm not sure if I'm going about this the appropriate manner....I have an entity, and this entity has a collection of child entities, each of which has its own collection of child entities. comparable to this (simplified example)...public MyEntity() { public long Id { get; set; } public ICollection<MyChild> Children { g...

Deleting parent-child relation with Entity Framework or Entity Framework Core

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Issue when inserting new entity with relationships to existing entities (Entity Framework Core 1.1.0 )

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EF Core - adding/updating entity and adding/updating/removing child entities in one request

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Tell Entity Framework to use the name "Children" instead of "InverseParent" when generating entities

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Add child entities to database and assign them to parent object in database Entity Framework Core

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Why am I getting duplicate ID columns when using Table Per Hierarchy in Entity Framework Core?

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Add or Update child entities when updating a parent entity in Entity Framework Core

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