Entity Framework Core updating tables in navigation fields

so in efcore lets say i have an entity Foo and Baz:

public class Foo 
{
  public int Id {get;set;}
  public ICollection<Baz> Bazs {get;set}
}

public class Baz 
{
  public int Id {get;set;}
  public string SomeOtherProp {get;set}
  public int FooId {get;set}
}

public class Foo 
{
  public int Id {get;set;}
  public ICollection<Baz> Bazs {get;set}
}

public class Baz 
{
  public int Id {get;set;}
  public string SomeOtherProp {get;set}
  public int FooId {get;set}
}

my question is if i try to update Foo how can i efcore to only update the FooId property in Baz
if i pass

Foo { Baz { Id: 1, FooId: 2 } }

Foo { Baz { Id: 1, FooId: 2 } }

, i don't want

Baz.SomeOtherProp

Baz.SomeOtherProp

to be null i just want it to stay the same

C#•13mo ago•

3 replies

lime_soft

Entity Framework Core updating tables in navigation fields

so in efcore lets say i have an entity Foo and Baz:

public class Foo 
{
  public int Id {get;set;}
  public ICollection<Baz> Bazs {get;set}
}

public class Baz 
{
  public int Id {get;set;}
  public string SomeOtherProp {get;set}
  public int FooId {get;set}
}

public class Foo 
{
  public int Id {get;set;}
  public ICollection<Baz> Bazs {get;set}
}

public class Baz 
{
  public int Id {get;set;}
  public string SomeOtherProp {get;set}
  public int FooId {get;set}
}

my question is if i try to update Foo how can i efcore to only update the FooId property in Baz
if i pass

Foo { Baz { Id: 1, FooId: 2 } }

Foo { Baz { Id: 1, FooId: 2 } }

, i don't want

Baz.SomeOtherProp

Baz.SomeOtherProp

to be null i just want it to stay the same

Entity Framework Core updating tables in navigation fields

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