Validation failed for one or more entities on saving data using Entity framework

Question

I have following structure:

Class A{

    Public virtual int Id{get;set;}
    [Required]
    public virtual string Title { get; set; }
    [Required]
    public virtual string Body { get; set; }
}

Class B{

   Public virtual int Id{get;set;}
   [Required]
   public virtual string Description{ get; set; }
}

Class C{

  public virtual int Id{get;set;}
  public virtual int AId {get;set;}
  public virtual A A{get;set;}
  public virtual int BId {get;set;}
  public virtual B B{get;set;}
}

EntityFramework automatically creates tables in database and add references as well.

Now on saving data in Class C its giving me Validation failed for one or more entities

I have checked System.Data.Entity.Validation.DbEntityValidationException

and found that its giving error Title and Body is required. Why I need to pass Title and Body if I am passing AId and BId. and also I have checked if I pass Title and Body then it saves the data in C as well as A and B. I just want to save only in C.

Can you please guide what I am doing wrong.

Thanks in advance.

possible duplicate of [Validation failed for one or more entities. See 'EntityValidationErrors' property for more details](http://stackoverflow.com/questions/7795300/validation-failed-for-one-or-more-entities-see-entityvalidationerrors-propert) — Mohammad Sepahvand, Mar 03 '14 at 06:53

score 0 · Answer 1 · answered Mar 03 '14 at 08:35

Please post the sample code that actually creates and saves the objects.

It's likely because A and B are properties of C. In order to save C, the EF needs first to save A and B and link them to C in a foreign key relationship. You can't have a C without having an A and B and you can't save A without Title and Body as they are required fields.

Without seeing more code it's hard to say for sure.

Validation failed for one or more entities on saving data using Entity framework

1 Answers1