'OrganizationStructure ID' is an invalid column name in Entity Framework.



I got the message ERROR: OrganizationStructure ID is an invalid column name.

    public OrganizationStructure()
        ChildrenItems = new HashSet<OrganizationStructure>();
        InputDate = DateTime.Now;

    public int ID { get; set; }
    public string Name { get; set; }

    public virtual int? ParentID { get; set; }
    public int OrganizationID { get; set; }
    public int OrganizationTypeID { get; set; }
    public int OrganizationActivityID { get; set; }
    public int OrganizationLocationID { get; set; }

    public string AddRemark { get; set; }
    public int UserId { get; set; }
    public DateTime InputDate { get; set; }
    public int? RemAttr { get; set; }

    public virtual ICollection<OrganizationStructure> ChildrenItems { get; set; }


    return View(_organizationStructureRepository.GetAll().ToList() 
             .Where(t => t.ParentID == null));
1/25/2012 3:55:45 AM

Accepted Answer

You failed to connect your FK property with a navigation property, which is why. I predict theParentID should refer to the parentsOrganizationStructure and ChildrenItems should highlight youngstersOranizationStructures .

If your model is missingParent parent navigation propertyOrganizationStructure You must instruct EF using fluent-API.ParentID is FK:

            .HasMany(o => o.ChildrenItems)
            .HasForeignKey(c => c.ParentID);
1/25/2012 9:49:00 AM

Popular Answer

I've discovered that when an ICollection mentions a table and there isn't a column it can identify, it makes one for you to attempt to link the tables. This notably occurs with ICollection, and attempting to figure it out has drove me "batty."

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