It can be a solution to load your original entity in your business procedure (server side), work with the navigation properties connected, and then save them while you are working detached....In a disconnected environment, for instance, the code below demonstrates how to preserve a category with the child products:...protected void UpdateCategoryWi...
Challenge 1...The solution is really easy:...When Entity Framework is unaware of the properties that make up the relationship, it is unable to define cascade delete....Additionally, there is a third table in a many:many relationship that is in charge of overseeing the relationship. There must be two or more FKs in this table. Instead of configuring...
Comparable to adding a single column of FK is adding composite FK....The PK column(s) of the referenced object should be added first:...public class InvoiceLineProductCode
{
public Guid InvoiceLineId { get; set; }
public InvoiceLine InvoiceLine { get; set; }
public string ProductCodeCategory { get; set; } // <--
public string Produc...
