WebApr 6, 2024 · The entity models are a base type and several derived types. To simplify, lets assume that the base type is Shape and the derived types are Circle and Rectangle. According to the .Net Core specification, we can use same controller from base type with specific actions to perform CRUD operation on the derived types. The routing template … WebJan 18, 2024 · Here is what I came up with instead. It puts the assembly scanning in the mapping code but seems to work. First, I created an extension method to get the derived classes (which optionally can ignore particular types by name): public static Type [] GetDerivedClasses (this Type type, string [] ignoreTypeNames = null) { …
Entity Framework Architecture in .NET - Dot Net …
WebMar 29, 2024 · If the principal entity type uses TPC, then only the entity types that don't have any descendants can use table splitting. Otherwise the dependent columns would need to be duplicated on the tables corresponding to the derived types, complicating all interactions. Entity splitting. EF Core allows to map an entity to rows in two or more tables. WebSep 13, 2024 · A key cannot be configured on 'Person' because it is a derived type. The key must be configured on the root type 'User'. If you did not intend for 'User' to be included in the model, ensure that it is not included in a DbSet property on your context, referenced in a configuration call to ModelBuilder, or referenced from a navigation property on ... floating wind solutions olav olsen
ef-core load collection property of nested tph inherited member
WebFeb 16, 2024 · EF Core 5 "is invalid inside an 'Include' operation, since it does not represent a property access" 0 The expression 'tp.Tag_Posts.AsQueryable().Select(t => t.Tag)' is invalid inside an 'Include' operation, since it … WebFeb 4, 2014 · The question does not specify EF version and the proposed answer does not work anymore for Entity Framework Core (in EF Core, DbContext does not have a non-generic Set method, at least at the date of this answer). Yet you can still have a working extension method using Jon Skeet's answer to this question.My code is added below for … WebI have a question concerning EF Core 2.1. I have a base type, let's name it Customer, from which CustomerOld and CustomerNew are derived. These are automatically stored in one table, so far so good. Now I have a generic type for mapping Customer to Product: . public class CustomerToProduct where T : Customer { public int CustomerId { get; set; } … floating wind solutions 2023 houston