entity-framework-4.1

I'd like to run actual integration tests of my EF4.1 repositories against an in-memory database a la ayende's nhibernate version . I have a code first model, against a legacy database (old table and column names need mapping to my entites using code configurations). I'd like to be able to use Sqlite (or other) to: Generate an in-memory database from my model Create a DBContext for my model with this in-memory database I have already in place IoC/DI of a IDBContextFactory which gets constructed with my (Generic) Repositories (also using a GenericRepository pattern) There's bits and bobs on-line

I have the following model : class Contract { string ContractID{get;set;} ICollection<Part> Parts{get;set;} } class Part { string PartID{get;set;} ICollection<Contract> Contracts{get;set;} } the problem is that the relationship between Part and Contract also contains the following additional information : class ContractParts { Contract{get;set;} Part{get;set;} Date{get;set;} //additional info Price{get;set;} //additional info } How would I write the Entity Context for this ? Ladislav Mrnka In such case you must model your entities this way: public class Contract { public virtual string

Before this is marked as a duplicate, I have checked the other related posts and they do not answer my question. I am working on a legacy database that has 2 tables that have a 1:1 relationship. Currently, I have one type (1Test:1Result) for each of these tables defined I would like to merge these particular tables into a single class. The current types look like this public class Result { public string Id { get; set; } public string Name { get; set; } public string Text { get; set; } public string Units { get; set; } public bool OutOfRange { get; set; } public string Status { get; set; }

I'm faced with a confusing problem where in my Edit or Create action result methods, EF4 will throw a DbEntityValidationException with the inner message stating: The field Body must be a string or array type with a maximum length of '128'. The model in question looks like this: [Table("tblArticles")] public class Article { [Key] public int ID { get; set; } [Required(ErrorMessage="Title must be included")] public string Title { get; set; } [AllowHtml] public string Body { get; set; } [Required(ErrorMessage="Start Date must be specified")] [Display(Name="Start Date")] [DisplayFormat

I need to update all fields except property1 and property2 for the given entity object. Having this code: [HttpPost] public ActionResult Add(object obj) { if (ModelState.IsValid) { context.Entry(obj).State = System.Data.EntityState.Modified; context.SaveChanges(); } return View(obj); } How to change it to add an exception to obj.property1 and obj.property2 for not being updated with this code? Arthur Vickers Let's assume that you have a collection of the properties to be excluded: var excluded = new[] { "property1", "property2" }; With EF5 on .NET 4.5 you can do this: var entry = context.Entry

I'm learning about Entity Framework at the mo, and am having problems!! Can someone clarify if I am right in thinking that I can't get a parent and a subset of it's children from the db? For example... db.Parents .Include(p => p.Children) .Where(p => p.Children.Any(c => c.Age >= 5)) This will return all Parents that have a child aged 5+, but if I iterate through the Parents.Children collection, all children will be present (not just those over 5 years old). Now the query does make sense to me (I've asked to include children and I've got them!), but can imagine that I would like to have the