I make first SaveChanges and flies exception (UpdateException). And I make second SaveChanges and againe fliyng first erorr.
I was getting an error An object with the same key already exists in the ObjectStateManager. The ObjectStateManager cannot track multiple objects with the same
I\'m investigating replacing or supplementing our home grown ORM system with the Entity Framework 4, and I\'m noticing that the latter may end up causing a conflict between what we\'ve defined as the
I have controller post action public ActionResult Demographics(string submitButton, DemographicsViewModel model)
If I have many to many relation ship in database witch is looking like that: House-HouseType-Type In data model it is looking like that
I want to write a select between two table that have relation. I use this code but i get no result. Please advise me
I\'m using the entity framework 4.0 and I\'m having some issues with the syntax of my query. I\'m trying to join 2 tables and pass a parameter to find the value at the same time.I would like find all
I need handle exception duplicate. var resource = new Reso开发者_C百科urce() { url = tbUrl.Text };
We are working with Trackable Entities on top of EF 4.0. In order to delete an Entity with all its dependent entities I\'m writing a generic DeleteDependentEntities to be called from the Delete metho
I have many to many entities relation ships Trace - Car I want to select select all Traces where Car.TypeId = 1
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