I\'m using .NET 4 EF and am trying to save the child entities (InvoiceLogs) of an entity (Invoice). On form submit I have a detached invoice object that has an EntityCollection of modified InvoiceLog
I have a model withs Parents, Children and Grandchildren, in a many-to-many relationship. Using this article I created POCO classes that work fine, except for one thing I can\'t yet figure out.
I\'m trying to run through this msdn article: http://msdn.microsoft.com/en-us/library/dd723645.aspx One of the steps is:
I\'m getting a weird EF4 "Entity Framework v4" error when I do a select on the context: Schema specified is not valid. Errors:
I have an Entity Framework 4 model-first design. I create a first draft of my model in the designer and all was well. I compiled, generated database, etc.
Is it possible to run a query on an EF4.0 data context and get all objects of a certain type? Say the context has books, genres & authors but I only have a generic parameter, t. Is it possible to
I have co-workers working on an Entity Framework model that changes structure 开发者_如何学Python(entities), over time as software development progresses.I\'ve written some utilities that interact wit
We\'re using EF4 in a fairly large system and occasionally run into problems due to EF4 being unable to convert certain expressions into SQL. At present, we either need to do some fancy footwork (DB/C
Does anyone know of or having any good examples of how to use Entity Framework version 2 in the Data Access layer and put an interface on it so the business layer uses the interface rather than knowin
I have a rather deep hierarchy of objects that I\'m trying to persist with Entity Framework 4, POCO, PI (Persistence Ignorance) and Code First.Suddenly things started working pretty well when it dawne
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