poco

I'm using Entity Framework 4 with POCO template. I have a List where MyObject are dynamic proxies. I want to use the XmlSerializer to serialize this list, but I don't want them serialized as DynamicProxies but as the underlaying POCO object. I know about ContextOptions.ProxyCreationEnabled, but I do not want to use that. I just want to know how to cast a proxy object to it's underlaying POCO to serialize. Faced the same issue today and used Value Injecter to solve it. It's as simple as: var dynamicProxyMember = _repository.FindOne<Member>(m=>m.Id = 1); var member = new Member().InjectFrom

I'm overriding SaveChanges on my DbContext in order to implement an audit log. Working with many-to-many relationships or independent associations is relatively easy as EF creates ObjectStateEntries for any changes to those kinds of relationships. I am using foreign key associations, and when a relationship between entities changes all you get is an ObjectStateEnty that says for example entity "Title" has "PublisherID" property changed. To a human this is obviously a foreign key in Title entity, but how do I determine this in runtime? Is there a way to translate this change to a "PublisherID"

I am using VS 2012 and EF 5. I have an existing database that I want to create POCO classes from the existing database. I followed the steps to add an ADO.NET Entity Data Model to my project. I went through the wizard to use an existing database. It then created the edmx and tt files with the designer open. However, I want to create the POCO objects and use them. The Microsoft site states that the POCO Entity Framework Generator is obsolete and I should use the DBContext Generator. I can't figure out steps I use to generate the POCO classes. I only see the edmx designer. I really don't even

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Attempting to cutover our EF4 solution to EF CTP5, and ran into a problem. Here's the relevant portion of the model: The pertinent relationship: - A single County has many Cities - A single City has a single State Now, i want to perform the following query: - Get all Counties in the system, and include all the Cities, and all the State's for those Cities. In EF4, i would do this: var query = ctx.Counties.Include("Cities.State"); In EF CTP5, we have a strongly typed Include, which takes an Expression<Func<TModel,TProperty>> . I can get all the Cities for the County no problem: var query = ctx

What is the benefit of using POCO? I don't understand the meaning of Persistence Ignorance, what does this mean? That the poco object can't expose things like Save? I can't wrap my head around this POCO that there's alot of buzz around. What is the difference with the EF generated entities and POCO? Dathan POCO stands for "Plain Old C# Object" or "Plain Old CLR Object", depending on who you ask. If a framework or API states that it operates on POCO's, it means it allows you to define your object model idiomatically without having to make your objects inherit from specific base classes.

I have a POCO with a decimal property called SizeUS. I would like to use data annotations to format the display of the decimal in a view. My SizeUS property is only displaying 2 decimal places in my view and I want it to display 4 decimal places. What is the proper data annotation to accomplish this ? [DisplayFormat( ? )] public decimal SizeUS {get; set;} [DisplayFormat(DataFormatString="{0:#.####}")] See Custom Format Strings for formats and DisplayFormatAttribute for examples 来源： https://stackoverflow.com/questions/20848969/what-is-the-proper-data-annotation-to-format-my-decimal-property

I was looking at this post that describes a simple way to do databinding between POCO properties: Data Binding POCO Properties One of the comments by Bevan included a simple Binder class that can be used to accomplish such data binding. It works great for what I need but I would like to implement some of the suggestions that Bevan made to improve the class, namely: Checking that source and target are assigned Checking that the properties identified by sourcePropertyName and targetPropertyName exist Checking for type compatibility between the two properties Also, given that specifying