是否可以在实体框架中返回实体的所有列数据

Question

Is it possible for a entity class

class mytest
{
    public int id {get;set;}
}

with Entity Framework to query this entity and get all its column out without them being present in the C# class?

Given a table I want to filter based on some columns I know is present and then return all the other columns still, in the case above I know the table as a id column.

Answer 1

You will have to have all the properties that you want materialised into your .Net code defined in the entity class, but you set an interface on the class to defined the "known" fields that you want to query on, such as ID:

public interface IEntity
{
    int Id { get; set; }
}

And then you can use EF to query those defined fields, or you can use the generic methods on the EF context to query certain fields that every entity must have, such as Id:

context.Set<TEntity>().Find(id);

or

context.Set<TEntity>().Where(predicate);

The above assumes TEntity : class, IEntity