MVVM和实体框架中POCO类的含义-MeaningofPOCOclassesinMVVMandEntityFramework

I am trying to understand how WPF binding works in junction with MVVM and Entity Framework. So far I understand databinding as a concept related to properties. However, when it gets to EF I lose understanding of which objects to use to define the Model for database. For instance, I have a Model class for a Category:

我试图了解WPF绑定如何与MVVM和Entity Framework结合使用。到目前为止,我将数据绑定理解为与属性相关的概念。但是,当它到达EF时,我不了解用于定义数据库模型的对象。例如,我有一个类别的Model类:

 public class Category : INotifyPropertyChanged
    {
        string _CategoryId;
        public string CategoryId
        {
            get
            {
                return _CategoryId;
            }
            set
            {
                if (_CategoryId != value)
                {
                    _CategoryId = value;
                    RaisePropertyChanged("CategoryId");
                }
            }
        }

        string _CategoryName;
        public string CategoryName
        {
            get
            {
                return _CategoryName;
            }
            set
            {
                if (_CategoryName != value)
                {
                    _CategoryName = value;
                    RaisePropertyChanged("CategoryName");
                }
            }
        }


        /// 

        /// 
        /// 
        /// 
        void RaisePropertyChanged(string prop)
        {
            if (PropertyChanged != null) { PropertyChanged(this, new PropertyChangedEventArgs(prop)); }
        }
        public event PropertyChangedEventHandler PropertyChanged;

    }

and POCO version:

和POCO版本:

public class CategoryPoco
{
    public CategoryPoco() { }

    public int CategoryId { get; set; }
    public string CategoryName { get; set; }
}

Properties of the non Poco class in my understanding can be then used in databinding. However, I also need to build the database context model:

然后,我理解的非Poco类的属性可用于数据绑定。但是,我还需要构建数据库上下文模型:

public DbSet Categories { get; set; }

Now here is where I lose my understanding, do I use Poco or non-Poco classes when building the context model?

现在我失去了理解,在构建上下文模型时是使用Poco还是非Poco类?

How do I match the two classes when I start exchanging data with the Database?

当我开始与数据库交换数据时,如何匹配这两个类?

1 个解决方案