InverseProperty attribute in C#

InverseProperty attribute in C#

In C#, the InverseProperty attribute is used to specify the inverse property of a navigation property in an Entity Framework model. This attribute is used to indicate that the navigation property is inversed with another navigation property in the model. For example, if a "Person" class has a navigation property called "Children" that represents the children of a person, and another class called "Child" has a navigation property called "Parents" that represents the parents of a child, then we can use the InverseProperty attribute to specify that the "Parents" property is the inverse of the "Children" property. This would allow Entity Framework to make inferences about the relationships between individuals in the model and make it easier to query and manage the data. The InverseProperty attribute is used like this:

public class Person
{
    public int Id { get; set; }
    public string Name { get; set; }

    [InverseProperty("Parents")]
    public virtual ICollection<Child> Children { get; set; }
}

public class Child
{
    public int Id { get; set; }
    public string Name { get; set; }

    public virtual ICollection<Person> Parents { get; set; }
}

In this example, we have specified that the "Parents" property of the "Child" class is the inverse of the "Children" property of the "Person" class using the InverseProperty attribute. This will allow Entity Framework to make inferences about the relationships between individuals in the model and make it easier to query and manage the data.

 

作者:Chuck Lu    GitHub    
posted @   ChuckLu  阅读(62)  评论(0编辑  收藏  举报
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