EF 6数据库首先使所有属性在生成的实体类中虚拟化

Question

I have a db first edmx model. The partial classes it generates have non-virtual simple properties. Eg

//------------------------------------------------------------------------------
// <auto-generated>
//     This code was generated from a template.
//
//     Manual changes to this file may cause unexpected behavior in your application.
//     Manual changes to this file will be overwritten if the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------

    public partial class Entity
    {
     public int Id {get;set;} //not virtual
     public string SomeOtherProperty {get;set;} //also not virtual
     public virtual ICollection<RelatedEntity> RelatedCollection {get;set;} //but 'navigational' properties are virtual.
    }

How to tell the designer to make all properties virtual?

Answer 1

There is a simple solution.

Inside the file, find the CodeStringGenerator class, lookup this method:

public string Property(EdmProperty edmProperty)
{
    return string.Format(
        CultureInfo.InvariantCulture,
        "{0} {1} {2} {{ {3}get; {4}set; }}",
        Accessibility.ForProperty(edmProperty),
        _typeMapper.GetTypeName(edmProperty.TypeUsage),
        _code.Escape(edmProperty),
        _code.SpaceAfter(Accessibility.ForGetter(edmProperty)),
        _code.SpaceAfter(Accessibility.ForSetter(edmProperty)));
}

One simple edit will be enough:

public string Property(EdmProperty edmProperty)
{
    return string.Format(
        CultureInfo.InvariantCulture,
        "{0} {1} {2} {{ {3}get; {4}set; }}",
        //make properties virtual.
        AccessibilityAndVirtual(Accessibility.ForProperty(edmProperty)),
        _typeMapper.GetTypeName(edmProperty.TypeUsage),
        _code.Escape(edmProperty),
        _code.SpaceAfter(Accessibility.ForGetter(edmProperty)),
        _code.SpaceAfter(Accessibility.ForSetter(edmProperty)));
}

And that's it, for reference of future generations.