ASP.NET MVC 5 中自动生成的 EDMX class 的构造函数

Question

I have an auto generated context class in my ASP.NET MVC 5 project. I want some operation to be done on object creation of this class. Instead of editing the constructor in this auto generated class(Which I heard is not recommended), Is there some other way to do this?

When I use,

  var cntx = new DataBaseEntities();

I want some other operation to be taken care of. but This DatabaseEntities is an auto generated class. Is there any way to do this?

Answer 1

The best I can suggest is a factory method:

private DataBaseEntities(string contextName) : base(contextName) { }

public static DataBaseEntities Create() {
    return new DataBaseEntities(ContextName);
}

and use DataBaseEntities.Create() rather than new DataBaseEntities()

var cntx = new DataBaseEntities.Create();