Question

I need some help…

I have my entity that i have create manually.

public class Project()
{
 public Project Data {get;set;}
 public string ProjectID { get; set; }
 public string AreaID { get; set; }
 public string Country { get; set; }
}

Where property “Project” is the the table created by SQLmetal.

I have also created my class, with SQLmetal, wish there have there own entity.
Now i trying to parse between them in the constructor like:

public Project()
{
 ProjectID = Data.ProjectID;
 AreaID = Data.AreaID;
 Country = Data.Country;
}

But when I use

projects.Select(p => new Project { Data = p });

the Data property in the constructor is null.

Any idea why? and how will I solve this the better way?

Answer 1

Yes, because the initializer

var x = new Project { Data = p };

is equivalent to

var x = new Project();
x.Data = p;

The Data property is set AFTER the constructor.

You can solve it by creating a constructor that takes Data as a parameter

public Project(Data data)
{
    this.Data = Data;
    ProjectID = Data.ProjectID;
    AreaID = Data.AreaID;
    Country = Data.Country;
}

and call the constructor

projects.Select(p => new Project(p));