c# - Setting "this" equal to an existing object in a constructor -

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• c# class constructor assigning 'this' 2 answers

a kind of weird question, i'm hoping there's out there shorten process or else i'll have many many times each project.

we've made shift toward mvc in our office , we're building "entity classes" of our objects. in order enforce levels of reusability, i've separated core functions of entity database presents particular issue constructors. way i've written dal piece stand-alone static class (to hide outside world) returns objects need ... have copy fields class via constructor , i'm hoping better way.

public class myobj{     public int id { get; set; }     public string name { get; set; }     public bool isactive { get; set; }     public datetime createdate { get; set; }       public myobj(int prmid){          list<myobj> raw = dal.get(prmid);           if(raw.count != 1)              throw new exception("invalid number of objects returned");           id = raw[0].id;          name = raw[0].name;          isactive = raw[0].isactive;          createdate = raw[0].createdate;     }       static class dal {          public static list<myobj> get(int? prmid){               // database stuff call stored procedure , return 0 or more myobjs          }     } } 

where i'm doing copying raw[0], there way of saying "this = raw[0]" ?

i'm doing same structure in number of entities, shortcut appreciated.

you have made architectural mistakes:

the first 1 domain model entity must not know how must saved / loaded. you've broken single responsibility principle.you must have repository or other pattern on them handles persistance logic.

the second mistake speaking you've introduced concrete dependency domain model entity ( dal class seen concrete type in domain model entity). bad habbit , violated inversion of control principle , general spoken "code on abstraction , not on concrete implementations" rule.