c# - Update database n:n -

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i have 2 classes:

public class richman {  public string id {get;set;} list<car> _cars=new list<car>(); {     public list<car> cars     {                     {                     return this._cars;                 }                 set                 {                     this._cars = value;                     notifychanged("email");                 }      }

}

and

public class car { public string id {get;set;} }

and 3 tables:

richman  id int  cars: id int  , carsofrichmen  idcar int (fk) idrichman (fk)

if collection of cars of richamn change how on database ?

delete records carsofrichmen idrichman id of richam, , in foreach add realtions carsofrichmen ?

is practice ?

no, it's not practice.

cars can have other linked information; changes in cars can trigger other actions.

you must add/delete/update relevant cars [edit] and/or carsofrichmen...


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