Two table data CRUD operation in One code first Entity Framework - entity-framework

Question

i have two table in City and State.
i want to display city data + st_name from state table in one list.
i have display both table data in one list using below model but.
when i try to perform delete operation in city details its give error how to resolve this issue.??
city model:-
namespace ms2app.Models.Entity
{
public partial class CITY_MASTER
{
public int CT_ID { get; set; }
[Required(ErrorMessage = "Please enter City Code.")]
[StringLength(3, ErrorMessage = "City Code should not be more than {1} characters.")]
public string CT_CODE { get; set; }
[Required(ErrorMessage = "Please enter City Name.")]
[StringLength(100, ErrorMessage = "City Name should not be more than {1} characters.")]
public string CT_NAME { get; set; }
[Required(ErrorMessage = "Please enter STD Code.")]
[StringLength(50, ErrorMessage = "STD Code should not be more than {1} characters.")]
public string CT_STD_CODE { get; set; }
public Nullable<int> CT_ST_ID { get; set; }
public System.DateTime LAST_UPDATE_DATE { get; set; }
public bool IS_DEACTIVE { get; set; }
[Required(ErrorMessage = "Please select state.")]
public string ST_NAME { get; set; }
}
}
My Controller Delete Method:-
public ActionResult Delete(int id)
{
try
{
CITY_MASTER cityMaster = db.CITY_MASTER.Find(id);
cityMaster.IS_DEACTIVE = false;
db.SaveChanges();
return RedirectToAction("Index");
}
catch (Exception ex)
{
throw ex;
}
}

Answer 1

Your logic has no actual delete action to it.
Try this...
public ActionResult Delete(int id)
{
try
{
CITY_MASTER cityMaster = db.CITY_MASTER.Find(id);
cityMaster.IS_DEACTIVE = false;
db.Entry(cityMaster).State = System.Data.Entity.EntityState.Deleted;
db.SaveChanges();
return RedirectToAction("Index");
}
catch (Exception ex)
{
throw ex;
}
}