How can I implement implicit and explicit casting in ASP.NET Core
Dung Do Tien
Dec 30 2020
262
I'm getting started with C#/.NET Core
I want to implement explicit and implicit casting between 2 classes
I have 2 classes
public class Student
{
public int Id { get; set; }
public string Name { get; set; }
public bool IsActivated { get; set; }
public DateTime DateOfBirth { get; set; }
}
public class StudentDTO
{
public int Id { get; set; }
public string Name { get; set; }
public bool IsActivated { get; set; }
}
I want to convert Student to StudentDTO by using syntax StudentDTO studentDTO = (StudentDTO)student;
But I have compiled error
Error when I convert Student to StudentDTO
How can I do it?
Have 1 answer(s) found.
-
H1
Huyền Trần thị Dec 30 2020
You must implement implicit and explicit operator
Actually, we have some solutions to do that
For example, I have 2 classes Student, StudentDTO
I want to implicit and explicit casting Student to StudentDTO
public class Student { public int Id { get; set; } public string Name { get; set; } public bool IsActivated { get; set; } public DateTime DateOfBirth { get; set; } } public class StudentDTO { public int Id { get; set; } public string Name { get; set; } public bool IsActivated { get; set; } public static explicit operator StudentDTO(Student student) { return new StudentDTO() { Id = student.Id, Name = student.Name, IsActivated = student.IsActivated }; } }After that you can use this syntax anywhere :
StudentDTO dto = (StudentDTO) student;
If you change
explicittoimplicitYou can use this syntax :
StudentDTO dto = student;I hope my solution will help you.
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