Convert single class to complex class

Hi,

I am facing a issue, I have a class called Question and i want to write a converter Question to Subject. How can i write a converter. Conversion happen on dynamic not static.

Input class

public class Question

{

public int SubjectId { get; set; }

public string SubjectName { get; set; }

public int SubjectOrder { get; set; }

public string SubjectDescription { get; set; }

public int QuestionId { get; set; }

public string QuestionName { get; set; }

public int QuestionOrder { get; set; }

public string QuestionDescription { get; set; }

}

Output Class

public class Subject {

public int SubjectId { get; set; }

public string SubjectName { get; set; }

public int SubjectOrder { get; set; }

public string SubjectDescription { get; set; }

public List QuestionDetails { get; set; }

}

public class QuestionDetail {

public int QuestionId { get; set; }

public string QuestionName { get; set; }

public int QuestionOrder { get; set; }

public string QuestionDescription { get; set; }

}

How can i do that. Please help me.

Hi Tapan,

List obj = new List();

obj.Add(new Question { SubjectId = 1, SubjectName = "Hindi", SubjectDescription = "Hindi", SubjectOrder = 2, QuestionId = 1, QuestionName = "Prem Chand", QuestionDescription = "Prem Chand", QuestionOrder = 1 });

obj.Add(new Question { SubjectId = 1, SubjectName = "Hindi", SubjectDescription = "Hindi", SubjectOrder = 2, QuestionId = 2, QuestionName = "Kabir Das", QuestionDescription = "Kabir Das", QuestionOrder = 2 });

obj.Add(new Question { SubjectId = 1, SubjectName = "Hindi", SubjectDescription = "Hindi", SubjectOrder = 2, QuestionId = 3, QuestionName = "Surdas", QuestionDescription = "Surdas", QuestionOrder = 3 });

obj.Add(new Question { SubjectId = 2, SubjectName = "Math", SubjectDescription = "Math", SubjectOrder = 1, QuestionId = 4, QuestionName = "Arya Bhatt", QuestionDescription = "Arya Bhatt", QuestionOrder = 2 });

obj.Add(new Question { SubjectId = 2, SubjectName = "Math", SubjectDescription = "Math", SubjectOrder = 1, QuestionId = 5, QuestionName = "Varahamihira", QuestionDescription = "Varahamihira ", QuestionOrder = 1 });

obj.Add(new Question { SubjectId = 3, SubjectName = "Physics", SubjectDescription = "Physics", SubjectOrder = 3, QuestionId = 6, QuestionName = "Abdul Kalam", QuestionDescription = "Abdul Kalam", QuestionOrder = 1 });

and output should be like

List obj = new List();

List obj1 = new List();

List obj2 = new List();

List obj3 = new List();

obj1.Add(new QuestionDetail { QuestionId = 1, QuestionName = "Prem Chand", QuestionDescription = "Prem Chand", QuestionOrder = 1 });

obj1.Add(new QuestionDetail { QuestionId = 2, QuestionName = "Kabir Das", QuestionDescription = "Kabir Das", QuestionOrder = 2 });

obj1.Add(new QuestionDetail { QuestionId = 3, QuestionName = "Surdas", QuestionDescription = "Surdas", QuestionOrder = 3 });

obj2.Add(new QuestionDetail { QuestionId = 4, QuestionName = "Arya Bhatt", QuestionDescription = "Arya Bhatt", QuestionOrder = 2 });

obj2.Add(new QuestionDetail { QuestionId = 5, QuestionName = "Varahamihira", QuestionDescription = "Varahamihira ", QuestionOrder = 1 });

obj3.Add(new QuestionDetail { QuestionId = 6, QuestionName = "Abdul Kalam", QuestionDescription = "Abdul Kalam", QuestionOrder = 1 });

obj.Add(new Subject { SubjectId = 1, SubjectName = "Hindi", SubjectDescription = "Hindi", SubjectOrder = 2, QuestionDetails = obj1 });

obj.Add(new Subject { SubjectId = 2, SubjectName = "Math", SubjectDescription = "Math", SubjectOrder = 1, QuestionDetails = obj2});

obj.Add(new Subject { SubjectId = 3, SubjectName = "Physics", SubjectDescription = "Physics", SubjectOrder = 3, QuestionDetails = obj3 });

I am not understand what you are talking about. Can you please provide the code of that.

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

Kiran Thakur10y ago
Hi Tapan,
List obj = new List();
obj.Add(new Question { SubjectId = 1, SubjectName = "Hindi", SubjectDescription = "Hindi", SubjectOrder = 2, QuestionId = 1, QuestionName = "Prem Chand", QuestionDescription = "Prem Chand", QuestionOrder = 1 });
obj.Add(new Question { SubjectId = 1, SubjectName = "Hindi", SubjectDescription = "Hindi", SubjectOrder = 2, QuestionId = 2, QuestionName = "Kabir Das", QuestionDescription = "Kabir Das", QuestionOrder = 2 });
obj.Add(new Question { SubjectId = 1, SubjectName = "Hindi", SubjectDescription = "Hindi", SubjectOrder = 2, QuestionId = 3, QuestionName = "Surdas", QuestionDescription = "Surdas", QuestionOrder = 3 });
obj.Add(new Question { SubjectId = 2, SubjectName = "Math", SubjectDescription = "Math", SubjectOrder = 1, QuestionId = 4, QuestionName = "Arya Bhatt", QuestionDescription = "Arya Bhatt", QuestionOrder = 2 });
obj.Add(new Question { SubjectId = 2, SubjectName = "Math", SubjectDescription = "Math", SubjectOrder = 1, QuestionId = 5, QuestionName = "Varahamihira", QuestionDescription = "Varahamihira ", QuestionOrder = 1 });
obj.Add(new Question { SubjectId = 3, SubjectName = "Physics", SubjectDescription = "Physics", SubjectOrder = 3, QuestionId = 6, QuestionName = "Abdul Kalam", QuestionDescription = "Abdul Kalam", QuestionOrder = 1 });
and output should be like
List obj = new List();
List obj1 = new List();
List obj2 = new List();
List obj3 = new List();
obj1.Add(new QuestionDetail { QuestionId = 1, QuestionName = "Prem Chand", QuestionDescription = "Prem Chand", QuestionOrder = 1 });
obj1.Add(new QuestionDetail { QuestionId = 2, QuestionName = "Kabir Das", QuestionDescription = "Kabir Das", QuestionOrder = 2 });
obj1.Add(new QuestionDetail { QuestionId = 3, QuestionName = "Surdas", QuestionDescription = "Surdas", QuestionOrder = 3 });
obj2.Add(new QuestionDetail { QuestionId = 4, QuestionName = "Arya Bhatt", QuestionDescription = "Arya Bhatt", QuestionOrder = 2 });
obj2.Add(new QuestionDetail { QuestionId = 5, QuestionName = "Varahamihira", QuestionDescription = "Varahamihira ", QuestionOrder = 1 });
obj3.Add(new QuestionDetail { QuestionId = 6, QuestionName = "Abdul Kalam", QuestionDescription = "Abdul Kalam", QuestionOrder = 1 });
obj.Add(new Subject { SubjectId = 1, SubjectName = "Hindi", SubjectDescription = "Hindi", SubjectOrder = 2, QuestionDetails = obj1 });
obj.Add(new Subject { SubjectId = 2, SubjectName = "Math", SubjectDescription = "Math", SubjectOrder = 1, QuestionDetails = obj2});
obj.Add(new Subject { SubjectId = 3, SubjectName = "Physics", SubjectDescription = "Physics", SubjectOrder = 3, QuestionDetails = obj3 });
I am not understand what you are talking about. Can you please provide the code of that.
Tapan Patel10y ago
You can simplify it by making subject class derived from question class and removing duplicate members from question class. Also, please specify your goal , it would help to give you clear idea .