cast the Parent object to Child object in C#

Question

Hi i want to cast the Parent object to Child object in C#

public class Parent
{
    public string FirstName {get; set;}
    public string LastName {get; set;         


        

Answer 1

I do so (this is just an example):

using System.Reflection;

public class DefaultObject
{
    ...
}

public class ExtendedObject : DefaultObject
{
    ....
    public DefaultObject Parent { get; set; }

    public ExtendedObject() {}
    public ExtendedObject(DefaultObject parent)
    {
        Parent = parent;

        foreach (PropertyInfo prop in parent.GetType().GetProperties())
            GetType().GetProperty(prop.Name).SetValue(this, prop.GetValue(parent, null), null);
    }
}

Using:

DefaultObject default = new DefaultObject { /* propery initialization */ };
ExtendedObject extended = new ExtendedObject(default); // now all properties of extended are initialized by values of default properties.
MessageBox.Show(extended.Parent.ToString()); // now you can get reference to parent object