C#

// This is an expensive call; cache the result:
Type myType = this.GetType(); 

// No need to examine sub-classes; if a property isn't
// defined on this class, you won't be able to copy it:
List<PropertyInfo> propertiesToCopy = GetFields(myType);

foreach (PropertyInfo property in resp.GetType().GetProperties())
{
    // IsSubclassOf returns false if the types are the same:
    if (property.PropertyType.IsSubclassOf(myType) || property.PropertyType == myType)
    {
        // Get the instance of ClassB:
        var propertyValue = property.GetValue(resp, null);
        
        // Can't copy properties from a null instance:
        if (propertyValue == null) continue;
        
        foreach (PropertyInfo propertyToCopy in propertiesToCopy)
        {
            var value = propertyToCopy.GetValue(propertyValue, null);
            propertyToCopy.SetValue(this, value, null);
        }
    }
}

foreach(string file in Directory.GetFiles("C:\Temp\FtpUpload"))
{
  FTPClass.UploadFile(file);
}

Mis$Fit wrote:

Is it possible or not in windows Application?

public enum FaceType { Round , ... }
public enum FootType { Hairy , ... }

public class Person
{
   public FaceType Face { get ; private set ; }
   public FootType LeftFoot { get ; private set ; }
   public FootType RightFoot { get ; private set ; }

...
}