Create a nested property in UserControl Or Multiple child properties in Parent Property

Property is something like attribute.....
a property can be reference type or value type...
reference type = any class like "String","DateTime","SqlConnection"..
what we use "new" keyword to initialize....
and
value type = any type like..."string","int","float","double"........
now if you want a Parent Property and Child Properties......
Use this....
first making the reference type ......

public class RainbowClass
{
    bool red,blue,green;
    public RainbowClass()
    {
       red=false;
       blue=false;
       green=false;
    }
    
    public bool Red
    {
       get
       {
         return red;
       }
       set
       {
         red=value;
       }
    }
    public bool Blue
    {
       get
       {
         return blue;
       }
       set
       {
         blue=value;
       }
    }
    public bool Green
    {
       get
       {
         return green;
       }
       set
       {
         green=value;
       }
    }

}// end of you sub class type....

now in your user control....make a property like this...

RainbowClass rainbowObject;//global variable of your user control

public RainbowClass Rainbow
{
    get
    {
      return rainbowObject;
    }
    set
    {
      rainbowObject=value;
    }
}

may be i misunderstood your question and i may have posted irrelevant answer.... plz dont mind if it is like that