Recursive Function to find the Control in the Parent Controls

Some times we need to find the child control in the parent control's using the loop structure.I have faced this issue many times and got a unique solution to find the child control in the Parent Controls.

The recursive function in order to loop the Parent Control's is given below
private Control FindControlRecursive(Control root, string id)
{
     if (root.ID == id)
    {
         return root;
    }

    foreach (Control c in root.Controls)
    {
          Control t = FindControlRecursive(c, id);
         if (t != null)
        {
             return t;
        }
    }

     return null;
}