How to dynamically create a TextBox

public void CreateTextBoxes(StackPanel target, int number)
{
   if (target.Children.Count < number)
   {
      for (int i=target.Children.Count; i< number; i++)
      {
          TextBox tx = new TextBox;
          target.Children.Add(tx);
      } 
   }
   else
   {
          while (target.Children.Count > number)
          {
              target.Children.RemoveAt(target.Children.Count - 1);
          }
   }
}