Text between own server controls

 Hello!
 
I created a Server control (TabButton) that inherits from LinkButton.
 The TabButton should set the Text between a span
so I overrode Text
  
1 public override string Text
2 {
3 get
4 {
5 return base.Text;
6 }
7 set
8 {
9 base.Text = "< span>" + value + "< /span>";
10 }
11 } ...