I dont know if here is the right place !

hey everyone ,
I have a question , but I dont know if here is the right place .
the ques. is :
how I can make an add button ?
I have an label .. wat I need is to make an add button .. so when I click on .. he create another label !
sth look like this :

so when I click Add :

and if I clciked again .. will create new label !
I use C# coding !
...