[AccessD] Colander code help

I have a text box txtclassstartdate
I have an active x colander colander 1
 
Code 
            Me.txtclassstartdate.value = me.calander1.value
 
 
I have tried it in the enter event of the text box and on updated event of
calander
 
It is not passing the date to the text box like I want.
 
Help please
 
Thanks Joe