Look at the Private Sub UserForm_Initialize() event in the Help.
idem for the List Property.
also the ListRows Property.
and the Enabled Property
and the ListIndex Property
and the Text Property
Burcu,
A very nice tutorial that includes a module on Userforms is available
from the MVP website at: http://www.mvps.org/project/links.htm
At the bottom of the page you will find a link to "Project 98 Visual
Basic Training Environment". Although it says Project 98, the
information therein is equally applicable to all later versions of
Project. Training Module 4 covers UserForms.