Force user to use date format dd/mm/yyyy on User Form

I have a user form containing various fields and would like code that forces the user to enter a date in the date field on the user form called called "TxtDate1" in the format dd/mm/yyyy. If not in this format Message box must appear advising user date format incorrect and they must enter date as dd/mm/yyyy

Offer the user a combobox (style dropdownlist) with all valid dates to choose from

Thanks for the info. I think the best option would be to use datepicker add-on linked to the combobox. It would be appreciated of you could assist me in writing code to activate the datepicker or a built in calendar when selecting the date field in the combo box ("TxtDate1")

Look at this link

VBA Tips: A Pop-up Calendar for Excel


or maybe this one.

Open the Calendar Automatically

To fill a combobox:

VBA for smarties How to fill a Combobox / Listbox

Hi Guys

Thanks for the pointers in the right direction