need help with custom control

hi all,

i created a custom control i call DateTimeTextBox. i've added a couple of custom properties listed below.

FormatMask - format mask of the date value.
Value - the actual value of the date. bindable.

the Text property is where the formatted value of the date is shown.

the problem i'm having right now is that whenever i add a new record, the Textbox.Text value remains to whatever it had last.

can someone help me with this?

i've attached a zip of the customcontrol as well as a sample project with an access database for your testing.

thanks