I got two form.
form 1 i ask the user a number of guest
form 2 i ask each guest their name, their age
i decide to make a loop throught form2 array base on the number of guest but then i got this error. NullReferenceException was unhandled
how to solve this...i underline under my code
Private Sub btnBook_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnBook.Click iTest = CInt(txtChildren.Text) Do Until (iCounter = iTest) And (bIsNextClicked = True) PassengersDetails(iCounter).ShowDialog() Loop End Sub