How to insert NULL into database if form field is empty

Question

I have a form and stored procedure that inserts the data from the form. It works fine except that if a field isn\'t filled in it doesn\'t insert a NULL into SQL

Answer 1

In my case using 'Nothing' solves the problem. Use it like this

If String.IsNullOrEmpty(pd_first_name.Text) = True Then
   frmFirstName = Nothing
Else
   frmFirstName = pd_first_name.Text
End If