Question about fields

[Rogueuk]

I am in the middle of designing a form.
Part of it requires a user to enter a number into one field.
What I need is for that number to be computed for another field but having 3 subtracted from the total.
I have tried everything I can think of....now I need help!!!

 

[Guest_imported]

Create a button, with the following sourcecode
This code does not substract however, but provides you with a number as a integer. Users cannot enter a "non"numeric value (code requires a field called 'number').
Hope this will help. Please read the documentation of Notes, it's pretty good.

Sub Click(Source As Button)
Dim workspace As New NotesUIWorkspace
Dim session As New NotesSession
Dim uidoc As NotesUIDocument
Dim doc As NotesDocument
Dim num As Variant

Set uidoc = workspace.CurrentDocument
Set doc = uidoc.document

num = Inputbox("number&quot

While Not Isnumeric(num)
Messagebox "No Number!" 'A number was not entered
num = Inputbox("A number please.&quot
Wend 'End of WHILE loop

doc.number=num
Call uidoc.refresh
End Sub