Textbox edit

[Guest]

I have a text box in a form I would like the user to enter numbers only in.
On this forum, some code was posted:

Private Sub TextBox1_Key Press
If KeyAscii <48 or Key Ascii >57 Then
KeyAscii=0
End If

This works great EXCEPT it will not allow input of a negative number, which
I need. How can I modify this code to allow a negative number to be input?

Thanks!

 

[Guest]

The ASCII code for "-" is 45, so you can allow that; i.e:
If (KeyAscii < 48 and KeyAscii <>45) or KeyAscii > 57 Then...
The only problem: the user could enter something like 34-56 unless you also
check to see if it is the first character in the textbox, so you may need to
write some code to deal with this possibility.

 

[Ron de Bruin]

Hi Paul

Use this (45 = -)

Private Sub TextBox1_KeyPress(ByVal keyascii As MSForms.ReturnInteger)
Select Case keyascii
Case 45
Case 48 To 57 'Numbers
Case Else 'Discard anything else
keyascii = 0
End Select
End Sub

 

[Bob Phillips]

Check separately, for the first char being a - and there not already being
one, or have a checkbox to signify negative.

--

HTH

RP
(remove nothere from the email address if mailing direct)

 

[Bob Phillips]

Only once, and at start Ron

Private Sub TextBox1_KeyPress(ByVal KeyAscii As MSForms.ReturnInteger)
Static fHyphen As Boolean
Select Case KeyAscii
Case 45
If fHyphen Or Len(TextBox1.Text) > 1 Then
KeyAscii = 0
End If
Case 48 To 57 'Numbers
Case Else 'Discard anything else
KeyAscii = 0
End Select
End Sub


Regards

Bob

 

[Ron de Bruin]

Hi Bob


Or maybe

Case 45: If TextBox1.SelStart <> 0 Then keyascii = 0

 

[Bob Phillips]

even nicer!

A better solution, and highlighting that my fHyphen variable was superfluous
(in such a nice way )

Bob

Hi Bob


Or maybe

Case 45: If TextBox1.SelStart <> 0 Then keyascii = 0