473,399 Members | 2,478 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,399 software developers and data experts.

Validation of decimal numbers in textboxes

Hi,
Newbie.. Would like to know how should I validate a decimal number in a textbox?
tried IsNumeric but in vain does not recognise the decimal parts of it.

Regards,
Uday Padhye.
9819025325
(022)25476592.
Apr 10 '07 #1
1 2704
Killer42
8,435 Expert 8TB
Newbie.. Would like to know how should I validate a decimal number in a textbox?
tried IsNumeric but in vain does not recognise the decimal parts of it.
Can you show us the code? I have used IsNumeric (in VB6) and it handles decimals just fine.

I created a new project with a single form, added a textbox and a command button, and inserted this
Expand|Select|Wrap|Line Numbers
  1. Private Sub Command1_Click()
  2.   Debug.Print IsNumeric(Text1.Text)
  3. End Sub
  4.  
  5. A few sample results...
  6. Input   Output
  7. Text1   False
  8. 123     True
  9. 123.45  True
Um... if the problem persists, try checking your Regional settings in Windows. Perhaps the decimal is different to what you (or VB) expect.
Apr 10 '07 #2

Sign in to post your reply or Sign up for a free account.

Similar topics

21
by: Batista, Facundo | last post by:
Here I send it. Suggestions and all kinds of recomendations are more than welcomed. If it all goes ok, it'll be a PEP when I finish writing/modifying the code. Thank you. .. Facundo
17
by: John Bentley | last post by:
John Bentley: INTRO The phrase "decimal number" within a programming context is ambiguous. It could refer to the decimal datatype or the related but separate concept of a generic decimal number....
8
by: SAN CAZIANO | last post by:
i have to do in the onkeypress or in onchange the float (real) field validation I try something: function ValidaCampo(nomeCampo,TotInteri,TotDecimali) {...
14
by: milkyway | last post by:
Hello, Is there a good validation package out there that can be used with javascript? I have tried the one here: http://www.peterbailey.net/fValidate/ but had some problems implementing it...
8
by: Tony Williams | last post by:
I have a form where the user inputs a series of figures into a number of controls. After they've input the total (they don't want the program to create the total) there is a check to make sure the...
2
by: Steve Summit | last post by:
-----BEGIN PGP SIGNED MESSAGE----- It's often explained that the reason for some of the imprecision in C's definition is so that C can be implemented on different kinds of machines -- say, those...
1
by: Kum | last post by:
Hi, I need help in asp.net dynamic textbox controls validation. I am creating textbox controls dynamically on a asp.net webpage. Now after creating the textboxes on the page I want to validate...
27
by: code_wrong | last post by:
Visual Basic (not dot net) what is the best way to check the User has entered an integer into an InputBox? isNumeric() checks for a numeric value .. but does not notify of numbers with decimal...
4
by: jehugaleahsa | last post by:
Hello: Is it me, or is handling the Validating event for every control on a form extremely annoying? It is especially annoying when my business logic repeats most of the validation. Some things...
0
by: Charles Arthur | last post by:
How do i turn on java script on a villaon, callus and itel keypad mobile phone
1
by: nemocccc | last post by:
hello, everyone, I want to develop a software for my android phone for daily needs, any suggestions?
1
by: Sonnysonu | last post by:
This is the data of csv file 1 2 3 1 2 3 1 2 3 1 2 3 2 3 2 3 3 the lengths should be different i have to store the data by column-wise with in the specific length. suppose the i have to...
0
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can...
0
Oralloy
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers,...
0
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven...
0
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows...
0
tracyyun
by: tracyyun | last post by:
Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each...
0
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.