Hi there programmers.
How can you tell if the input value in a textbox is an Integer or String is there any code to know this?
7  1155 
Hi there programmers.
How can you tell if the input value in a textbox is an Integer or String is there any code to know this?
- If isnumeric(textbox.text) = True then
-
Msgbox("I am a number")
-
Else
-
msgbox("I'M not anumber ,im mostlikely a string")
-
End if
-
This help?
- If isnumeric(textbox.text) = True then
-
Msgbox("I am a number")
-
Else
-
msgbox("I'M not anumber ,im mostlikely a string")
-
End if
-
This help?
Thank you! Thank you! Thank You! very much. You saved my day.
Better Than Yesterday ^^
I'd just like to point out that by definition, the value in a textbox is always a string. What you're testing is whether it's possible for VB to convert that string to a number. (Note, IsNumeric() function won't care whether it's an integer - it could be too large for instance).
Oh, and a quick tip, daniel. If you're testing a logical value, there's no point in comparing it to True. It already is True or False. So in this example, the code
If IsNumeric(textb ox.Text) = True Then
works exactly the same as
If IsNumeric(textb ox.Text) Then.
Except that depending on how smart the compiler is, the shorter version might execute ever so slightyl faster.
Hi there programmers.
How can you tell if the input value in a textbox is an Integer or String is there any code to know this?
TextBox's Text Property must be String, if u want to check Integer, there is no fucntion for that for ur need u must take some other way.
TextBox's Text Property must be String, if u want to check Integer, there is no fucntion for that for ur need u must take some other way.
daniel aristidou already provided a solution which "werks" :) though it may have problems with large numbers or decimals.
Oh, and a quick tip, daniel. If you're testing a logical value, there's no point in comparing it to True. It already is True or False. So in this example, the code
If IsNumeric(textb ox.Text) = True Then
works exactly the same as
If IsNumeric(textb ox.Text) Then.
Except that depending on how smart the compiler is, the shorter version might execute ever so slightyl faster.
I didn't know this huh? I learned something new for this day. haha : )
Rey Sean
Hey...killer..y ou have a valid point... i already knew that...i just always put = True in when trying to explain or if there is more than one statement...so as not to get confused.....
Good point though....
Sign in to post your reply or Sign up for a free account.
Similar topics | |
by: Colin J. Williams |
last post by:
Python advertises some basic service:
C:\Python24>python
Python 2.4.1 (#65, Mar 30 2005, 09:13:57) on
win32
Type "help", "copyright", "credits" or "license" for more information.
>>>
With numarray, help gives unhelpful responses:
|
by: Shaggyh |
last post by:
hi im needing help with a program im writing to do subnetting
i was on before about it and i got some help.
the code below wont work for me and i cant think of why not.
i was wondering if anyone out there can help, even come up with a better way
of doing this..
i have 2 files..
here is my first file..
// a library assembly i.e. dll
|
by: SStory |
last post by:
Hi all,
I really needed to get the icons associated with each file that I want to
show in a listview.
I used the follow modified code sniplets found on the internet.
I have left in commented code for anyone else who may be looking to do the
same.
|
by: Steve |
last post by:
I'm hoping someone can help me out. I'm a newbie to vb.net still.
I'm trying to convert the code below from VB6 to VB.NET. I'm not sure
of the best way to go. This is basically a simple application to do
scoring for a competition. I'm using an Access database and all of
this code happens "behind the scenes" when all of the scores have been
entered on another screen (that piece is done). If someone could help
me, I'd really be...
|
by: John Regan |
last post by:
Hello All
I am trying to find the owner of a file or folder on our network (Windows
2000 Server) using VB.Net and/or API. so I can search for Folders that don't
follow our company's specified folder structure and naming conventions and
then send a Net send message to those users telling them to rectify.
The information I want to get is when you select the file/folder and then:
Properties -> Security Tab -> Advanced Button -> Owner Tab ->...
| | |
by: ItsMe |
last post by:
Hi Guyz,
I'm unable to understand this (AddressOf) error???
In VB6 I have two functions:
----------------------------
Public Function ImageFirstImageCallback(ByVal hWnd As Integer, ByVal iMsg As
Integer, ByVal wParam As Integer, ByVal LParam As Integer) As Integer
'Code here
|
by: Michael D. Reed |
last post by:
I am using the help class to display a simple help file. I generated the
help file using Word and saving it as a single page Web page (.mht
extension). I show the help file with the following statement.
Help.ShowHelp(Parent:=Me, url:=Me.HELP_URL_PRE & Me.myWorker.HelpFile)
How do I get it to go away when the program exits? Now when I quit the
program that I called it form the help file is sill displayed. Is there a
way to get a handle...
|
by: carly |
last post by:
Hi,
im new to java and i really need help with my assigment. I need a simple methode that will:
1- allow a member of a Internet cafe to log in to the workstation
2- log out of the workstation
3- a methode to add a new member to the cafe.
4- a methode to renew the membership
|
by: yxq |
last post by:
Hello,
I want to get the string resource from DLL file, the code work well for
Vista x86, but it will not work on Vista x64, why? can anyone help to view
the code below? thank you very much.
//////////////////////////////////////////////////////////////////////////////////
Public Class GetResourceStringFromFile
Private Declare Function LoadLibrary Lib "kernel32" Alias
|
by: Javad |
last post by:
Hello
I know that I should get the information of windows internet connections by
using "rasapi32.dll" library, and I also have some sample codes, but I can't
make them work. My exact need is to get the "UserName" of a connection. How
is it possible?
plz hlp
thnk u
|
by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
| | |
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 effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
|
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, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
|
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 protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
|
by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
|
by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
|
by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
| | |
by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
|
by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
| |
