Solved

is integer

Posted on 2009-04-09
4
240 Views
Last Modified: 2012-05-06
how do i detect if a number has no floating point  in vb.net

i want to distinguish between  say 6 and 6.8

0
Comment
Question by:jagguy
4 Comments
 
LVL 18

Expert Comment

by:Sethi
ID: 24113474
You can finding a decimal in a number by using IndexOf function like this:
Dim strvalue As String = "6.8"
If strvalue.IndexOf(".") >=0 then
Messagebox.show "It's a decimal value"
end if
0
 
LVL 5

Expert Comment

by:brandonvmoore
ID: 24113478
There may be a function just for doing that, but here's the solution that comes to mind first:

Dim l as long = 5.6
if l - CInt(l) = 0 then msgbox("l is an integer") else msgbox("l is not an integer")

In other words, cast it to an integer and subtract that from the original value to see if there is anything left over.
0
 
LVL 65

Accepted Solution

by:
rockiroads earned 500 total points
ID: 24113737
anther way

if val(mynumber) <> int(mynumber) then
    msgbox "decimal"

val will return number you pass in eg. val(5.2) returns 5.2
int returns whole part, not decimal eg int(5.2) returns 5
0
 
LVL 48

Expert Comment

by:jpaulino
ID: 24114120
Another way:
        Dim number As Decimal = 6.8
 

        If number - Decimal.Truncate(number) <> 0 Then

            Stop ' Fractional number 

        End If

Open in new window

0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Enable copy and pasting even when textbox is disabled 2 26
Get String split 5 48
Help with Syntax 9 26
Get size of each directory on each mapped drive 5 21
If you're writing a .NET application to connect to an Access .mdb database and use pre-existing queries that require parameters, you've come to the right place! Let's say the pre-existing query(qryCust) in Access takes a Date as a parameter and l…
1.0 - Introduction Converting Visual Basic 6.0 (VB6) to Visual Basic 2008+ (VB.NET). If ever there was a subject full of murkiness and bad decisions, it is this one!   The first problem seems to be that people considering this task of converting…
With the power of JIRA, there's an unlimited number of ways you can customize it, use it and benefit from it. With that in mind, there's bound to be things that I wasn't able to cover in this course. With this summary we'll look at some places to go…
As a trusted technology advisor to your customers you are likely getting the daily question of, ‘should I put this in the cloud?’ As customer demands for cloud services increases, companies will see a shift from traditional buying patterns to new…

910 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

25 Experts available now in Live!

Get 1:1 Help Now