Check If A Number Is Evenly Divisible By Another?

Jan 20, 2012

I was wondering what the fastest way is to check for divisibility in VB.NET.I tried the following two functions, but I feel as if there are more efficient techniques.

Function isDivisible(x As Integer, d As Integer) As Boolean
Return Math.floor(x / d) = x / d
End Function

Another one I came up with:

Function isDivisible(x As Integer, d As Integer) As Boolean
Dim v = x / d
Dim w As Integer = v
Return v = w
End Function

ADVERTISEMENT

Fast Way To Check If A Number Is Evenly Divisible By Another?

Feb 13, 2011

I was wondering what the fastest way is to check for divisibility in VB.NET.I tried the following two functions, but I feel as if there are more efficient techniques.Function isDivisible(x As Integer, d As Integer) As Boolean Return Math.floor(x / d) = x / d End Function

Another one I came up with:

[code]...

Is this a more practical way?

View 3 Replies View Related

Finding The Smallest Number Evenly Divisible By 1-20

May 14, 2009

i just started to learn mod and i was having trouble with this. heres my code:

[Code]...

View 9 Replies View Related

Determining If Numbers Are Evenly Divisible

May 30, 2012

In my order program, I need to determine if the quantity ordered is full boxes.For example - all of our parts/products have different box quantities, and when a customer orders a certain quantity, I want it to do nothing when I type in the quantity IF the order quantity is even boxes, If it is not even boxes, I want a pop up form with three radio buttons to come up. The three radio buttons will have the next higher even box quantity, the next lower box quantity, and to keep the current quantity and apply a broken box charge. I have this pop-up form done except for determining if the order quantity is an even number of boxes, and then determining the next higher and next lower.

Just to clarify - let's say a customer orders a part that has 60 pieces per box. If he orders 180 pieces, nothing happens and you can continue to put the order on. If he orders 200 pieces, a pop-up form with 3 selections - "keep current quantity and apply broken box charge", or "Change Quantity to 240", or "Change Quantity to 180" comes up.

View 5 Replies View Related

Check If X Is Divisible By 5?

Mar 30, 2009

I'm trying to check if when x is divisible by 5 then it makes y true.

basically: if x / 5 = "positive integer" then y = true.....

how do you check if a number is divisible by 5?

View 7 Replies View Related

Get The Nearest Number Divisible By 10?

Jul 6, 2009

For example, how would I get the # "220" from the number "229". Or the number "300" from "309"? The only way I've found to do this is using string stuff, but I'm afraid of the overhead for strings?

View 15 Replies View Related

Converting Some Php Code That Tries To Get A String To A Length That Is Divisible By A Certain Number?

Dec 10, 2009

I'm converting some php code that tries to get a string to a length that is divisible by a certain number, say 10. To do so it appends "�" to the string to make up for the difference. In other words, it does something like:

dim difference as integer = 10 - (str.Length Mod 10)
for i as integer = 1 to difference
str += "�"
next

But the problem for me is that "�", which is the ascii code for the null character, is two strings and I don't believe that when VB loops over resultant string it will view that as one character. what could I append the string with to retain the expected behavior?

View 1 Replies View Related

Filter A Dataset Using A Number Different Inputs, Selected By A Number Of Check Boxes?

Mar 3, 2010

I am trying to filter a dataset using a number different inputs, selected by a number of check boxes. I have all the text base rowfilters working, but I can not make the date filter work unless I hard code the datetime into the code. The database is MS Access and I am using VB2008 to show the data. I would like to be able to use a DateTimePicker to set the filter date (without the time part) Also I would need to remove the time section of the datEnterDate. I cannot change the structure of the database fields. Also the datEnterDate is MM/dd/yyyy, because I'm in England I would like to use the format of dd/MM/yyyy if possible

[Code]...

View 10 Replies View Related

ATM System - Check Card Number Matches Up To The Users PIN Number

Mar 13, 2009

I am trying to make a basic ATM system, iv got all the interface done and I have made the link to my SQL database etc. the part i'm stuck on is how I can run a check to see if a bank card number matches up to the users PIN number. To simulate the user putting a card into the machine I've used a combo box, and that lists all the cards, that haven't been flagged as confiscated (there's a column in my ATMCards table that I can set to true or false) then after the user has selected a relevant card there's another text box where they can enter in their PIN number.

Now what I want to do is, if they chose the card number 1234567890123456 in the combo box and they enter in the PIN 1234 into the text box, then, after clicking the check PIN Button if the pin is correct they need to be taken to another from where they can check their balance etc., and if its wrong they got three attempts after which point i want to flag that card as confiscated.

View 4 Replies View Related

VS 2008 Code To Check If Label1 Number Is > Then Label2 Number?

Jul 10, 2009

I got 2 LABELS and ONE BUTTON... when i press the button, it fills both labels with a random number from 1 - 6.ild like to do it like this... you press the button then a little prograss bar starts running for 3 or 4 seconds... and THEN after it reached the bars max i want it to show the numbers in the Labels...

the second thing is...i want to make 2 checkboxes next to the labels... if you mark the first checkbox, next to the first label... and the outcome is that the number of the first label is BIGGER then the other one.. you should get some kind of a msgbox.. i know how to make a msg box... but i dont know the code for vb to check if label1 is > or < than label2....

View 10 Replies View Related

Check If A Number In A TextBox Is An Even Or Uneven Number?

Mar 24, 2010

Is there a way to check if a number in a TextBox is an even or uneven number?

View 8 Replies View Related

Drawing Dotted Path Lines With Evenly Spaced Dots?

Apr 22, 2012

I have a problem drawing dotted path lines, with evenly spaced dots: I want to be able to draw evenly spaced dots along a path line using points in an array, My issue is not with drawing the path line, with dotted lines, this is easy, but with the spacing of the dots at the start and end of the path line.

In the example I have created, I create a square with 4 points and draw a dotted path.The path starts at the top left corner and finishes back at the top left corner, the dots are evenly placed along the path, except the final dots at the end of the path. (Sometimes the dots are even and other times they are not even).The shapes I want to draw can be any size and any shape, but I have used a square in this example to show the problem I have.I have also attached two pictures showing the dotted path line, 1 with even spaced dots at the start / End and another showing the problem I want to resolve, with not evenly spaced dots at the start / end.The only difference between the two is the point values.

View 1 Replies View Related

Count And Add All Numbers That Are Divisible By 2,3?

Apr 13, 2011

i need to count and add all numbers that are divisible by 2,3 and 5 inclusively ( the answer is 30, 60, 90 sum is 180). I tried running a loop and a true false isnumber. what am i doing wrong? all i have is two textboxes and a button Public Class Form1

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

[Code]...

View 6 Replies View Related

VB Loop Minimum Sum And Divisible?

Nov 19, 2009

I have run into a snag in my loop program. I was able to figure out the maxium sum and average of the sum. But am not able to figure out how to:

1) List the minimum value

2) List the sum of the numers divisible by 5.

These are the numbers.text displayed:

5
15
6

[Code].....

View 1 Replies View Related

Check If Input To Group Number And Number Of Units Are Correct Input By Making Error Handling Exceptions

Sep 23, 2010

Part of my assignment is to check if input to Group Number and Number of Units are correct input by making error handling exceptions...

I have to check the following:
a) group number is neither 501 nor 062
b) number of units are NOT numbers
c) number of units is NOT a positive number

So my first question is, am I checking correctly? 2nd question is, How do I make sure my Exceptions will pertain to their correct respective things (a, b, and c.. above)?

[Code]...

View 6 Replies View Related

Asy Way To Check Whether A Number Is A Prime Number?

Oct 8, 2008

Is there an easy way to check whether a number is a prime number? I've tried doing this:[code] url...

View 3 Replies View Related

Way To Check Whether A Number Is A Prime Number?

Oct 12, 2010

Is there an easy way to check whether a number is a prime number? I've tried doing this:

Code:
Public Function IsPrime(ByVal Input As Integer)
Dim NewInput As Integer

[code].....

View 3 Replies View Related

Check The First Number In A Set Of Number?

Jun 4, 2011

I was trying to get this work, but couldn't find a way to work this out. I'm new to vb.net. In a text box, the user enters a number for example a 9 digit number. I want the user enter to enter a 9 digit number that is starting from 8. if the very first number of that set is not starting with 8 then give a error msg to the user to enter a number starting from 8.

View 1 Replies View Related

Check For A Number In A String?

Jun 21, 2010

I'm reading data in from a comma-separated text file and storing the data in an array for later use. Some of the values are to remain as strings, and I need to convert some to integers, for which I was trying to use, for example, integer.parse(ar(0)).

My problem is that the string values are randomly distributed through the text file, so I need to be able to test whether the string can be converted at all before doing the conversion.

View 3 Replies View Related

Check If A .NET Decimal Value Is A Whole Number?

Aug 20, 2010

I have class representing a unit of measure with a Decimal as the numeric. Just to simplify things for this example, let's say I'm representing centimeters. I'd like to implement a ToString() method for this class. The thing is, if the numeric value is a whole number I'd like to just display the decimal as an integer. Otherwise, I'd like to keep it as a decimal. So, for example, 10.5D centimeters would display as "10.5cm", but 7.0D centimeters should display as "7cm". I'd like this to be fast and simple to read. I have a working solution, but it seems like there should be a better way.Here's a contrived example showing my first crack at it:

Public Property Units As String = "cm"
Public Property NumericValue As Decimal = 10.5D
Public Overrides Function ToString()

[code].....

View 3 Replies View Related

Check If A String Is A Number?

Feb 5, 2006

How do you check to see if a string is a numberic value?

View 7 Replies View Related

Check If An Customer Number Is Already In Use?

Jun 4, 2011

im using a datagridview, and it is connected to ms access. every time i have an input same in the column where primary key is I already got an error. can you guys how to show a messagebox if the Customer Contact number is already in use? here is my code.

[Code]...

View 1 Replies View Related

How To Check If A Number Is A Muliple Of

Apr 30, 2010

I can't seem to figure out how to make a function that check if x is a multiple of y. For example, 64 is a multiple of 8.Here's what I have, it's simple but I'm stuck:

Function IsMultiple(ByVal Number As Integer, ByVal Multiple As Integer) As Boolean
If Number / Multiple = 0 Then
IsMultiple = True
End If
End Function

Line2, if the number is a multiple it would return a number without decimal, but I dunno how to check if it is or not.

View 3 Replies View Related

Check If An Infinity (or NaN) Number Does Exists?

May 22, 2009

I am using vb express edition 2008. I need to check if an infinity (or NaN) number does exists but I don't know what my mistake is.

Dim Slop1 As Double
Slop1 = (20 - 10) / 0
If Double.IsNaN(Slop1) Then
MsgBox("Check the Coordinates")
End If

whats the diference between the 'IsNaN' and 'IsInfinity' is?

View 3 Replies View Related

Check A Value And Make Sure That It Is Not A Negative Number?

May 25, 2009

I need to check a value and make sure that it is not a negative number using a try catch statement I keep getting an error saying that I have to use a method.

Try
TotalCurrentBalance < 0
Catch ex As Exception
End Try

I wouldn't put a if statement would I? I am thinking that would defeat the purpose.

View 2 Replies View Related

Check For Number Of Decimals In Textbox

Oct 4, 2009

I'm trying to check for the number of decimals in a textbox, but I'm not very successful so far:[code]How can I correct my code to make it work? Or any other/better solutions?

View 2 Replies View Related

Check If A Quotient Is A Whole Number Integer?

Oct 31, 2010

I've just begun using VB2008 Express. As practice, I'm trying to create a simple program that allows users to practice their basic arithmetic skills. I've just run into one hiccup.

I have a procedure that generates random numbers for the program to spit out as text that the user will then do arithmetic on. I'm trying to create a loop that checks, in the case that a radio button selectingdivision practice, that the potential quotient [code]...

View 3 Replies View Related

Check If Number Is Between Two Numbers Inclusive?

Nov 5, 2010

i want a user to entera number and then check if the number entered fall between the minmum number specified and the and maximum number specified inclusive.i have this code but itis not working for me as i want.that is if the entered number is not within the min. and max. inclusive then it should promt the user.

if number>=minnuber and number <=maxinumber then
exit sub
else
messagebod.show("number is out of range.number must be between the minimum and the maximum number")
end if

View 9 Replies View Related

Check If The Division Of Two Integers Is A Whole Number?

Feb 17, 2012

How do you check if the division of two integers is a whole number, just answer with code, no links?

View 6 Replies View Related

Check If The Value Entered In TextBox Is An EVEN Number?

Oct 5, 2011

I want to check if the value in the text box is EVEN NUMBER.else throw an error mssg.

View 3 Replies View Related

Check Number Of Items In Listbox?

Jan 17, 2009

I have a listbox, textbox, and a button. every time I push the button, an item from the listbox is put into the textbox. when the button is pushed again, it grabs the next item in order and puts it into the textbox. so on and so on until it gets to the last item. once I get to the last item it keeps repeating the last item over and over again. SO what I was wondering is how do I get a messagebox or some sort of checker to tell me when it has moved the last item from my listbox to the textbox?? PS textbox2.text=0 and every time the button is pushed another number is added to the value of textbox2.text. so basically if I could figure out how to grab the value of lines at any given time in listbox I could call a msgbox up!! here is the code I am currently using[code]...

View 3 Replies View Related

Check The Lowest Unused Number?

Jul 6, 2011

I have a table named tbluser with fields code and name. I want to check the lowest unused number in code. For example table below:

code name
60688 jane
60689 dina

[Code]....

i have also one textboxt what is the first, second and third number to search
ex.

if
text1.text=6

therefore first number is 6 second and third is 06 and the result should be
60601 since in the code the lowest unused code is 60601.

View 23 Replies View Related

Check Whether An Inputted Number Is Prime?

Sep 9, 2009

I'm working on a console application in VB .net that checks a number that the user has inputted, and tells you whether the number is prime.

The number that has to be inputted has to be between 1 and 100. I have all the code so far and at the moment it can check whether the number is or isn't within the boundries.

View 4 Replies View Related

How To Check If Textbox Sum Is An Exact Number

May 26, 2012

I was trying to make a button to check if textbox numbers sum is an exact number(Ex: 70) [code]

View 8 Replies View Related

VS 2010 Check If A Number Contains Decimals?

May 29, 2010

VS 2010 check if a number contains decimals?

View 6 Replies View Related

Way To Check Which Row Of The Value(any Of The Column) Is Empty And Get The Row Number?

Oct 3, 2010

Hi, Is there any way to check which row of the value(any of the Column) is empty and get the row number??

View 4 Replies View Related

Counts The Number Of Check Boxes In A Form?

Aug 20, 2009

I need a code that counts the number of check boxes in a form this is my cod Public Class frmCount Dim counter As integer = 0 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

[Code]...

View 1 Replies View Related

How To Check The Inserted Test In A Text Box Is Number?

Oct 4, 2011

How to check the inserted test in a textbox is number?

In vb windows phone application.

View 13 Replies View Related

Pre-check A String For A Certain Number Of Instances Of A Substring?

Oct 19, 2010

Is there something I am missing to pre-check a string for a certain number of instances of a substring? Example.

"I am a test string, I will be searching this string later. I will be checking for every instance of the letter "i" and return the number of instances of that letter."

If I wanted to return an int for how many times i occurs in that string.

View 6 Replies View Related

VS 2010 Check Whether A Certain Number Is A Member Of The Arra

Jan 18, 2012

I need to check whether a certain number is a member of the array. Is this a good way?[code]

View 1 Replies View Related

Check For Character Number And Special Characters In A String?

Jan 21, 2011

I want to user to enter only numbers and characters in textbox i.e no special charaters.I don't want to use key press event of textbox.As i need same validation in gridview.

So i want to validate whole string.

View 2 Replies View Related

Check The Number Of Records Inserted Into A Particular Table(Users)?

Feb 6, 2012

I have a vb application sitting on sql 2005 database i want a scenario where the application can check the number of records inserted into a particular table(Users) , if the number of records inserted into that table after 1wk since the last insert is less than 100 records it should pop up a warning alert with the total number of records

View 3 Replies View Related

Forms :: Check Whats The Highest Rev Number In A Folder

Dec 3, 2009

i'm trying to check whats the highest rev number in a folder (file names are 123456_rev01.*, 123456_rev02.*).

here is my code

For j = 1 To File.Exists("c: est123456" & "*" & j & ".*") = False
MsgBox("looking at rev" & j)
j = j + 1

[Code].....

View 4 Replies View Related

Select Case To Check Range Of A Decimal Number?

Jun 17, 2009

i need to check whether a demical is 0 through 49.99 or 50 through 99.99 or 100 through 199.99 or greater than 200. i am trying to do this with select case, but i am not sure of the syntax.

View 7 Replies View Related

VS 2010 - Do Until Loop To Check Entered Number In Textbox

Feb 2, 2011

I am writing a Do Until Loop to check if the number entered in a textbox is between 1 and 12 in Visual Basic 2010.

View 4 Replies View Related

ADVERTISEMENT