How To Detect A Two Digit Number Within A String
Feb 10, 2009I would like to know how to detect a two digit number within a string.
For example: how can I pull the number 42 from that string?
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5-digit Credit Card Number With Fifth Digit As Check Digit
Apr 6, 2010I just finished this application where you enter a five-digit credit card number, with the fifth digit being the check digit. everything seems to work except, I can't seem to get it to determine that any number is "valid". Every 5-digit combination that I enter returns "The credit card number is not valid". Im using visual basic 2008 express
[Code]....
Make A Digit Number In A Field Of A Database Add One Digit Number To It Self?
Aug 12, 2011i want a button to perform a function of checking the last digit number in a field of a table in and add a digit to it and display it in a textbox.
View 1 RepliesWrite A Program That Validates An Inputted Ten Digit ISBN Number Using The Check-digit?
Sep 16, 2011I'm supposed to write a program that validates an inputted ten digit ISBN number using the check-digit at the end to ensure that the sum is a multiple of eleven. Before calculating this and detecting if the entered number is indeed a valid ISBN, we're required to check the first nine digits and see if they are indeed integers. After this the tenth digit is checked to see if it is "X" (for ten) or 0-9.
With the code I've written it keeps returning false for whether or not the ISBN is valid, even with valid numbers. I feel like its something to do with the hyphens; have I misused the replace function?I'm a little lost on how to make my code work, but I'm fairly certain my logic is okay so far.
[Code]...
Asp.net - Generate And 7-digit Random Number/special Character String ?
Dec 1, 2010How can I generate a 7-digit random number and special character string in a textbox on a button click event, in VB.Net?
View 2 RepliesSQL : Get Minimum Value From List Of 3, 4, 5 Digit Numbers But Want Minimum 4 Digit Number?
May 4, 2012I'm using Visual Studio and table adapters using an Access DB as the backend. I need the minimum 4 digit value. I want to get next available 4 or 5 digit number. And this will change depending upon the users request. Currently I use a table adabpter query. But how would I write a query. I suppose I could do a long iterative loop through all values until I see a 4 digit.But I'm trying to think of something more efficient.
Function GetNextAvailableNumber(NumofDigits) as Long
'SQL Code Here ----
'Query Number Table
[code]....
VS 2010 Detect A Number In String?
Jan 10, 2012Not a professional at vb.net but I want to know how to check if a url ends with a number
I know this part:
If WebBrowser1.Url.ToString.Endswith("detect number") Then 'my coding here End If The problem is that I don't know what to put in 'Endswith()'
VB - Georgetown Credit Card - When The Last 5th Digit Match The Sum Number At The Last Number - Isnt Working
Dec 10, 2010I got most part correctly but the only part isnt working right is when the last 5th digit match the sum number at the last number.
Private Sub btnVerify_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnVerify.Click
Dim strCardNum As String
Dim strSumNum As String
[CODE]...
VAL Function Returning Negative Decimal Number For 8 Digit Hex Number?
Jun 23, 2009I am calling the function below from an Excel spreadsheet and the conversion from hex to decimal using the VAL function in the "manufacturer" variable below is coming back with a negative value. The VBA edition is 6.5.
Public Function decMEID(ByVal sKey As String) As String
Dim manufacturer As String
Dim serial As String
[code].....
Generate Serial Number (last Six Digit Number)
May 17, 2010I want to generate a serial number in this format: INDDMMYY000001, INDDMMYY000002, INDDMMYY000003, ... I can generate INDDMMYY using following code: lblNoSiri.Text = "IN" + Date.Now.ToString("ddMMyy") However, I don't know how to generate the last six digit number. I only can generate number without zero in front of it. How to create the number with fix number of digit?
View 4 RepliesHow To Encrypt 4 Digit Number
Feb 6, 2012How I could retrieve the single digits of a 4 digit number to manipulate them in my own way to encrypt the 4 digit number to my liking. Here's what I have to do; take a 4 digit number, add 7 to each digittaking the result and dividing by 10 leaving only the remainder. Then swap the first digit with the third, and swap the second with the fourth digit.
View 9 RepliesHow To Get Next 4 Digit Number From Table
May 4, 2012I found a good method of getting the next 4 digit number. How to find next free unique 4-digit number..But in my case I want to get next available 4 or 5 digit number.And this will change depending upon the users request. Theses number are not a key ID columns, but they are essential to the tagging structure for the business purpose. Currently I use a table adabpter query. But how would I write a query. I suppose I could do a long iterative loop through all values until I see a 4 digit.[code]Numbers is the List of All available number from 0 to 99999, basically what's available to use. LineList is my final master table where I keep the long and all the relevant other business information.
View 2 RepliesSplit Three Digit Number?
Feb 17, 2011I'd like to know how to get VB to display the individual digits of a three digit number when I click a button. Sorry if this seems simple, or if it's in the wrong place.
View 8 RepliesC# - Round Any N-digit Number To (n-1) Zero-digits
Jan 5, 2011I need to round like this:
12 -> 10
152 -> 200
1538 -> 2000
25000 -> 30000
etc.
Twisting my head, but can't see how to make this. Must work for any n number of digits. Anyone got an elegant method for it?
Convert A 3 Digit Number To Text?
Nov 1, 2009I have to do one project like : 1.Complete the code to convert a 3 digit number to Text (Number > 19) 2.Adding suitable conditional statements modify to code to support the whole range of 3 digit numbers.
View 3 RepliesFormat - Always Return 2 Digit Number?
Jun 1, 2012In the function it returns the no in one digit .I want it to always return 2 digit number.Like if it is 0, it should return 00.
Public Function GetHexColor(colorObj As System.Drawing.Color) As String
Return Hex(colorObj.R) & Hex(colorObj.G) & Hex(colorObj.B)
End Function
VS 2008 How To Store 40 Digit Number
Jul 28, 2011Can i add, subtract, times, divide 40 digit number to 40 digit number ... example:
dim a as double = 1111111111111111111111111111111111111
dim b as double = 1111111111111111111111111111111111111
dim c as double
[code]....
6 Digit Number Generator By Clicking Button
Nov 11, 2010I want to make a program that generates a 6 digit number for me by clicking a button. I can make a simple counter, but the nunmber I generate can only be used one. So , I need to store that number somehwere (access, xls, whatever) and then start the next count from the last number.
View 12 RepliesEnter A Two-digit Number It Doesn't Wait?
Jan 27, 2012I want to be able to enter (type in) data into a combobox as well as picking from the list. In earlier VB there was AfterUpdate event so that I could enter in the data I wanted. Now I have tried Keypress, Enter, and others and they all want just one character or number. If I try to enter a two-digit number it doesn't wait.
View 16 RepliesLimiting A Textbox To Enter 10 Digit Number Only?
Oct 15, 2011how can i limit a user to enter 10 digit no like telephone no in textbox without using regular expressions?
View 12 RepliesMultiply A User Set Digit By A Text Box Number?
Mar 14, 2009Ok, now I have another problem that I cant seem to figure out I now have the "Labour charge section" just incase the service requires one. which in alot of cases it does. So, I have a test box called text box 1, which I want to be able to insert "hours worked" which is a "digit" and then Have a fixed value, of five. Which the user can later change. The number from the box, and the user specified Hourly charge, must then be multiplied to create the total labour charge which will be inserted into a label view. So, my question first, is, how would the user be able to set the hourly charge and then not be able to change it by accident. I was thinking of having a tool strip with an options tab and then setting, and then you use that to fill the info, and have that hourly charge, hidden of the actuall form so that it cant be changed by mistake. Then, on to of that, how would you multiply these two numbers?
View 39 RepliesAlgorithm - Take A Database With Multiple Entries Of 11 Digit Number?
Jun 21, 2011I am trying to take a database with multiple entries of 11 digit numbers and run a check sum algorithm that adds the 12th digit to the 11 digits as an output.The algorithm is as follows:
Add sum of odd digits starting with first digit, then multiply by 3.
Add sum of even digits, then add to result of odd digits multiplied by 3.
Take result and divide by 10. The remainder is the check sum which needs to be added to the end of the original 11 digits.
Make A App That Verifies A Five Digit Credit Card Number?
Oct 31, 2011I need to make a app that verifies a five digit credit card number. The check digit is 5th and is found by multiplying the 2nd and 4th digit. Heres my current
Dim strInput As String
Dim strOutput As String
Dim intSumOfDigits As Integer
[code]....
Take Seven 2 Digit Numbers & Combine Them Into One Number To Store In A Database?
Jun 15, 2009I'm looking for a way to take seven 2 digit numbers & combine them into one number to store in a database.The numbers represent hours for each day of the week & I only have one field to store them in. Then I need to be able to take the stored number & decode it back into the original seven numbers. Anyone have any clever ideas how I can do this?
View 6 RepliesHow To Validate Numeric / Alphanumeric / Currency And 4-digit Number In Textboxes
Apr 10, 2009Can someone tell me how to validate numeric, alphanumeric, currency, and 4-digit number in textboxes ?
View 2 RepliesSplit A 2-digit Number From A Textbox And Store The Digits In Labels?
Nov 21, 2011How do I split a 2-digit number from a textbox and put the first digit in one label and the second digit in another label when a button is clicked?
View 2 RepliesReversing A Number - Reverse A Digit (Graphics Mode)not Console Based
Aug 29, 2010Is it possible.we can reverse a digit in VB.NET(Graphics mode)not console based
View 2 RepliesConvert Single Digit To Double Digit?
May 28, 2011I'm making a project that randomly picks a number from an array, but if it picks a number less than 10 then the number is a single instead of a double.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim N(2) As Integer
N(0) = "0" & 1
N(1) = "0" & 2
N(2) = "0" & 3
[Code]...
Make Double-digit Numbers From One-digit?
Apr 22, 2012Ok, I have like this:
Public basic_numbers(10) As Integer
basic_numbers(0) = 0
basic_numbers(1) = 1
[code].....
How To Make Five Digit And Three Character String
Jun 8, 2011I am trying to make a five digit string, it needs to be 5 digits long basically it cant be less then 10000 and more then 99999, but when I run the code, all the label says is "this is a five digit code" from the time I start putting in numbers to even if I got a whole lot of numbers are in it, it remands the same label, what could be wrong or am I doing this wrong
Dim myDouble As String
Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged
If myDouble >= 10000 Or myDouble <= 99999 Then
lblmessage.Text = "this is a five digit code"
Else
lblmessage.Text = "Not a 5 digit code, please renter a new one"
End If
End Sub
For the three character sting, I have
ON:Motor is online and running
OFF:Motor is online, but not running
MNT:Motor is undergoing maintenance and cleaning
NA:Motor is not available
I dont know how to start this, do I make a specific thing saying that these are the only ones you can use and if you entered something else then a text box saying incorrect or something like that?