I have a text box on a form. It is a masked text box that shows in the format XX/XX.It is used for the expiry date of a credit card.What I need to do is how to take a value like 08/11 which means August, 2011 and check that it is in the future.For example something like 08/09 would be last year and hence would be invalid.Is there any way to take this string and check?
View 3 RepliesI 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
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I am looking for a solution to implement Credit Card processing to a POS system I have written. I have been coding VB for about 7 years but never had a need to process credit cards.
View 1 RepliesI have a Credit Card Number in an XML Message and I want to use a regex to find the Credit Card Number and encrypt it. All numbers are 16 characters long and they are not always in the same place in the xml, so basically I think I just need to find a string that is 16 characters and decrypt it, but I am not sure how.
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I am working on a Credit Card Project Program. Where you can create an account by typing in an account number which then starts you out with a $1,000 credit limit and balance.I have most of all the programming done for the project. Except for the updating of the current balance when charges are made and I'm having a problem with the interest which works but only shows you the interest fee when you calculate and not the interest fee + balance due. But I wont worry about that now.
What is the method of doing this. Can I write a new function that will update the balance available based on the charges or payments made? Or can I somehow program that into the current functions?
[URL] I am using the magtek Intellistripe 65 insert card reader and i want to connect the device thru my POS application developed in .NET. I have also tried the sample VB code provided by magtek. But i am not able to access the device.
View 2 RepliesI just joined because I'm a newb/student in VB. Currently taking a VB course but just don't understand why this is giving me a problem. If anyone can explain/help it would be great. The problem lies with the "red" 1 that is highlighted. I don't understand what is wrong with it. PS: this is statement applies to the LUHN method for credit card verification.
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I 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
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When user click it, it will bring a second form with a waiting animated gif sitted into picturebox..but at the same time it will call processingcard.dll to link to the bank and get results. when finish getting results, the form2 will be closed. if i just show form 2 with animated gif 'Please wait...while processing" when i click button, it works fine[code]...
View 4 Replieshow to set expiry date whenever my passport is expiry its automatically ALERT is there any code for expiration
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how could i make my datetimepicker to compute for the expiry date within 5 years... example date grated is 1/2/2012 and expires on 1/2/2016
I am developing one web application using VB.net. This applicaton this site is actually meant to fetch the details of the active directory users. When i enter the user id in the text box and press enter it should give the complete properties of the user account. This includes : Account Creation date, modification date, password last set, user cannot change password, user account expiry,user must change password at next logon etc. I have done almost all the things. but still i am not able to read the following properties : Account Expiration date, User cannot change password,user must change password at next logon.
View 1 RepliesI 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
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say a user buys a 6 month subscription to my online app. Using c# or vb.net, How would I work out what the expiry date should be to be inserted into the database.
View 2 RepliesI've got a site using .netCART. It's running fine in production with Windows Server 2003 and .NET 2.0. On the new server (Windows Server 2008) everything is working except for credit card decryption in the store admin. No errors are being sent, no exceptions thrown, just the encrypted string being output to the screen instead of a decrypted credit card number.
Dim strCCEncrypt As String
strCCEncrypt = Trim(DataRow.Item("CreditCard"))
strCCEncrypt = tools.Decrypt(strCCEncrypt) 'tools is a .netCART utility
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How can i check the system date format? Tried with the code below, but when i change my system's date format to another date format to test the code, it's still showing the date format before changed!
System.Globalization.CultureInfo.CurrentCulture.DateTimeFormat.ShortDatePattern()
I have a textbox where a user is supposed to enter a date. How can I check whether the entered date is in the correct date format?
Like this: 02/02/2008
not like this 022/22/-1
not like this 2009/02/02
not like this 02/Jun/2015
not like this 02/abc/2010
(I don't want to use DateTimePicker or MonthCalender).
EDIT 1 I tried it like this
Private Sub txtHireDate_Validated(ByVal sender As Object, ByVal e As System.EventArgs) Handles txtHireDate.Validated
Dim dateString As String = txtHireDate.Text
Dim formats As String = "MM/dd/yyyy"
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But its showing some errors?
I want to validate textbox so that it will accept only future date. Can I have regular expression for the same.
View 2 Replieswith a system of regional date configuration as dd/MM/yy
isdate("13/08/10 10:00") ' returns true, but with a system of regional date configuration as MM/dd/yy
isdate("13/08/10 10:00") ' returns false
how to handle this situation, all i need is i want to check a string for convert able to valid date format & then convert the same.
I'm using the ASP.Net Membership system but I'm having an issue with the LastActivityDate for the users in the database. For some users, their last activity date is in the future...
View 3 RepliesI have a form where a user can choose an election date. One of the most frequent errors users make is entering the incorrect due dates of reports. Therefore, I am attempting to generate the report due dates in the application using the report guidelines. For instance, reports are due 32 and 15 days prior to the election and 30 and 60 days after an election.
I know the following won't work but you get the jest of what I am attempting to do. I am assuming I will need to break down the month, day and year somehow before I subtract or add the days to the date to get the actual report date.
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I need to have the Calendar Control start 36 hours after the current date. How would I do that?
I have a form that requires that the future date has to be at least 36 hours from the current date in the order for the workers involved to be able to complete the task.
check values and keep the form from processing:
Protected Sub calPickupDate_SelectionChanged(sender As Object, e As System.EventArgs) Handles calPickupDate.SelectionChanged
If calPickupDate.SelectedDate < Today.AddHours(36) Then
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I am trying to flag rows in a grid in the following order based on a date column
When 2 or more days old from today
then RED
When 1 day old then YELLOW
When 0 days old then GREEN
When the date is in the future then
BLUE
I have the following which is working fine except for the future dates which are GREEN instead of BLUE.
Dim myDate As DateTime = CType(grdSummaryView.GetRowCellValue(e.RowHandle, "myDate"), DateTime)
Select Case Now.Subtract(myDate).Days
'2 or more days old then RED FLAG
Case Is >= 2
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I am teaching myself VB while creating a basic application I can use at work. Is there something in VB that will calculate a past and future date from a specific date. For instance, an Election Date falls on November 2, 2011. Once this election date is entered I want the program to calculate the reporting dates. The first report due is due exactly 32 days prior to the election. The 30 day post is due 30 days after the election.
View 2 RepliesI made a programme through which I get a feed back clicking a button for a future warning date. I am giving the code below so that you can givthe problem is, I have to take 12 DateTimePicker to do that job in a single form which is creating a saving problem means when I click save button it takes long time to save. Now, I thought If I can do it by using TextBoxn a date format would easeup my save problem. Or it can be MaskedTextBox as well. Below is my code if any one can give me the solution.
Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If DateTime.Now > DateTimePicker1.Value.AddYears(1).AddDays(1) Then
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I have below code in vb.net.
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I want to check at client end whether the entered date in text box is future date. I mean this textbox should allow future date only. code the above problem using jquery or vb.net
example: inside regional date format setting i set "Short date format dd/MMM/yyyy" and inside vb.net program i set "strSQL = strSQL & ",'" & Date(Date.Now.ToString("dd/MM/yyyy")) & "'" ----> working fine. if user changed the regional date format setting to other format like "mm/dd/yy" facing problem during saving record into sql table. error date conversion. It's possible to avoid using computer regional date format from vb.net? or have any other way...
View 2 Repliesi am trying to insert date in dd/mm/yy format in sql table from a textbox but everytime the default date 01/01/00 goes in table.
View 19 RepliesI am working on a project inwhich I want same date format in all project forms. I want to use a form for setting/resetting date format for whole project. whenever I will change date format in this settings form, there should be this new date format available in all forms. how can I implement this?
View 8 RepliesI want give a date from user to string Such as "2011-10-11" and for example my system date format is : dd/mm/YYYY
How can i convert 2011-10-11 To Default System Date Format ( In My Example : 11/10/2011 )