Maybe it's a simple quiestion but i realy don't know how to solve it... i've searched on google bu i did not find any clue how can i check the MaskedTextBox..I have put the mask "##/##/####" (to serve as a date input) and i dont know how can i check this do not be empty... i have tried "__/__/____" and also " / / " and "##/##/####" but nothings working.
View 4 RepliesI have used a maskedtextbox with the following input Mask##?-##.##' >?The first 6 characters are numbers and the last character has to be a uppercase letter. But when i use this al letters are good. But i want to use only certain letters. For example the N and S letters. How can i set this?
View 1 RepliesBelow is the code that I have while reading the DGV column and let me know what I'm doing wrong, here.
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i create project using VB6 when i try to drag cantrol in my form it give me error (Cannot load verification module) the control is " fplivx activeX control module "
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i have been trying to register VB08 express for over an hour and have not recieved the verification email yet. has this happened to anyone yet? I tried multiple email addresses, checked junk folder...refreshed, sign out...etc.
View 2 RepliesI have an VB.net Login Module and what I want to do in this module is to know whether the account being logged in is being used or it's online. Ex:
If I logged in then it will say "User is already logged in" etc etc. I am using MS SQL server 2008 r2 for may database.
Imports System.Data
Imports System.Data.SqlClient
Public Class Login
Public sstatus As String
Private Sub GlassButton1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles GlassButton1.Click
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I'm new with VB programming and would like to know if anyone can look/test this code I have written. I don't have the ability to test right now because I'm at work and can't get VB installed on my desktop. This program is supposed to display the amount of gross pay for employees based on their weekly sales (if $5000 or more times 9% + $200) while using a one dimensional array.
View 2 RepliesMy project requires users to be 18+. I have supplied a textbox for birthdate entry, but I don't know if that's the best way. Also, I don't know how to format it so that it only accepts date entry.
Next is the calculation part... yikes.
today - bithday = age
Code:
Private Sub Birthday_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Birthday.TextChanged
End Sub
I am just down right confused right now... I made a slight modification to my games saving system, and it worked before this modification... I only changed "one" thing in the saving and loading of the save file system.
now it went from working when trying to verify the save data, to throwing this error when I enter the username of "test" and the password of "test...
there is not a save file for that combination of data, and prior to the save/load system edits, it would realize that, and throw a message box error that I made for that senario... but now, it does this when trying to load the human class. that save file that it is trying to load and verify that does not exist is supposed to be "test the human"
"Could not find a part of the path 'F:\Ashes of Redemption\Ashes Of Redemption(01-02-2012)\Ashes Of Redemption\bin\Debug100 the 250\100 the 250.txt'."
it is supposed to throw my message box stating that there is no file in that combination, and the edits that I made only write a description of what each line of code is in the game... I had also made a variable called "nulldata" that takes those lines of text, and keeps them out of the games loaded data, so for each string of text that I added, it is basically rendered useless upon the save file being loaded...if you enter valid save information, then it loads just fine... so I am just plain confused right now.
the NEW save function'[code...]
now I am going to root around in my code now to see if I cant figure out by chance what is going on here.
Lets say I have function returns an object and that object has 10 properties. for example
myStudent.ID
myStudent.Name
myStudent.Surname
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Is there anyway to make a program that auto detect the verification code ..like when sign up for a site..because i want to make a program like roboforum.
View 11 RepliesHow can I set a verification that something is checked in a set of radio buttons within a group box? So... groupbox1 has rad1, rad2, rad3. I want to verify that at least one of them is checked. I was going to do a select case, but I can't figure the syntax for the cases... Visual Studio 2008, btw
View 12 RepliesI'm looking to sell some Applications i have made. What's the best way i can protect my applications from being spread around easily? I know there's no Sure-fire way of protecting my App.. but there must be a good program or something that will give me a helping hand.
View 1 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 am new to the forum I have been working on a GUI to export verification data to a text file. I have it set up to work at home but I would like to adapt the code so that it will write the text file to the directory that I use at work also. I have the areas commented out where things that I have attempted do not work. Here is what I have for code:
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I am writing a program that and like to implement data verification system. It needs to return a unique string for any value entered. My question boils down to: is it possible for an AES function to return the same value for two different entries? The source values will becoming from data held on a magnetic stripe card.
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I posted this through my phone originally, and I am now just getting back to this post.
I've been looking around the web and while reading Wikipedia's article on SHA, I see that SHA-2 (SHA-256/224, SHA-512/384) have no detected collisions (assuming the article is accurate/up-to-date). This is desirable. Any recommendations on what version of SHA-2 I should use?
I'm about to make verification code to my app it would be built out of random characters and numbers,i have no problem making a custom one,but before i go and do it i just wanted to ask if there is built in method of such thing .NET environment
View 3 Repliesi can get this program to read the file but i now want to be able to call on the file from another form and use specific pieces of data for login verification and balance handling purposes.
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above is the contents of my txtfile but how do i reference anything in it?
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What exactly is a MaskedTextProvider? What is it used for?? and How do i use it?I mostly understand the MaskedTextBox control, but I'm not sure what the connection is between to two is?how to go about using the two... Does anyone know of any??? I found plenty of the MaskedtextBox, but none with a decent explaination of the use of the MaskedTextProvider.
View 3 Repliesi recently use vs 2010 but i cant see the MaskedTextBox control in the toolbox.
View 1 RepliesI'm trying to use a MaskedTextBox for a form. I'm not sure what to put for the Name property?
Is it: maskPhone or mskPhone or mtbPhone or ......?
How do I get just the value that is typed into a MaskedTextBox?For instance, if I have a MaskedTextBox with the mask of (999) 000-0000 x000000, and the user typed in a phone number, like (905) 555-1234 x6869.How do I get back the raw number value, without the mask? (ie: 90555512346869)
View 3 RepliesAfter experimenting around with DevExpress controls and adding them to my form, Custom mask do not seem to work on the MaskedTextBox. If I place a custom mask and debug, I get a null reference exception.
It seems to be the maskedTextBox's mask property that is doing this. I have tried setting the mask through design and by code. However, neither way works.
My question is, is it possible to use a TextBox as a maskedTextbox? To be able to format it? I need the user to enter in hours, minutes, seconds like hh:mm:ss or 00:00:00.
Here's the error I get:
"NullReferenceException was unhandled. Object reference not set to an instance of an object."
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I am creating a WinForms application using VS.NET 2005, VB.NET, and SQL Server 2000. My problem is the MaskedTextBox control. I can successfully insert the value in an SQL Server table column as smalldate such as 3/17/2009, but it displays as 31/72/009.
I tried the following with no success:mskLastPayment.Text = Format(rdr!LastPayment).ToString("MM/dd/yyyy")mskLastPayment.Text = rdr!LastPayment.ToString("MM/dd/yyyy")mskLastPayment.Text = CType(rdr!LastPayment.ToString(), DateTime).ToShortDateString
how to understand a msakeditbox in null?
View 4 RepliesWhat can I do when we need to write in maskedtextbox this format
like : 0.00
result : 1235422.10
first level any digits
second level just 2 digits
for example i want to put 0000012, but the zero number not showing.
View 1 RepliesI am trying to find a way to validate my MaskedTextBox control called mskDate which is a short date property. I need to determine whether the user entered a date in the MaskedTextBox control. I cannot use the Not IsDate function because what happens if the user does not make an entry, then the Not IsDate would not work because the user is not required to enter a date. What happens if the user only enters 03/? This would not be considered a date, but a valid date is required. I tried using the substring to see if an entry has been made but it does not work because of the / / format.
View 2 RepliesIs it possible to disable a maskedtextbox and not have it greyed out? I have several on my form, some of them I allow input and some I don't. I'd like to have the enabled boxes one color and the disabled another color.
View 2 RepliesMaskedTextBox Property does not work
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