I need alot of help... I was making a prototype "registration code generator" that creates 25 character GUIDs and outputs them to a listbox. then after it outputs, it does this:
For Each s As Object In ListBox1.Items
For Each z As Char In s
If counter = 4 Then
counter = 0
[Code]...
Okay, this is the final part to my program, making the registration keys...
i have no clue on where to start, i think it starts w/something like this, right?[code]...
I m making registration form for teachers in which teach ID is one column name i want message box error if id number already exist in side the table means uniqe ID e.g if id no 1 is already exist then 1 should not be added when next time user register the new teacher with id no 1 with msg box this is my coding
Private Sub btnsave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnsave.Click
Dim con As New SqlConnection("Data Source=.DHEERAJ;AttachDbFilename=D:Program FilesMicrosoft SQL ServerMSSQL.2MSSQLDataschools.mdf;Integrated Security=True;User Instance=false;initial catalog=schools")
[code].....
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Hi!
Last time this forum was the most helpful in solving my problems in vb 2005?This time I am writing a "lottery number picking" program. The program randomly picks 7 numbers from 39, with pre defined conditions on the strength of statistical data, and writes the possible combinations in a text file. It works fine, BUT- the program generates number of combinations I tell it to generate. With other words it works like
For i = 0 to 1000
generate_number()
Next i
So this way I get 1000 combinations. how can I make the program generate all the possible combinations by itself?For example:
Do while (not reached the last combination)
generate_number()
Loop
While I don't know exactly how many combinations there are, I have a slight problem knowing which the "last" combination is.
I have an application and an sql server.i would like to add Registration Code for the system.that should include the number of user
View 4 RepliesI recently downloaded Visual Basic Web Developer, Visual C# 2010 Express, and Visual C++ 2010 Express asI intend to learn ASP.NET, C#, and C++ after I have learned more about VB.NET (wish me luck, haha.)I am creating a text file with all of my registration codes, but I did not keep my registration code for Visual Basic (neither in records norn email.) I have tried re-clicking the 'Register Product' button, but I just get a message saying that I havealready obtained a key. Is there someplace I can go within the program to view my code?
View 5 RepliesThe Source Code Of A Computerized Registration System And Computerized
View 1 RepliesI have 16 student machines who can not access the windows live login during the school hours due to filtering restrictions. They need to register Visual Basic 2008 Express Edition within 30 days or the product becomes useless. The registration process wants them to login to access the keys. Is there an alternative way to obtain the keys as a group, rather than one-by-one?Everything I've found redirects to the 2010 version, but the 2008 version works with our textbooks.
View 3 Replies[code...]
In particular the MetadataProviderFactory Line... I can't quite seem to figure out how it should look in VB.
im trying to input a registration/login code into an ecommerce application whereby a customer shall be able to create a new account using their unique email, first name, surname, and a password. If the customer has an account, s/he will be able to purchase items by logging into the system using his/her email and password
View 8 RepliesIn the Designer of my forms I usually have this for Singleton purposes.[code]Is there any hack in the IDE that would let me just press a button or something and it will automatically add the code I have above to the selected Designer?I can always type or copy/paste/modify it but I thought there could be something that I could set to just automate this redundant task.
View 7 Replies1. Generates Class files based on SQL server database.2. Generates Class properties.3.Generates Class contructors.4. Generates a Singleton class and it's corresponding Collection class.5. Outputs individual files or the code to copy and paste.
View 1 RepliesI am looking for a way to auto generate a flow chart for my VB Code, are there any tools to get this done?
View 1 RepliesHow do I make a random number and letter generator? Im making a setup and I only want certain people to be able to use it. I want the keys in this format
Either
1.
XXX-XXX-XXX
2.
123-123-123
bill system. advertize. accept e-cards.
View 1 RepliesFor Example: I need to develop a Small Inventory program for nearby Super Market and the need is a QR Code should be Generated for the Model Number of a Product Eg: A for Iphone and then we scan the QR Code image by Scanner connected to the PC it should automatically fill the letter " A " in the input box so that i can use that for searching the product " Iphone "
View 2 RepliesI'm in the middle of developing a prototype that will connect to the database. The problem I'm having is that I'm seeing more than one ways of retrieving data from the database either by adding databindings or just use a loop to loop through each rows to get a column or two.
I'll try to put this clearer because I'm not sure what I'm asking myself. I have no idea what approach to take. The purpose for the application is to retrieve as well as add, update, and delete data from that database. I wanted to display the retrieved data onto any controls like a textbox and such.
Right now, I'm confused to figure out what's the best way to program: by bindings or just retrievals. Any suggestions?
I've been trying to create a working keygen for three months and I havn't figured it out. I first inserted two buttons and named one "Generate" and the other "Exit" and then I put in a textbox. After that I put in the code and debugged it every time I pressed the Generate button a 0 just popped up in the textbox. my code is below.
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[CODE].....................
I'm trying to make a program (in VB 2008 Express Edition) that will take text (from a textbox) and then switch the letters (say a->f and A->F) and will put the result into a second textbox when I click a button. How do I code the program so that it will search through the textbox and find all of a certain letter (say a) and replace it, then search for the next letters (say b-z) and replace them?
View 4 Repliesregistration code for vb 2008 express edition.
View 2 RepliesIm having trouble with making a code for a hotkey.Im making a small program for a game. The program will run in the background, when your playing the game in either window mode or fullscreen. Then when you press "1" etc. ingame, i want a short beep to come 20 seconds later. I also need to be able to start the tool and stop the tool so its only active when you want.
View 1 Repliesi was able to create my first db which i would like to use at our office. Its a counter transaction ticketing system. Finding my way through the different code, i was able to came up with these one.
Public Class Form1
Dim iTicket As Integer
Function getTicket()[code]....
But the thing is, even if i google the steps on how to print and even ask other friend how to do it, iam having a hard time making code for printing. Would it be to much if i ask you friends to give me an idea or a sample what code should i put for me to able to finish this project?
Well I recently found a code for making a file spliter, the code is simple (of course need some modification) and it work great.
The code is like this:
Dim iFileSize As Int32
iFileSize = textbox_size.text
Dim SplitFileStream As System.IO.FileStream
[CODE]...
The only problem is understanding the logic of the code. How can it work? How can it know the next time of bytes to write is 200 to 400 if the split size is 200?
im making a basic program, The relevant code is
SendKeys.Send("0000")
SendKeys.Send("{ENTER}")
Threading.Thread.Sleep(500)
but, i need to make it go from 0000 to 9999. but i don't wanna do 9999*3 lines of code. i need help. i got no idea about how to do this, i was trying to make my own program there would generrate the code for me, but did pretty much crash... so...
SendKeys.Send("0000")
SendKeys.Send("{ENTER}")
Threading.Thread.Sleep(500)
[code]......
I have made some real time systems (softwares). Now I want to make an system (software) in vb.net 2008 which reads an bar-code saves the data in the database (SQL Server database). I am very new in making these types of system, thus i would like your help of making an system using bar-code scanner through vb.net 2008. Specific to my question I will require all the steps for creating an bar-code system through vb.net 2008. I am waiting for your reply.
View 1 RepliesHow do I make my WebBrowser one do this code?
View 2 Repliesshow me the VB code behind making a Timer?
View 2 RepliesI am using a rich text box and I know a simple way to change the color of a selected word...but I can't make it do it for all the words.Do I need a custom control for this sort of thing...?Also, example: word "If" becomes blue, and all If's in the RTB would be blue.
View 9 RepliesI've got a basic VB.net 2.0 application together in VisualStudio 2005. Within a form, I've tied [enter] in several text boxes to a button. What I'd like to do is "press" the button from getField_KeyDown() to give the user a visual indication of what's happening.With the code below, the button click work is done but the button's look doesn't change and the user is left without feedback.
Private Sub getField_KeyDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles txtGetKey.KeyDown
If e.KeyCode = Keys.Enter Then
e.Handled = True
Call btnGet.PerformClick()
End If
End Sub
How can I make the button looked pressed while the btnGet.PerformClick() work is being done?
I downloaded this code from the web that Wierddemon gave me in my previous thread. This solution contains 2 projects (CurrencyControlTest and CurrencyTextBox) There are some things that I don't understand:
1. What's the type of form1.vb and program.vb in the CurrencyControlTest Project? Are they classes, or windows Forms or module?
2. This is the code in Program.vb
Imports Microsoft.VisualBasic
Imports System
Imports System.Collections.Generic
[CODE]...
What's the effect of <STAThread> code?
3. What is exactly the "Namespace" doing in this code? because when I removed the namespace, An error indicating that Form1 is not declared appeared. What is namespace? what does it do? Can anyone give sample code to emphasize the function and how and when to use the keyword "Namespace"?
4. This is code for Form1 in CurrencyControlTest Project
Imports Microsoft.VisualBasic
Imports System
Imports System.Collections.Generic
[CODE]...
What's with the "public partial class Form1"? what does "partial" do? When i right-clicked on the InitializeComponent(), A portion of code appeared suddenly with the header #Region. What is this? and when re-open the Form1 in "View Code" mode, they're gone.
