I want to create a login system that reads the usernames and passwords for a list of arrays:[code]I have managed to code the program so it accepts the correct username and password and sends a error message when they don't match. The problem I'm having is when the user enters a username that isn't on my Username list. The program always crashes when I enter say "admin1000".[code]
View 3 RepliesFirst off, I am a total VB noob. I want to create a program so that I can store usernames and passwords. I want to be able to search by username and pull up their password. What VB program do I need to write this? Can I just use the VB in excel?
View 9 RepliesI am trying to get use to this....I need to know how to type in a database for my usernames and passwords??? I am using visual basic 2008, which I think is visual.net? anyway...heres my code:
Code:
Public Class login
Private Sub login_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Hello.Hide()
[code]....
Basically i am trying to create a programme, which needs to have some authorisation.
When the application starts up, it starts straight into the login screen.
I want the Username and Password textboxes to read the database and if they match then progress to the next form but if they dont match then a message box will appear.
I also want to create groups of people so if a certain group of people log in they go to a certain form and if the another group of people log in i want them to go to a different form.
Also i want the password box to be * instead of visable text.
dbProvider = "PROVIDER=Microsoft.Jet.OLEDB.4.0;"
dbSource = "Data Source = D:/Users.mdb"
con.ConnectionString = dbProvider & dbSource
[Code]....
I'm actually a beginner in VB express. i made about 10 easy programs, now i decided to make one a bit difficult. I'm stuck at the beginning.In first form i have 2 Textboxes and 1 Button (1username, 1password, button - sign in) and then another 2 Textboxes and 1Button (1username, 1password, button - register) I want to make something like this for beginning: When you register the infos from textboxes (username & password) are saved in some file (let's say in info.txt or info.ini). I actually want to know how to automatically save these usernames and passwords in text file when you click register button, so when you want to login, you have to use registered username&password. So if there in text file is not the username you registered or typed in textbox you can't login.
View 2 RepliesYesterday night a friend did ask me what encrypting i normally use for my login passwords on the programs i make.Wel my answer = NO Encryption cause most of programs i write with a login on it as protection is only for local use.But still lately iam starting to get more intrested to make programs that are using external databases like MySql.So my Question is how to put sh1 encryption on a password.i need this in 2 ways 1. how to use it when i register a password to a database.2. how to use it when i read the password out of the database.( i dont need to know how to make a connection to mysql or etc. just the info to encrypt.)
View 1 RepliesIs it possible to get a list of usernames (as shown in Control Panel->Users) on the PC that my app is running on? If so, is it then possible to determine the type of account (i.e. Admin, Standard AND if the account is the Built-in Guest or Built-in Administrator account)?
View 1 RepliesI have the following code, which reads data from xml file and displays it in the datagridview. It all works fine:
[Code]...
Instead of showing read data in datagridview, i'd want to read the data from xml file into one dimensional array: X(Impedances) Or is there a way to read value from this datatable into string variable without getting data from datagridview? The point is: i'd want to scan through all "Impedance" values (which are read from xml file) and compare with value y to catch the nearest value to y. How to do that?
I have recently set up a YouTube account where I will post various tutorials on how to make several programs. Code languages will very from Visual Basic to C++. I have just posted a video on how to Create a login system using SQL (In Visual Basic).
View 1 RepliesI've been looking all over for a MySql Database Login tutorial. Does anyone know how to create a login system (Using vb.net and mysql)?
View 9 RepliesI am making a login form for my A2 computing work and have got that to work but i did do some of the work and now i want to know how i can add extra users and passwords using simply textbox on another windows form [Code]
View 4 RepliesUsername:
Password:
Login
Create Username
Exit
The login button
If TextBox1.Text = "Admin" And TextBox2.Text = "ABC123" Then
Police.Show()
Me.Hide()
[code].....
That it saves the Username and Pass so the next time I login, it can use this Username and Pass.
I have to create a Login System using VB 2008, ADO.net and an MS Access 2007 Database. I've searched for two days and i've found nothing. The first form of my software is the login's form ad it's formed of two textbox (txtUsername and txtPassword) and one button (btnLogin). I can't connect to the database and I can't make the form search password and username in the database.
View 1 RepliesI have a school project due in January to make a program in vb. The problem i'm encountering is making the actual login system. I only started using vb last year and that was purely console applications. So I am completely new to forms and I don't know ANYTHING...
The login system should be complex to an extent that it shouldn't just be a simple if statement. I have to make it so that users can create an account and that username and login will save somewhere where no one can access but vb can read from and to that directory.[code]...
[Code]...
I need some trick to make some good and safe "Login" to application system with username and password.
I am building a small office application that requires users to log in dont need encryption or other sophisticated aproaches. all i need is an array of passwords that users can log in.
So If passtext.text= "test" or "test1" or test2" then
else
msgbox("Fix password")
I have a hardware which sends out packets containing 17 bytes to the comport in bursts of 3. the little test VB that I have written receives and displays the bytes in a line of 17 bytes long and works fine until it gets to around 170th packet, then it starts to mix up (looks like shifting the data left) the bytes shift mostly by one digit sometimes by two. then it will continue to give almost a packet correct and a packet shifted for about 50 packets. Then it will correct itself for a long while, but then the speed at which it receives drops. All the packets are sent 3 times, and before things go wrong (within the first 170 packets) the packet counter shows that it receives 3 packet each time but after the problem it goes to 2 packet per burst and then to one.
If i close my VB monitoring program say at packet 165 and immediately open it again, it wont go wrong for another 170 packets, this points the finger at VB. I have check my hardware, there is no problem with that.The program reads port - waits for 17 bytes - once 17 has been received it will go and buffer the packet in an array. In fact they are 2 arrays but printing fro either results in the same problem.I have tried whatever i could think of but to no avail, i am wondering if some kind of house keeping needs to be done to clear something... I am sorry the program is a bit messy but I have been making many changes to find out what the problem is - my code below:[code]
I need to write a code that reads off a value from a another system's screen and compares with fixed value in .net 2005. The code should read all 24 lines of data from the screen and match to see if it is equal to the fixed value. What I have so far is:
Code:
Dim ObjScreen(6) As Object
Private ObjOIA_Area(6) As Object
Private OIA_Area As Object
[code].....
However the code is not working. and get an error. How can you select all or read line by line to get your desired result....
Alright, So with this game I am Making with VB I am Confused on how to make the login system to make the registered user to login to his character automatically other then having to make a new character? Here is my login System code not much[code].....
View 3 RepliesI'am trying to make a login system with the dll. I want the .dll file to have the password inside of it and make another interface window that the user can login in.
View 10 Repliesi have to create something that uses OpenFileDialog, and reads textfiles that i created it.
i did this
Private Sub SK_btn_OpenFile_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles SK_btn_OpenFile.Click
SK_OpenFileDialog1.ShowDialog()
End Sub
I know how to read the File name, but i want to post the texts that are in the TextFile in my textbox when i press Open/Display file.
Private Sub OpenFileDialog1_FileOk(ByVal sender As System.Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles SK_OpenFileDialog1.FileOk
I need to create an application that reads numbers from a file. it then should display the total of the numbers, display the average of the numbers, display the highest number in the file and display the lowest number in the file. We are using visual basic 2008. I am new to this and stuck . How do I begin. I included the number set that we are supposed to read from.
Attached File(s) NumberSet.txt (990bytes)Number of downloads: 80
I'm trying to create a program which reads a text file into an array.
[Code]...
But that's just silly so how can I fix this? Lines isn't being assigned a null value it's being assigned the first line of text in the file which has text in it so I'm confused.
I am currently working with VB.net 2005. I am trying to create a login form and use a text file as a database to login. The part login form is fine but i can't connected to the text file. When i use my coding with a database such as access or mysql is work fine.
[Code]...
How do I create a Login Verification routine (Login Form) in vb.net . i have an windows application with login form contain user name , password , ok button and cancel button .
as this one:
Imports System.Data.OleDb
Public Class LoginForm1
' OK button
[Code].....
but i want to run my application from desktop and will get confirmation if the user name and password correct by checking them in MS Access Database in the server.
so the the application in the desktop and the tabel of user name and password in the server.
How do I create a Login Verification routine (Login Form) and make the password case sensitive?Please remember to mark the replies as answers if they help and unmark them if they provide no help.
View 3 Repliesbasically i want to create a login to my program which uses the same username and password as windows login.I already know how to retrieve username and auto place it in the username box using
TextBox1.Text = Environment.UserName.ToString
i wondered is there an easy way to only allow access if the password matches up to their logon? i dont know about setting up databases but i dont think this option would work because each member of staff can personally choose their password.
I'm writing an application which has user authentication system, basically, when the user open the software, he has to enter his/hers username and password which are retrieved form a access data base, and if the user is set as admin then it enable some features, I couldn't figure out how to read the column lets say, IsAdmin table, which will store an value of 1 or 0 for example. I need a concept of how build a login system with levels or whatever you guys call it...
View 2 RepliesHi, I'm working on a program that reads text entered into a textbox and creates a list of items by separating entries by commas. Everything is working fine, except, because I am using an array to store the items in the list, I have a limited number of entries. This is only a problem because, as it is written currently, each comma counts as an individual entry. Therefore, users can enter ",,," for example, and it would use up 3 places in the array.
I'm looking for a way to check to make sure there is text after the comma before adding an entry. I've attempted to use the .substring command to check the character after, which works until it gets to the last character. Because there is no character after that, it will give an error.
Here is my code for extra clarity:
Public Class frmMain
Dim intCounter As Integer 'Stores the # of commas in the string
Dim Messages(49) As MessageProperties
[code]...
I'm currently working on updating an ms access database by using this code:the error is: System.Windows.Forms.MouseEventArgs
I don't know what is it, can you help me solve my problem, adding, deleting, listing, searching for records is already working. If I can finish this update then I can proceed with the system that we are doing for a company for our school project
[Code]...