Login Form - Comparing Password On SQL?

Aug 10, 2009

I've setup a login form on an app I am building and I am using that to pull back user details from SQL @USername, then comparing the password on SQL to the one typed into the login form. The username and password get pulled back from SQL and fill two text boxes which are hidden from the user under a logo image (I haven't actually set them to visible = false cause I've had that cause errors itself with other things before)

Code on the Ok button on the login form:
Private Sub OK_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OK.Click
Dim UserLogin = Trim(UsernameTB.Text)
Dim UserPass = Trim(PasswordTB.Text)
If String.IsNullOrEmpty(UsernameTB.Text) Then
[Code] .....

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<?xml version="1.0" encoding="utf-8" ?>
<Customers>
<Customer>
<FirstName>Jim</FirstName>
[Code] .....

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[Code]...

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Imports System.Data.SqlClient.SqlConnection
Imports System.Data.SqlClient.SqlCommand
Public Class Login
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[Code] .....

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Imports System.Data.OleDb
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[code]....

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i have a login form in a banking project.i set a userid and password for this login form and i did the code accordingly,it works good.In my form there are two fields namely:Userid and Password and a button named Login.

But i cant get any idea about what to do when the user wants to create their own userid and password?

I think i need to add a few more buttons to enable the user to create their own userid and password but i cant get the idea......i need some help.

Again,if i allow the user to create their own userid and password then anyone can use my project by creating a new account.........

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I'm trying to set up a login form which draws the username/password from an online database but keep getting the same error(shown in attachment).

Imports System.Data.SqlClient
Imports MySql.Data.MySqlClient
Public Class LoginForm1

[code]....

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Design a form, which contain a TEXTBOX control that accept a UserID input, with a CommandButton control to perform a validation based on the criteria listed below. Display a Message on whether the UserID is Valid.

Criteria:

The UserID must contains SIX digits follow by a single character, limit the entry to a maximum of seven characters only.

The postfix character of the UserID is derived from the summation of all the six digits divided by seven and using the remain as followed:

Remain
Character
0
A

[Code].....

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[code]....

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I have a problem with the code, I have input the valid username and password in the form textbox to input the strings in php, but it keep displaying the messagebox that says login failed.

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
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[CODE]...

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[Code]...

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why the following Sub does not work as expected. It has no compile errors but it does not work. It suppose to validate a password entered by a user on a login form with users password in a table called 'passwd' in the LgaPayroll database. If the password entered matches what is in the password field of the 'passwd' table then it will display a form else, it will tell the user 'The password you enter was invalid". My problem is; even when you entered a password that is in the 'passwd' table, it is tells you 'The password you enter was invalid'. Below is the Sub:

Private Sub btnOK_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnOK.Click
' Set the SelectCommand properties...
objDataAdapter.SelectCommand = New SqlCommand()

[Code].....

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