I am working on a registration form and it requires to put in password that's atleast 6 characters long but shouldn't be more than 15. And contains atleast one number.
How do I write code to check if the user have met the requirements or not?
I have developed a task Using VB.net (windows Application). I want to create a Login window for the Current user only allowed to use my application.So In my Login window UserNAme textbox I have showed the curent Login UserNAme like,
txtUserName.Text=Environment.UserDomainName & "" & Environment.UserName
And I have set txtUserName.Readonly =True.
Now the User to type the Password in my application password textbox.
[code]......
I am implementing a system where the user can Reset their password if they have forgotten it.Once it is reset I want to give them the option of changing the password so that it will be something more memorable to them.The password is hashed and if i enter in the correct old password and new password the password does change.If I enter in the wrong old password and new password the password doesnt change.Is there a way to match the old password with the old password field in code behind so I can throw up an error to the user to tell them what is wrong? [code]
View 1 RepliesI am trying to validate a password by using a regex.
* Must be between 6 to 16 characters long
* Must contain atleast 1 uppercase letter
* Must contain atleast 1 lowercase letter
* Must contain atleast 1 numeric "digit"
So far so good ...
(?!^[0-9]*$)(?!^[a-zA-Z]*$)^([a-zA-Z0-9]{6,16})$
Can optionally have any number of special characters listed below.
I had one user in my db and when using this code it validates my username and password, but when I added a second user, it does not validate the second user, only the first one. I removed the first user and added it to my db after the new user, but it did the same. What can I do to make sure it actually runs through rows in the db and compare the information in the text box with the information in the database?
Dim
sqlStatments As New SqlClient.SqlCommand( _
"SELECT * FROM Users", UCSMISDB)
[Code].....
I was wondering how i can validate in my app if the user has entered a valid windowsusername and password i.e.:
View 3 RepliesSay i'm creating an email list. How would I validate the field to not accept text without the '@' sign?
View 1 RepliesHow do i validate a field which contain both characters and numbers? For example, I have a field call Item ID and it must be in the form of ABC123 where ABC is the fix characters that will appear in all the Item ID and 123 is the one that will change accordingly.
View 2 RepliesDense student here with little sleep here during finals week...I have a text field being read on a button click event (along with lots of other information being read). This field needs to have a number entered.
I either:
1) Force a default value (i.e. - "2")
2) Verify there's something in the field AND that something is numeric...
I have a textbox that acts as a password field. It is supposed to contain a value at least 8 characters long and not greater than 12 characters in length. I need to construct an if statement that checks to see if there is at least 1 numeric character in the string and at least one letter in the string.
View 4 RepliesThis is the code I'm using:
Dim conn As MySqlConnection
conn = New MySQLConnection()
conn.ConnectionString = "server=domain.com; user id=user; password=password; database=dbname"
[Code].....
So how can I create the tables for the username and password field?
I have created my own virtural keyboard for a touch screen interface. I used two forms,one for the main program and one for my keyboard so the keyboard will have opacity of 90%.in my main program form's login screen, i have two textboxs, one for username one for password. the password is a textbox with UseSystemPasswordChar property set to True.I used the technique descripted here: How to: Simulate Mouse and Keyboard Events in Code to send a keycode to different form window.
1. get window handler using FindWindow()
2. set main program form as focused window by SetForgoundWindow()
3. then sendkeys.send(keycodes)
it worked perfectly when i try to input letters to the username by the virtual keyboard, but it not really working for the password textbox.Strange when i set the password textbox 's UseSystemPasswordChar to False again it worked. if i put my virtual keyboard as one of the controls of my main program form it also works but i then don't have the opacity property for my keyboard. of course, in this case the Findwindow() and setforgroundwindow() is not needed.
I have a piece of code that is suppose to update the password field when the user wants to change password but I get an error line:
An unhandled exception of type 'System.Data.OleDb.OleDbException' occurred in system.data.dll
error line: cmd.ExecuteNonQuery()
If BindingContext(ds, "login").Position < 0 Then
MsgBox("Database Is Empty !", MsgBoxStyle.Information, "Records Management System")
Exit Sub
End If
If ComboBox1.Text = "" Then
[Code] .....
I have created my own virtural keyboard for a touch screen interface. I used two forms,one for the main program and one for my keyboard so the keyboard will have opacity of 90%. in my main program form's login screen, i have two textboxs, one for username one for password. the password is a textbox with UseSystemPasswordChar property set to True.
[Code]...
I am writing a program which allows me to log in to my favorite forum, and displays me my fav. threads, and automatically refreshes current thread every 30 seconds or so.For this, I first need to login to the forum page. Fortunately, the forum allows to login during posting a new message, and it's a public forum so browsing threads is possible without login. Therefore I can directly jump to the "edit article" page without login, fill in login information and write the post, and then send it altogether. Here is an example link for that:
[URL]
Here comes my problem. I have searched for autofilling values and my code is like this:
Dim mydoc As HtmlDocument = sender.Document
Dim mynickname As HtmlElementCollection = mydoc.Forms("f").GetElementsByTagName("input").GetElementsByName("nickname")
Dim mypass As HtmlElementCollection = mydoc.Forms("f").GetElementsByTagName("input").GetElementsByName("pass")
If mypass.Count > 0 Then
[code]....
I guess it doesn't set the value attribute, at least during debugging the 'outerHTML' property stays like this:
"<INPUT class=form_input type=password value="" name=pass>"
basicly im attempting to make a key encoder type application that i want to begin encrypting keystrokes when the user focuses on a password field . Is it possible for a windows forms application to do this and if so how can it be done ?
View 4 RepliesI'm trying to figure out a way to validate the user data entered:
[Code]...
This is in MVC3, VB.net. I'm looking for an easy way to validate a users input data into the editorfor field.
'Create field in table
Public Sub createField(ByVal tableName As String, ByVal fieldName As String, ByVal fieldType As String)
[Code]....
I get: Syntax error in field definition, when I try to create "password" field. In all other cases (other field names) it works fine.
When trying to create it manually with MS-Access, I have no problem either.
I'm trying to create a password change form for my company's vendors. There are a couple of scenarios I could encounter doing this:
1 - User enters invalid current password
2 - New passwords do not match
3 - User's account is locked
4 - User cannot authenticate because password is expired
It's case 4 that I'm struggling with, because their is no way for me to take the password the user entered and verify it against active directory without getting an error.
How do you get a textbox being using for password entry to display the black circle that you often see in web forms, on the iphone etc etc?
I can change the PasswordChar property to an asterisk no problem and even copying and pasting symbols inserted into Word seemed to work - just couldn't find a symbol that looked like a bullet point!
Can this actually be achieved for a standalone exe, or is it something unique to web forms? Surely copying and pasting symbols from Word isn't actually the answer?
I read and write the cells from excell sheet sucessfully. now please i need a advise on the following
1. Where i save the file? at the time of project publishing it include also with the project?
2. how i check file exits or not?
3. How i pass the password if excell sheet have password and enable macro?
I'm currently working on a CRM project in vb.net. I want the program to start with a prompt that asks for a password and if the user enters the correct password then the main form loads.Im having some problems wrapping my mind around this...
View 10 RepliesI am looking to create a simple password box that will ask the user for a username and pass, if the user is validated against the usernames and passwords in an .ini file the login box will close and launch a program also stated in the .ini file. I would also like to be able to launch different programs for different users.
View 16 RepliesIs there a way to inerlock letters in a password. EX: lets say my password is 1234567password, is their a way to interlock or inject random letters/numbers /symbols/etc into the password? Ok so our password is = 1234567password is their a way to make it like this = g1i2h3h4q5d6g7rp4a7s;?s`w6o+r/d5
View 3 Replieshow to reset the existing password(topsecret)with a new password by using the "replace" keyword
in the below code shown
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code]....
I have a button on my Form called EditingButton that will have a DialogBox appear asking for a password. How can I have "*" show instead of the Password it-self when the user enters the password?[URL]...
View 1 RepliesI am building a data based application using VB 2008 an SQL Express. I need to create textboxes on my form using code, (With & End With) method. I need a simple code string that will allow the app to check if the field to wich the textbox wil be databound is Nul, If so the textbox will not be created.
View 8 RepliesThere are lots of questions about this but I've not been able to solve my problem using the answers to any of them (after many, many attempts..)
I'm working in vb.net creating an asp.net web application. I have an SqlDataSource and a GridView on my page.
I want to change the DoNotMail boolean value represented by a Gridview checkbox and automatically update in the database if the checkbox is checked from 0 (False, Will Mail) to 1 (True, Won't Mail) here is the code I used. [code]...
is it possible to do a two way sync on the entire gridview when the user hits a button so you don't have to do an update every time a row is changed? because the user might check the box and then check another box then uncheck a box and it would be a lot of updates...
Dim query as String = "Select * from openquery (devbook, 'SELECT wb.arrival_time FROM web_bookings wb ')"All I need is to convert my arrival_time into a datetime field in the query
View 1 RepliesI am trying to edit a dbf table. I would like to be able to rename field headings and change the field type, ie string or dbl, and the size of the field. is this possible to do with vb.net. I have connected to the dbf file but after that am lost on what to do.
View 3 Replies