I 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 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.
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Say i'm creating an email list. How would I validate the field to not accept text without the '@' sign?
View 1 RepliesI'm having some problems with validating Urls and IP addresses with RegEx.
This regular expression doesn't work properly. For example, it returns True for "www.123.123.123.123" and "http://www.123.123.123.123".
vb.net
Regex.IsMatch(txtTextBox.Text, "(((http|https)://)|(www.))+(([a-zA-Z0-9._-]+.[a-zA-Z]{2,6})|([0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}))")
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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)
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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?
As the title of the question, I need to validate regex using the following values:
(Maximum 2 decimal places, and 9 integers) with an optional percent symbol.
Valid:
10%
0%
1111111.12%
15.2%
10
2.3
Invalid:
.%
12.%
.02%
%
123456789123.123
I tried:
^[0-9]{0,9}([.][0-9]{0,2})d[\%]{0,1}?$
But It does not work as I want.
I am using this regex string in one of my programs to validate email adresses: "^[a-z0-9._%+-]+@[a-z0-9.-]+.[a-z]{2,4}$". This works well for the most part, but I just found out that it doesn't catch an address like this ... "john.doe.@yahoo.com" ... where there's a "." right before the "@", which is invalid, so my program tries to send it & throws an exception. How to modify my regex string to catch this situation?
View 4 RepliesI was wondering how i can validate in my app if the user has entered a valid windowsusername and password i.e.:
View 3 RepliesI am using a Formview for Change Password funciton in my project. It works OK with update and validations.I am now trying to add code for Strong Password as follows:
Private Sub FormView1_ItemUpdating(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.FormViewUpdateEventArgs) Handles FormView1.ItemUpdating
Dim password As String = CType(FormView1.FindControl("PasswordTextBox"), TextBox).Text
Dim score As PasswordScore = PasswordAdvisor.CheckStrength(password)
[Code]...
In the class, the Match.Success always returns "False" and also, irrespective of the validity of the password entered, it gets updated in the database. Is there any way to control the Update function of Formview, so that the password is updated only if it is valid?
I'm trying to figure out a way to validate the user data entered:
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This is in MVC3, VB.net. I'm looking for an easy way to validate a users input data into the editorfor field.
I am having an issue where I am using regex.Replace to replace part of a string. The basic idea is that I want to capture the beginning of the string then replace the end of the string with a value from code. For an example pretend I have a string that says "Test Number " followed by number and I want to increment that number. I capture the "Test Number " but when I try to concatenate that capture with the new number it treats the capture ($1) as a literal and replaces the entire string with $1[new number].
[code]...
This will output "We are on Test Number 2", as expected. how I can use a variable in the replacement string portion of the Regex.Replace when including a captured group?
I want to take the text and some special characters between the xml tags.. My input file contains:
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now i want the Regex to take text and the special characters between the tags <line>,<inline>..
I'm creating a program in VB.NET to output multiple images. Some images will have the same file name. If there is multiple files with the same name I want to add "_1_" to the end of the file name. If the "_1_" file already exists I want to increment the 1 to be "_2_". If this file already exists I want to continue incrementing the number ultil it doesn't exist. So for example "filename", filename_1_", "filename_2_", etc. Here is the code that I have tried
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I've been working straight since yesterday trying to get this to work. I'm a noob to RegEx and I've tested out about 5 different RegEx "builders" but each of them require you to navigate through the options to build the Regex...each of them has failed when I try to use them.Is there an application out there free/paid where you select the line you want to grab and the RegEx is auto generated from that highlight rather than having to try to build the line of code? [code]
View 1 RepliesI'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.
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 RepliesHow 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
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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 Replieshow to save data (for example some text that user type [as password etc]) and save that password on same location where is application. After saving I want to have also Load option so we can load saved data.
View 7 RepliesI am making a password box with an if statement. I also want another form that I can change the password and if I close the password box, it will save the current password.
View 2 Repliesi have made a program that needs a password to activate it but i would like it to look for a text file in the same directory called "password.text" as it will alow me to change the password.
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I'm making a custom control suited for handling passwords. I have created a control that inherits from a text box and I have implemented a lot of things so far. But what i want to do now is create a system so that when a user types It will display his last character typed for a X amount of time.Is there a way to turn only selected characters into password characters and still be able to get the password text from the Text property ?
View 3 RepliesI'd like to write a license management based on a wcf services.
How can I ensure that the (end)-user/"hacker" can not replace our license management services with a corrupt server?
Our license server is hosted on our server in the internet. When the server send corrupt data to the client the complete license management concept is destroyed.
Scenario :
Viewmodel dienstViewModel contains a AdresViewModel
Public Class AdresViewModel
<Required(ErrorMessage:="Gelieve een straatnaam op te geven")>
<DisplayName("Straat:")>
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