Adding Subclassed Password Recovery Control To Page Causes "An Entry With The Same Key Already Exists." Error?
May 6, 2011
I am trying to subclass the password recovery control in asp.net (4) so that I can override the behaviour of the OnVerifyingUser event but I'm having trouble adding my subclassed password recovery control into the page. I tried creating an asp:placeholder control and adding a new instance of my subclassed control to it but I just get an error that says "An entry with the same key already exists". I've tried doing this in the page_init and page_load methods but get the same error.
Here's an example of my subclass
Partial Class MyPasswordReminder
Inherits PasswordRecovery
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:
In my application, the password is encrypted and if the user forgets the password, there is no way to recover it. Now we are cancelling that user account and creating a new one. Now I want a proper method to recover the password. The login is done using the Asp.net configuration tool. How can I recover my password using this? Is there any alternative option for this? How can I decrypt my password in the database?
I'm using the ASP.NET Membership provider and using the Password Recovery control to reset the user password if they forget it. On the whole it all works fine, but with one catch when it comes to validation.I have expanded the PasswordRecovery control out to use the template feature to customise the appearance, which is all fine. I have set the user lookup error handler using:
in the opening tag and if I load up the page, type in some junk name and click submit this fires as expected, in all browsers. The snippet of VB code makes an error div visible and sets some text.However, if upon loading the page for the first time I type a duff name into the username box and hit the enter key to submit the form, in Internet Explorer (version 8), the UserLookupError event fails to trigger. It triggers just fine in Chrome or Firefox, just not in IE. I know it's not a focus issue on the form, as I can see the form is being submitted.If I click the submit button first, then following that hit the enter key it does fire, it's just that first time it doesn't, and only in IE.Also to add that if I set breakpoints in the VB code to check to see if the page is being submitted, I can see the Page_Load event fire when I hit the enter key, but not the sub PasswordRecovery1_UserLookupError.
I'm working on a website using VB (ASP.NET)I want to implement a password recovery code without using the controls in asp.net I didn't use ASP.Net Membership for logging in, I have MSSQL database with USER table? when the user forget his/her password, he/she enters the email then press a button to submit, then I have to find this email in the user table, retrieve the user name and password, generate new a random password, update the password with the new generated one, and finally send an email to the user with the username and the new generated password.
I am trying to make a program that recovers lost passwords from ZIP files. I know what to do but what i don't know is how to make sure that the file is a ZIP file, and using that file a looking for the password.
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?
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The trouble is, I can't find a safe way to inject this div into the page. A usercontrol doesn't have a preinit event, so I can't do it there, and calling Page.Form.Controls.Add(...) in Init, Load or PreRender causes the standard exception "The control collection cannot be modified during DataBind, Init, Load, PreRender or Unload phases."
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How are you supposed to add controls to the pages control collection from inside a user control?
Is there a faster/easier and more efficient way of checking if an entry exists in SQL then this:
Private Function CustomerCheck() Dim connString As String = ("Data Source=.SQLEXPRESS;Initial Catalog=BFS;Integrated Security=True;Pooling=True;") Dim cmdText As String = "(SELECT * FROM Customer WHERE Customer=" + CustomerTextBox.Text.ToString + ")"[code]......
It's System.ArgumentException: An entry with the same key already exists. error.Here is the whole stack trace:An entry with the same key already exists. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.Exception Details: System.ArgumentException: An entry with the same key already exists.
I have a VB.NET WinForms application. While adding a new data source, it is giving "An item with the same already been added" on the Add Data Source wizard form.
The application does not contains any existing data source.
What could possibly be causing this error, and how might I go about resolving it?
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Protected Sub GotMONum_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles GotMO.Click Dim da As New SqlDataAdapter
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If InputBox("Please Enter Administration Password." _ , "Password Entry", "") = "trafficlight" Then 'Close current frmMDIChild and set the new form
[code]....
i want the input box to mask the characters been entered i know i could create my own input box and call that but is there a way to use the Default inputbox to mask the character input maybe watch the key presses saving input to a variable and displaying the asterix in its place? or am i overthinking it and there is a very easy solution like an inputbox that already masks input by a user.
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[Code]...
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