login from read file.txt

[techker2]

hey guys 2 questions is there a way to make a login to read from file.txt?it is just a demo app..so no security for now. or can i read a file.txt and fill collectionbase??

[Dave Kreskowiak]

techker2 wrote:

make a login to read from file.txt

This makes no sense at all since you cannot make an actual "login" do anything. It's a process that authenticates user credentials, nothing else.

techker2 wrote:

can i read a file.txt and fill collectionbase

Whatever this is... You need to learn how to ask questions. For instance, start with CONTEXT. What is the environment you're talking about? What are the circumstances where you want to do this stuff? What kind of application are you talking about? ...? ...?

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Dave Kreskowiak

[techker2]

sorry in C# just need to have user input a nip to enter main form.(nip stored in file auth.txt as for the load part i was thinking it would be easyer to search in a collection base the a file.so load file and insert info in collectionbase..

[Richard Andrew x64]

techker2 wrote:

input a nip

What is a "nip?"

techker2 wrote:

search in a collection base

What is a "collection base?"

The difficult we do right away... ...the impossible takes slightly longer.

[techker2]

nip= 4 didgit number CollectionBase for information to be stored..

[Pete OHanlon]

Do you mean database, or are you talking about an in memory collection? And I think you mean PIN, not nip - PIN = Personal Identification Number.

[techker2]

sorry french.. memory collection sounds like it..

[Pete OHanlon]

Don't be sorry about what your native language is. French is a beautiful language, and is one of the cornerstones of modern English. Rejoice in your native speech. Glory in it.

[techker2]

thx. im still stock on this... i think i got it. [code] StreamWriter log; if (!File.Exists("auth.txt")) { log = new StreamWriter("auth.txt"); } else { log = File.AppendText("auth.txt"); } log.WriteLine(DateTime.Now); log.WriteLine(lines); log.WriteLine(); textBox1Message.AppendText(lines); log.Close(); [/code]

[Pete OHanlon]

As we don't know what format your file is, I'm going to have to make some assumptions here. The first assumption is that the file is organised with one pin per line. Assuming this is true, then you can use File.ReadAllLines to read the files into an array - from there, if I were you, I'd probably load these records into a HashSet for speed of record retrieval. Here, I have to assume that you know what a HashSet is, and how to work with it. Finally, write a simple method that accepts a PIN, and looks in this HashSet to see if the file PIN is present.

[Dave Kreskowiak]

Please tell me this is for a school assignment? Please tell me this is not a application that's going to be put into production? You really couldn't pick a more insecure method of storing passwords (pin's) if you tried.

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Dave Kreskowiak

[techker2]

lol ya..i need to make an ATM machine...lol i got it going.thx

[Dave Kreskowiak]

I thought those requirements sounded familiar, but I had to check because there are those idiots who think this is a viable method of securing a production application in an enterprise environment. :) Kind of explains all the corporate credit card hacks, doesn't it...

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Dave Kreskowiak

[techker2]

lol.. now im stock on a simple numeric keypad. do i need to make it as a separate form?

[Dave Kreskowiak]

It's "stuck", not "stock". You don't have to but it might be nice. I would probably do a numeric keypad as a custom control, but then again, I don't work on school projects any more.

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Dave Kreskowiak

[techker2]

Ha!lol ya looking it up.thx for the help

[roya irani]

public string connectionString = "Data Source=" + File.ReadAllText(Path.GetDirectoryName(Application.ExecutablePath) + "\\PCName.txt").ToString() + ";Integrated Security=SSPI;Initial Catalog=" + File.ReadAllText(Path.GetDirectoryName (Application.ExecutablePath) + "\\DBSName.txt"); use a this code in your Program,and make a notepad file in your one of the drive in your computer. just write your computer name in notpad the save it and close. :) if you don't have database, you don't write DBSName.txt in codesource.