Quick easy Question

Hi, For security for my program i get the HD #. After i get that i need to display it in a text box. I know how to do every thing ecept how to make the variable(HD#) appear in the text box with out pressing a buttun. As u can see the HD# is added to the text box with the event of a button click but i need to know how to put it all in into one thing without pressing a button.(Add the HD# to the text box with out pressing a button) Thanks

VB Code:

Function GetSerialNumber(ByRef strDrive As String) As Integer
        Dim SerialNum As Integer
        Dim Res As Integer
        Dim Temp1 As String
        Dim Temp2 As String
        '
        Temp1 = New String(Chr(0), 255)
        Temp2 = New String(Chr(0), 255)
        Res = GetVolumeInformation(strDrive, Temp1, Len(Temp1), SerialNum, 0, 0, Temp2, Len(Temp2))
        GetSerialNumber = SerialNum 
 
    End Function
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
 
        hi = "" & GetSerialNumber("C:\")
        
        TextBox2.Text = (hi)
 
    End Sub

VB Code:

Function GetSerialNumber(ByRef strDrive As String) As Integer
        Dim SerialNum As Integer
        Dim Res As Integer
        Dim Temp1 As String
        Dim Temp2 As String
        '
        Temp1 = New String(Chr(0), 255)
        Temp2 = New String(Chr(0), 255)
        Res = GetVolumeInformation(strDrive, Temp1, Len(Temp1), SerialNum, 0, 0, Temp2, Len(Temp2))
        GetSerialNumber = SerialNum 
 
    End Function
 
    Private Sub Form_Load(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles MyBase.Load
 
        hi = "" & GetSerialNumber("C:\")
        
        TextBox2.Text = (hi)
 
    End Sub

Ok thank you that worked!! Now one more question in this string how do i make the form(form3) exit after the correct password is entered. so as form1 is loaded i want form 3 to exit. Thanks

VB Code:

If TextBox1.Text = 2 Then frmform1.Show()

Quote:

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Originally posted by VBGangsta
Ok thank you that worked!! Now one more question in this string how do i make the form(form3) exit after the correct password is entered. so as form1 is loaded i want form 3 to exit. Thanks

VB Code:

If TextBox1.Text = 2 Then frmform1.Show()

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form.hide or form.close

where do i do put it?

Quote:

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Originally posted by VBGangsta
where do i do put it?

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........

where do u put form.close in that string??

Quote:

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Originally posted by VBGangsta
where do u put form.close in that string??

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form.close() is a function, you run it and it closes the forum.

Dude.....just dude....

yeah but i get an error. An unhandled exception of type 'System.NullReferenceException

Quote:

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Originally posted by VBGangsta
yeah but i get an error. An unhandled exception of type 'System.NullReferenceException

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........

vagueness is at an all time high today...

Quote:

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Originally posted by VBGangsta
Ok thank you that worked!! Now one more question in this string how do i make the form(form3) exit after the correct password is entered. so as form1 is loaded i want form 3 to exit. Thanks

VB Code:

If TextBox1.Text = 2 Then frmform1.Show()

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do you see that code? well when the number 2 is entered(the correct password) i want my main form (form1) to load in which it does fine but i dont want the login form (form3) to stay open if the password is corect. So where do i put the form.close function. Is that enough detail???

Quote:

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Originally posted by VBGangsta
do you see that code? well when the number 2 is entered(the correct password) i want my main form (form1) to load in which it does fine but i dont want the login form (form3) to stay open if the password is corect. So where do i put the form.close function. Is that enough detail???

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Dude...... stop programming now.... jesus...

VB Code:

If TextBox1.Text = 2 Then 
frmform1.Show()
form3.close()
end if

This is simple stuff. Even if you got no clue what the syntax is, it is extremely easy to figure out where you would actually put it

Maybe your the one who should stop programming because thats wrong.

Don't let him bother you VbGangsta keep at it.

Is this code being executed inside of the login form (form3)? If so then you can use:

VB Code:

If TextBox1.Text = "2" Then 
     Dim frm As New frmform1 'create a new instance of the form
     frm.Show() 'show it
     Me.close() 'close the form that is running this code (form3)
End If

This also depends on if frmform1 is the name of the form class or the variable that you previously made.

Thanks Edneeis. That code is very close, after i type in the password "2" it closes form3 (the loging form) but either it is also closing the mainform(form1) or it is not even loading it because as soon as i press OK to the password form1 doesnt open. But form3 does close. Thanks Again!!:wave:

The problem is probably frmform1 isn't the name of your form. In design view, Click on the form that is supposed to show up, and look at the "(Name)" property. Use what ever is in the field to replace "frmform1" in the code Edneeis gave you.

Do you have the application set to start with form3 or the login form? If so then that is the trouble. The first form shown cares the thread for the whole application and can not be closed without closing the whole application. There are several ways around this some are: hiding instead of closing the form3, starting from a module instead of form (I would use that one)...

If you do a search on this forum you will see what other people did to resolve this (If you are starting the app with form3).

Try here:
http://www.vbforums.com/showthread.p...hreadid=209896

Quote:

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Originally posted by VBGangsta
Maybe your the one who should stop programming because thats wrong.

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dumbass

Here's a small program I wipped up. It should do what you are tyring to do. Hope it helps.

I had this exact same question when I started out in .NET, so ignore kasracer, you are doing fine.

Quote:

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Originally posted by kasracer
dumbass

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Kasracer!
Did you come into this World knowing it all?
If so “our deepest apologies”

Quote:

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Originally posted by Rally
Kasracer!
Did you come into this World knowing it all?
If so “our deepest apologies”

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No, but he is asking where to put stuff, that should be common sence.

You want a message box to come up when the user hits a button? Use the on click event. hell just double click the button and add code.

It isn't difficult at all.

Also, not changing the form name is pretty damn stupid, I mean come on. If he knows enough to name a form, he should be able to put 2 and 2 together when VB says form3 doesn't exist.

This is a forum, people come here for help, so why are you razing him for doing just that? Is that how you pump yourself up by putting others down? Are you a big man now that you have given someone who is just starting out a hard time about what you deem they should already know or should be common sense? Who made you the judge of all things? The declarer of what is and isn't common sense? If you don't like his question then don't answer it. And on top of it all your're code didn't work either so how much common sense do you have?

Quote:

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Originally posted by Edneeis
This is a forum, people come here for help, so why are you razing him for doing just that? Is that how you pump yourself up by putting others down? Are you a big man now that you have given someone who is just starting out a hard time about what you deem they should already know or should be common sense? Who made you the judge of all things? The declarer of what is and isn't common sense? If you don't like his question then don't answer it. And on top of it all your're code didn't work either so how much common sense do you have?

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Remember, there are no stupid questions, just stupid people.

It didn't work because his form wasn't named form3 which he said.

Now why whould you get that idea?? Form3 is the log in form which loads fine. Form 1 is the one that doesnt load. And its because noone told me about useing a module.

And also i have kept my mouth shut about you kasracer. I was just grateful that someone was spending time trying to help me out. I looked past your sarcasim and comments but now you are justing being plain mean. I dont care how stupid you think my question is, you never insult people.

Quote:

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Originally posted by VBGangsta
And also i have kept my mouth shut about you kasracer. I was just grateful that someone was spending time trying to help me out. I looked past your sarcasim and comments but now you are justing being plain mean. I dont care how stupid you think my question is, you never insult people.

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It's the internet, it's very common to make fun of people.

Don't get your panties in a wad

Its also common to run into @$$holes even in a learning environment as i see

OK Everyone i just want to thank you for all of your time and help, just to let you know i go it to work useing the module. Thanks Again!!!!!!:D

Quote:

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Originally posted by VBGangsta
OK Everyone i just want to thank you for all of your time and help, just to let you know i go it to work useing the module. Thanks Again!!!!!!:D

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No Problem

http://www.vbforums.com/http://www.vbforums.com/http://www.vbforums.com/http://www.vbforums.com/http://www.vbforums.com/http://www.vbforums.com/

Glad to be of assistance. On behalf of nice guys everywhere, I apologize for the local riff-raff, whoever that might be... :D

One last thing..Everything is working great accpet when I X out the login form it loads the main form making the login form pointless. How do I remove the X out button?

Quote:

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Originally posted by The Phoenix
Glad to be of assistance. On behalf of nice guys everywhere, I apologize for the local riff-raff, whoever that might be... :D

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Well said :D

Quote:

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Originally posted by DevGrp
Well said :D

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Thank you.

To remove the "X" button, click on the form in design view, and set the "Control Box" Property to "False". That will remove all control buttons on the top of the form.

Ok thanks to that worked, still one problem, if i use ctrl alt delete and kil the login it will load the main form. anyone know how to stop this?

Although, upon further reflection, I would do this instead: Use "Me.Hide" On the click event of the login form button, and call the next form from there.

If you just remove the "X" button, and someone were to accidentally open the program, they couldn't close it w/o knowing the password, sine there would only be an "X" button on the main form.

I've uploaded a new version of my little example program to show you what I mean.

<EDIT> Yeah, my fault. The module-thing I showed you earlier wasn't the best way t do that. I would highly recommend that you use the method in this program instead. It will solve both problems. Sorry for the inconvinience.

Thank you so much The Phoenix. You have helped me so much. Its really nice of you to write that program it really helped me understand it!!:wave: I know I am pushing it with the questions but I have one last thing to do. I need to have so that the custumer only has to put in his password once which is the forst time the program is executed and also only if the password is correct(the first time) . Thanks

Hey, no preblem. Like I said, this is the first question I ever asked when I started, so it's only fair that I help answer it.

Give me a few minuites, I have a program that does exactly what you want. I'll comment it more to help you see what it does, and upload it.

ok thank you:bigyello:

Okay, here it is. Sorry it took so long, it gave me trouble there for a minute. :D

I hope it helps. I tried to remove most of the things that you wouldn't need, it was a fairly large program.(By my standards at least.) Anyway, look at the comments, and the code. It involves writing to and reading from a text file, but I think you can figure it out.

The only code you need to see in the main form is at the very bottom, all the rest is in the module, and the login form(frmName).

If you have any questions, fire away, my code is kinda strange sometimes. (My comments are worse sometimes. :D )

I dont see base class events in the left drop down, and also do all the reamarks apply to me?

Go to the code for one of the forms. You can't be in the code for the module, since modules don't have Base Class Events.

<EDIT> Actually, go into the main form code, since that's the one you want to add the thing to.

And yes, almost all the remarks are to you. I'm terrible about commenting just for myself. Anything that uses the word "You" is directed at you, and most of the other stuff.

<EDIT AGAIN> Although, in the main form you only need to worry about the very last line of code, and the accompanying comments, everything else in that form is for me.

Nevermind I now understand, Do all the remarks apply to me?

ok, this seems pretty complex

sry posted by mistake

It is a little convoluted(As my VB teacher would say) isn't it. I would have thought that there would be an easier way, but I havent found one. Of course, I'm somewhat of a newbie myself. Probably in ten minutes some pro will see this thread and say: "Igonre that idoiot named Phoenix, Here's a much easier way!" And proceed to show you something that takes ten seconds. :D

You should have seen me when my VB book told me to click on "Base Class Events", I swear, I looked for forty-five minutes, then gave up and asked the teacher, lol.

lol, as long as it works its good for me. I do the same thing i look though my books for hours looking for answers to stupid questions i have but never find them, your lucky to have a teacher i wish i had one

I dont see any editing that needs to be down in the module so i left it. But Explict things made errors somewhere in the code do I removed it9Msybe is y its not working). and I took at the part where if the line is blank. I get no errors but its like i didnt do anything. the loging still comes up even after i put in the password.

I did everything u said. Do u want to see my project?? It might be easier if u see what I am doing.

I'm not sure what Phoenix gave you but here is how I'd do it.

Lol!!

See!! Didn't I tell you?! Ten-second solution right there. No lousy text files, no stupid two pages of code, just simple perfect working code. He was nice about, but it's exactly what I said. :D

Nice, Edeenis. That is about fifteen times more efficeint that my code, I'll have to keep that method in mind for any later use. Although, in my defense, my program needs a lot of the functionality that using text files gives it, like you need to select which user you are on the second time you login, etc. My code isn't totally useless. :p

Sorry for sending you on a pursual of an untamed ornitoid, VBGangsta. Listen to the pros next time, not the newbies. :D

but his keeps making the login form show up even after it is executed once.

Quote:

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Originally posted by The Phoenix
Lol!!

See!! Didn't I tell you?! Ten-second solution right there. No lousy text files, no stupid two pages of code, just simple perfect working code. He was nice about, but it's exactly what I said. :D

Nice, Edeenis. That is about fifteen times more efficeint that my code, I'll have to keep that method in mind for any later use. Although, in my defense, my program needs a lot of the functionality that using text files gives it, like you need to select which user you are on the second time you login, etc. My code isn't totally useless. :p

Sorry for sending you on a pursual of an untamed ornitoid, VBGangsta. Listen to the pros next time, not the newbies. :D

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I'm sure your code was just as good if not better, its just with coding there are almost always different ways of doing the samething.

Edneeis, does yours save the login info so that the login form only shows up the first time the file is executed?

No, was it suppose to? Is this a login form or more like a registration form? I would use an app.config file to persist the login.

yes it is a registraion, it displays a number in one text box(HD# with some mathematical things done to it. And the next text box is empty. so they give me the number that is dispalyed then i reverse the math and give them that number which they enter in the empty text box. then they press a button and if they match it loads the main form. But i dont want the login form to load after the first time the reigitration is entered correctly. Thank you

Here is an example with that added. Although if you run it from the IDE it will keep resetting to a new execution but it will run fine from the exe itself.

wow, nice job. I think i almost got it but what does "keycode" mean in ur program. this is how I changed this part of the script but i dont know what keycode is supposed to do.

VB Code:

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
 
        pintpassword = TextBox1.Text
        If pintpassword = (hi3) Then
            Dim aps As New AppSettings
            aps.SetValue("KeyCode", TextBox1.Text)
 
            Me.Hide()
            Dim Newform1 As New Form1
            Newform1.ShowDialog()
 
        Else : MsgBox("Registration Code is Incorrect.  You need to purchase one from [url]www.eGamingprograms.com[/url]", MsgBoxStyle.Critical)
 
        End If
 
 
    End Sub
    Public Shared Function IsRegistered() As Boolean
        Dim aps As New AppSettings
        If aps.GetValue("keycode").ToString = "2" Then
            Return True
        Else
            Dim frm As New Form3
            If frm.ShowDialog = Windows.Forms.DialogResult.OK Then Return True
        End If
 
    End Function

Keycode is the name in the name-value pair that is stored in the app.config file.

Also whats this part:

Me.Hide()
Dim Newform1 As New Form1
Newform1.ShowDialog()


That should be handled in the Sub Main in the module.

yeah i forgot to take thant out. Do i have to do anything to the XML? And i put in all the code but it still performs as if i did nothing. the login keeps coming up, I must have missed something.