I have an application where they can use it for free for 30 days then after that they'll need to register it in which I figure using a product key would be something familiar for people, problem is I don't really know where to begin creating a keygenerator that would generate the keys for my app, the other thing would be upon registering in the app it would need to validate the key before accepting it.
View 1 RepliesI have an application where they can use it for free for 30 days then after that they'll need to register it in which I figure using a product key would be something familiar for people, problem is I don't really know where to begin creating a keygenerator that would generate the keys for my app, the other thing would be upon registering in the app it would need to validate the key before accepting it.
View 4 RepliesI am a PC repair and networking technician in Bellingham, WA. I have been given a task regarding CD/Product keys and developing a small stand alone program that will scan and pull customer's product keys prior to reloading their OS.
Much like this one:(url)
im trying to make something to protect my application a simple serial key the only thing i can think of is if textbox1.text = ("key") then blah blah blah you get it. what i really want is something that will allow me to add and remove keys without having to mod the application, something that would check a site like
View 22 RepliesI have been programming an activation type of security protection for my software but I ran into problems when I try to generate an alphanumeric key with conditions. I cant seem to be able to make the keys to be valid with the condition. Basically I can get the 25 keys but all of them seem to be returning 1 (ones) instead of 0(zero which what i want.
Code:
generate the keys
Public Function GenerateCode() As Object
Dim IntRnd As Object
Dim IntStep As Object
Dim StrName As Object
[Code] .....
The damn thing keeps returning 1 instead of 0. I do know I can simply change to 1 and be off the issue. but if is that easy to generate 1 then isn't it easy just to break it. The whole thing hangs when I generate the code? If I loop it, its able to get a 0 but I cant take the key that's in the loop??
Right now i have a form in the VB where there are 2 combobox in it. user can choose from a range of products that comes together with some description and these are to be stored in a database table.. when i retrieve these data from another form in VB, i'm only able to retrieve the first product and it repeat e same product in my second textbox.
View 6 RepliesI have 2 datagrids. One to show Product information and another for Product purchase details entry. Both share the same dataset. The dataset (ds) is filled up with columns from 2 table
ProductMstrTbl : ProductID, ProductName..
ProductDetailsTbl: ProductID, PurchaseDate, Amt, BalanceQty..
DataSet(ds) : ProductID, ProductName, PurchaseDate, Amt, BalanceQty.
The problem is that: Showing from dataset or entering new records into the dataset is no problem, but am not able to save the modified dataset into DataBase. SqlCommandBuilder failed to generate the corresponding INSERT, UPDATE command as the dataset has multiple base tables.
I am looking for a free utility or way to protect my software by requiring a Product ID (Which will be created when a customer requests a paid license) to use the application after a demo version. Like most shareware apps.
View 2 RepliesI have a problem detecting whether one of the arrow keys is pressed, all the other keys seem to be detected apart from the arrow keys??? I have set key preview to True........ It detects the arrrow keys BUT ONLY if I have NO other controls on the form??? example..
Me.Text = e.keycode
It works, but then if I add a button for example, it stops.
I am writing below code for validating compulsary field account no. in form.User's requirement is set focus back on field when error comes :
If txtAccountNo = "" Then
MessageBox.Show("Account no filed can't be left empty")
txtAccountNo.SetFocus
Exit Sub
End If
It's working properly. But suppose user don't want to fill form and exiting from application.Message box keep on appearing till user enters account no.
just wondering how i could give my auto typer hot keys, for example they press f1 to start the typer f2 to stop it.
[Code]...
I'm trying to create a shortcut which expands or collapses my treeview using the ctrl+alt+up-arrow or ctrl+alt+down-arrow:
If Keys.ControlKey And e.KeyCode = Keys.Alt And e.KeyCode = Keys.Down Then
mytreeview.ExpandAll()
End If
[code].....
How could I loop through a list of the keys that are available in the 'Keys' enumeration? It seems like it should be something easy to do, but I'm not having any luck finding a collection that I can loop through.
View 6 RepliesSo I found this little morpg. The game is fun but really repetitive. I would like to simplify some of the tasks in the game. I do not know how to start this project. How can I recored arrow keys and then tell the computer to enter the arrow keys? One of the objectives in the game is to run around a farm 2x and scare away any wolfs. So the commands would be "arrow key up" for 30sec and then "arrow key right" for 4 sec and repeat. I have worked with robots in real life for some time. We would fill arrays with such instructions. One of the most fun things to program! But I have no idea how to do this in VB.
View 12 RepliesI need to capture the left and right arrow keys in Form1.KeyDown event so I can use them as hot keys. Instead they seem to be assigned to tab order (move focus to previous/next control) and the KeyDown event never gets called. How can I remove the arrow keys from tab order and use them for my hot keys instead?
View 2 RepliesI cant run my VB 2008 . it need register key
View 1 RepliesWhat is the product key of Visual Basic .net 2008?
View 2 RepliesI have a product table on datagridview and I would like to add checkbox to each product so that I can mass delete them instead of deleting them one by one.
View 1 Replieshow to get vb6 license nowadays?does the visual studio pro 2010have a downgrade path to vb6?
View 8 RepliesHow to put a product key for my Project?
View 5 RepliesI have a strongly typed DataTable in my app which is generated with a couple of SQL joins. I use it to display data in a human readable way.[code]....
View 1 RepliesThe GUI below shows the same product I inputted. If I inputted the same product and a new Quantity inputted, it will add to the current Quantity inputted. Same goes to the Total Amount will change.
View 12 RepliesI am a DCOM/Standalone Client-Server programmer who is now moving to eCommerce. I am building my first complete website for my wifes company and I have a design question for you gurus out there.
I looked at alternatives for shopping cart/product display and none of them meet my needs (e.g. ProStores). I wish to know which type of database you would use to have Many Products - Multiple Images per Product - possibly Multiple Vendors per product. I have begun a RDB using access as a prototype and I feel there was no faster method than inserting every product manually. Is there an alternative? And would you use a frame to display this data?
Would you store the images to the DB or a file reference on the host. I have begun with a file reference and truncated the path to only relate to where the file will reside on the host.
i have a inventory software in visual basic and sql server. there i have product info, product receive and product sales option. there i need to add a new feature in product. every pcs of product will have barcode which will be generated by my software at the time of receiving the product. and at the time of selling the product, the user will only scan the barcode by the device.
View 1 RepliesI have recently completed a project using VB.NET 2008 express edition. Now I have to create a Product Key Generator for which I have no clue how that works. I wanna do it in such a way that the product can't run without the valid key and the key can only be used for one copy of the product. Also if possible how do we generate a Unique Product ID?
View 3 RepliesI have a product database....in which I have productid,prodname,inventoryvalue,reordervalueI have to design a email system that as soon as the product reaches the reorder level it shud generate an email....but the condition is there will be many products in the database....and on one button click it should send only one email but with all product names those reached the reorder level.... tried the below thing but completely a waste...
Private Sub btnEmail_Click(sender As System.Object, e As System.EventArgs) Handles btnEmail.Click
'Open Connection
[code].....
How do find windows xp product key with wmi in vb.net?
View 3 RepliesI need to get the product of the 2 columns in the same row but my problem is the values of my datagridview come from database and the number for rows is not fixed.
View 2 RepliesI want to make a product key for my software which should be Machine Specific , And With a Evaluation Period of x Days.
[Code]...
I am wondering how to make a product key as a license key for my VB.Net windows form application? Because at the end of the day, i would have to package it as a exe file and i would like to include in a license key for the user.
And also may i know how to package the whole project as a exe file such that after the user excute the installer, everything will run. like how you install windows xp like that.