I code on the side for a little extra cash. Up to now it has always been one off conversion programs. The problem is that I am being asked to generate a report program and there is a dealer acting as the go-between for the end user. I want to maintain control of this program. I don't want this dealer to be able to distribute it to all his customers (or worse sell it), but have no idea of the best way to do it. Since I do this on the side, I obviously cannot afford to purchase a third party utility.When I try to search, all I get are links to people asking what to do when an installation fails. Can anyone point me to a tutorial or article on how to do this without resorting to buying a utility?
I am using VB .Net to access the eBay API and store all completed orders in a database. This database is then fed into a proprietary shipping system, which can not handle an order number larger than 20 characters. eBay returns an order number like so 230407279314-680141236013 which is too long. The order number is always 12 numbers a hyphen and 12 more numbers. What I need to do, is turn this (the result can be alpha numerical) into a shorter, unique order key to store in my database alongside the true orderId (so that this can be referenced by the shipping software instead of the actual order number). The reason for the 20 character limit is the barcode algorithm used. Is there any way to achieve this in VB .Net 2010? This number can be anything unique, so long as it does not exist already (even a good uniqueid function would work, but I would have to query the database to make sure it isn't taken)
How generate the unique no. 1,2,3 and so on .... on button click of each new user ..
the code mentioned below is a readwrite coding in vb.net ...
but the problem is it generate the same id for different users on button click event... but i want the no. of times button clicked the new ids will be generated
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click Dim FILE_NAME As String = Server.MapPath("counts.vbi")
Unique constraint - these columns currently doesn't have unique values..?? I have created Unique Constraint with 3 columns. My code works perfectly but once - two users @ same time entered same data and somehow it saved in DB; after that incident. This UniqueConstraint gives me error - These columns currently doesn't have unique values. How can I check if user enters this kind of entry or how can I restrict the Entry?
Sub emailConfirm() Dim email As String = txtMail.Text Dim name As String = txtPrenom.Text + txtNom.Text[code]....
note:I want to send Link contains a unique identifier and verify the unique identifier in the login.aspx.I don't know when to do this...I found nothing interesting on the net ...
how unique is this ? will i ever get duplicates ? and will it ever change ?... i want some way of relating my software to the customer .... is there a system GUID?
Function GetCPUID() As String Dim sReturn As String = "" Try
I've published my application for installation via CD or DVD. I installed it on my machine and it worked fine. I have a couple of questions, I couldn't find the answer to in the GUI. First, when the application is installed, it immediately launches. Can I make something in the installation where a user can click a checkbox saying launch after install? If not, how can I disable the application from launching after the install. And secondly, the application is installed, a desktop shortcut is created, and the application is added to the programs on the start menu. How would I add an uninstall link in the program menu along with the icon to launch the application? Currently I have to go to the control panel add remove programs to remove the application.
I recently formatted my PC, re installed Windows 7 64 bit and Visual Basic 2010 Express.When trying to connect to a database I am getting the following error "he Microsoft.ace.oleb.12..0 provider is not registered on the local machine"..After Googling the error most point to suggesting compiling to 32 Bit.I cannot see how to tell VB 2010 to compile to 32 bit.
I am writing a installation program that will copy embedded MSI's to the local disk, install each one then delete the MSI's and I don't know how to get the MSI installation status so that my application knows when the installation is completed for each one.
i've just completed a vb application and i 'm asked to write installation notes + system requirments to install and the requirments needed to run this application.
I downloaded Vb express 2008 from Microsoft site. I am using WindowsXP The download was completed and when the setup starts the progressbar of .Net Framework 3.5 SP1 stops in half way and it is just stuck up with no further movement ahead even after 30 or 40 minutes time. I tried it several times but it just stucks up in half way.Because there are 5 or 6 components of vb express 2008 download and it installs only first component and when it reaches the second component of .Net Framework SP1 the progressbar just helds up in the half way.
Using the code below, I am determining if the computer has service pack 1 installed for office and windows. How do I then execute the SP1 .exe if it is not installed?
I am creating a small VB.Net (Framework 3.5, Visual Studio 2008) application, requirement is small.
I want to make an EXE and that should run without installation.
I am Ok if all the dependencies, like dlls, are present in ApplicationStartupPath().
The Application should be standalone without installation. Bcoz, I don't want to create a big scene to install a huge .Net Framework in client PC for just a small application, as I said the requirement is small.[code]...
How do i insert the images during an customize installation?
For example, when i was installing Skype, screenshots of Skype appeared during the installation. How would i make that during my installation, with images appeared and disappeared just like skype. I know i could use code to bring back and front, but that is not how i wanted it to be. I tried that code before, but doesnt look good enough.
I have finished my VB program and have been publishing it. I included all the necessary prerequisites and published it, and it worked fine. But then i tested it on some other computers, and while installing the prerequisite SQL server express, it will fail the installation.
When i installed it on computers with Windows 7, SQL did not require do restart and it worked fine. When i installed it on computers with Windows Vista and XP, SQL did require to restart and the installation will always fail.
I think i know whats causing it as well, while publishing it comes up with the warnings
"Item 'Microsoft.Net.Framework.3.5.SP1' could not be located in 'C:Program Files (x86)Microsoft SDKsWindowsv6.0ABootstrapper'. "
and also
'SQL Server 2008 Express Edition' could not find dependent item 'Microsoft.Net.Framework.3.5.SP1'.
I'm making a sign in/out program using mysql and visual basic and need a little help I have two tables event_in and event_out and under each table I have event_id, which automatically generates a number(starting from 1) for each row. I was wondering if it's possible to generate the numbers based on the users. So let's say User A comes and signin, 1 is generated into the event_id. Then User B comes and signs in. I want 1 generated for him too...so all User A's event_id will be 1,2,3... and each user's event_id for both the in and out table will also be the same.
With this I will be able to subtract each user's timestamp in event_out from that of event_in to get how long they were in. I believe that if I don't generate the numbers separately for each user, then let's say User A signs in (1 is generated for event_id in the event_in table) but does not sign out yet and then User B comes and signs in (he get 2 for the in) but then he signs out before User A does and he gets 1 for the out and user A gets 2 for the out. So now user and with my current query I will not be able to calculate the timestamp.
i would like to get the unique catlogs, so from this list i want to extract only 7190, 7192, and 7193. i have a script that puts it into a dropdownlist by using:
DropDownList1.DataSource = dv DropDownList1.DataBind()
I want to generate a unique ID in VB.NET that starts with ASXXXXX where XXXX represents a number. The number has to start in an orderly fashion. This ID will then be stored in a SQL Server express table.
I'm a non developer user of VB. I'm using a simple form to input data to a database. have some text boxes bound to data and use a Binding navigator. I want to be able to handle or catch the error when a non unique ID is added. I have tried to include an error handler in several places but the exception is generated anyway. For example I select to add a new record the change the id to a duplicate value and navigate to the previous record and get the error. I want to check or validate the value before it generates the error to avoid the program crashing if someone includes a duplicate id.
Is GUID really unique? I have a webservice that the client application connects to, which generates a GUID. I know GUID are generated using the mac adress of the NIC. Is the NIC in the webservice server used or the client NIC?
I have a database (using Sqlite) that has ID has a primary key with autoinc, that loads the values into a listbox control. If I loop through the database normally, adding the values of the database into my listbox, I can't get the ID by using SelectedIndex because the Index will not always be the same as the ID, and the ID will not always be the Index. :( This makes it painful when I want to query to delete the row, based on SelectedIndex.
I want to delete the row by ID, but I have no way of getting that ID with the loop I use Is there some hidden field type attribute I can use?
Primary key must be unique....while inserting data into the database,i need to check whether the data already exist in the primary key column or not.......If not then only data will be inserted in the database else a msgbox will be displayed and data will not get inserted in the database....
