i need to create a Unique hardware ID So I wrote this code with vb.net 2010 ( and .net framework 2)But when I run this Code in two different user on a computer (windows seven) , Two different output returns?
View 11 RepliesI 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)
View 2 RepliesHow to create a non-unique index in sqlite?I'm using vb.net to create the tables.
View 1 RepliesI am trying to create an array of 5 random unique numbers between 1 and 30. I've been trying for a while and have had no luck.
View 9 RepliesFor my database I need to create unique numbers and insert them in the column "ID". Can I add them via a SQL query? The numbers would simply be 0001 to whatever.I'm using the "Show Table Data" gui.
View 7 RepliesI want to generate random datasets with regex.
Therefore I have an expression like [a-z]{10}.I want to generate maybe 200.000 data - maybe more (it should be generic), every data should be unique.
How can i implement that?at the moment i have a algorithm, that generates a random string, then search in an array that stores the values, if the string is already in there it repeats that process. Otherwise it stores the string in the array.
I'm using the datagridview. This is the sample data:
[Code]....
How do I parse through the grid to rename the duplicate values in a particular column (in this example it's the l_name field) into such a format?
[Code]....
How can I create a list (of my custom structure) to hold only unique items? This list should be created from another list.[code]...
View 5 RepliesBasically i have a list(of TransRecord)
vb Public Class TransRecord
Public TableName As String
Public PKs As String
[CODE]...
And want to create a linq filter to select only unique records for TableName + PKs (group by) ... but want it to select only the record with the highest ID for this group by.
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")
[Code].....
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?
View 2 RepliesThis my working method to send a email
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 ...
In my VB project I need to create a unique string of alphanumeric characters 4 in length from a numeric string 8 in length.This numeric string will always be 8 in length and could range from 00000001 through to 99999999
View 12 Replieshow 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
[code]....
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.
[Code]...
I was wondering if there would be anything else I could use in my Hardware ID protection that would make it much more unique.
I am currently using Processor ID Volume ID MAC Address Graphics Card Name
<data>
<food>
<id>1</id>
<name>asparagus</name>
[Code]....
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()
but i need it to get only the unique values.
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.
View 8 RepliesI'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.
View 5 RepliesIs there any way to get a system specific ID in vb.net?
View 2 RepliesIs 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?
View 1 RepliesI 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....
View 13 RepliesI'm trying to return a unique ID from the URL with changes every time you login.
The URL look like this: Quote:
[URL]
949285 is the ID
I tried with this regex:
PHP
Dim sPattern As String = "q=(*.?)&p"
Dim src As String
[Code].....
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?
View 4 Repliesprovide the code to generate a unique system id for a machine which is unchangeable even we format our HDD.
View 1 Repliesregarding a UNIQUE value that needs to change.Within my XML for each record i need a Unique Value to be entered. What i have so far is to use the Date and time to give me a unique value when i click my button. But because i click the button once, all records in the XML have the sme value entered. I need to be able to Add 1 to the Unique value each time to make them different? E.g I click the button now and the unique value is "CDS61510" then for each Unique value after i want to add 1 to it, "CDS61511", "CDS61512" etc
<ROOT>
<RECORD VALUE="CDS61510">
......
</RECORD>
[code]....
I need to identify each computer with different identification, so which should I use? Is it motherboard serial number or MAC address?
View 9 RepliesAll my users can click on an image button accept one.When she hovers over the imagee it does not provide info on the status bar as if it doesn't even recognize there is a image button there.ALL the other users roll over it and the info comes up on the status bar and they can click the button and it works.What should I be looking for that one user can not access this button.There is not code specific that locks her out and the ahref links on her page work but not the image button.
View 4 RepliesI want to add only unique items into the list box.I am using lstListBox.FindStringExact(strKey) it works perfectly. But I have large number of strings and it is taking too much time. It also make the CPU uses 100%.
View 5 Replies