Getting Unique Sytem ID?
Nov 26, 2009Is there any way to get a system specific ID in vb.net?
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Need To Do Ebook Management Sytem
Mar 10, 2011i want to to create a ebook management system in VB. This is for my university purposes, i dont have any idea about VB.net, so kindly i ask you to give any tutorial link. And these all should be in the project. The main thing is i want to know simple ways to work with databases. So kindly give some links for these, or even the project source code.
View 1 RepliesCreate A Fixed-length Unique String From Another Unique Numerical Value That Is Too Long?
Feb 13, 2012I 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 Replies[2008] Datagridview - Duplicate Cell Values [non-unique To Unique By Appending]
Jan 10, 2009I'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]....
Culture Info - Get The Sytem Date Display?
Aug 6, 2010I'm learning about the cultureinfo and doing ok but there is one thing I can't work out.I'd like to know how to find out the display settings of the date for the user pc.For example, I have an American bought laptop using the us culture so the date will be MM/dd/YY but I have changed the date setting to read dd/MM7YY. So that means I haven't actually changed the inbuilt cultureinfo, I've just "altered" a setting and it's that setting I want to access. When my project starts I have a label that I want to read as dd/MM/YY.With another pc it might be different - the culture might be uk but the date setting might be changed MM/dd/YY so I want the label to read MM/dd/YY etc etc etc.If the cultureinfo hasn't been changed then I want the label to read whatever the date is set to etc.
View 1 Replies[2005] Accessing Sytem Tray Icons?
Jan 8, 2009"Getting a list of system tray icons/programs has been a thorn in my side for the past year can get the list as long as explorer is running, but the second explorer is closed, the list will not populate. I'm frustrated beyond belief that I can't find the proper API calls to get the information. If anyone knows how to do this, PLEASE share it here!! I know it is possible, because other shells do it. -Ray"
View 9 RepliesAsp.net - Unique Number For Unique Visitor On Button Click?
Mar 21, 2011How 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].....
Daily Time Record Sytem Faculty And Staff In Php
Mar 15, 2012How to create dailytimerecord system in php please please help me...our defense will be on Friday march,16...
View 1 RepliesError System.object Cant Be Converted To Sytem.String
Aug 8, 2010i have problem LINQ query.In above,i got error system.object cant be converted to Sytem.String. What can be the problem? if i use string() instead of ArrayList, it doesn't raise error. But in String(), i should add items manually [code]
View 3 RepliesType 'Sytem.Windows.Forms.TreeViewCollection' Has No Constructors
Oct 9, 2008I just wanted to try something I had in mind,
Code:
Dim mTreeNodeCollection As TreeNodeCollection
mTreeNodeCollection.Add(New TreeNode("ddsf"))
above produces a 'System.NullReferenceException was unhandled' which is fine.
So I thought dam I forgot to initialise it!!
Code:
Dim mTreeNodeCollection As New TreeNodeCollection
mTreeNodeCollection.Add(New TreeNode("ddsf"))
Now it does not run but i get
Quote:
Type 'Sytem.Windows.Forms.TreeViewCollection' has no constructors
so how the hell I'm I going to get it to work?? can I only Add to a TreeNode collection , a TreeView?
Unique Constraint - Columns Currently Not Have Unique Values?
May 8, 2011Unique 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 RepliesSend Link Contains A Unique Identifier And Verify The Unique Identifier In The Login.aspx?
Jan 6, 2012This 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 ...
How Unique Is The CPU Id
Mar 2, 2010how 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]....
.net - Unique ID For Mysql?
Nov 11, 2011I'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]...
.net Unique Hardware ID?
Jun 8, 2010I 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
Asp.net - How To Get Unique Elements
Jun 12, 2009<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.
Generate A Unique ID?
May 12, 2006I 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 RepliesGetting Unique Key Validation?
Jun 21, 2009I'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 A GUID Really Unique
Jan 8, 2010Is 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 RepliesLoop With Unique ID?
Feb 10, 2010I 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?
Aug 5, 2009Primary 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 RepliesReturn Unique ID From The URL?
Mar 2, 2009I'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].....
Unique Key For Each Installation?
Mar 5, 2009I 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 RepliesUnique System Id In VB 6?
Oct 5, 2009provide the code to generate a unique system id for a machine which is unchangeable even we format our HDD.
View 1 RepliesUnique Value For Each Record?
Jun 9, 2009regarding 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]....
What Is The Most Unique ID For Hardware
May 19, 2009I need to identify each computer with different identification, so which should I use? Is it motherboard serial number or MAC address?
View 9 RepliesWhat Is Unique To One Person That I Should Be Looking For?
Aug 12, 2010All 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 RepliesAdd The Unique String Into The Listbox?
Apr 16, 2010I 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 RepliesC# - Locally Unique Identifier?
Aug 14, 2010Question: When you have a .NET GUID for inserting in a database, it's structure is like this:
60 bits of timestamp,
48 bits of computer identifier,
14 bits of uniquifier, and
6 bits are fixed,
128 bits total Now I have problem with a GUID, because it's a 128 bit number, and some of the DBs I'm using only support 64 bit numbers. Now I don't want to solve the dilemma by using an autoincrement bigint value, since I want to be able to do offline replication.
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Collection Of Objects With A Unique Key
Jan 25, 2011i've researched and written a generic class (all my objects are the same structure) and i'm was just working on the collection using a hash table but i've just read a comment within (url...) in this forum...that we shouldn't use hashtables at all with vs2008.i actually need and object collection that contains other object collections within them.the application i'm trying to write is relatively simple (but i'm new to vb.net)it keeps track of the time for weight lifting training/workouts.a workout consists of 'say' a bench press, military press, curls, dead lift, etc within the "bench" you have 1,2, or 3 sets (how many times you do "the bench", within a set you have 1,2,3 or 4 lifters, each lifter does reps.then it starts over with military press..i guess i could base it on a treeview type structure (with parent child type relationships) but i usually think in terms of collections it appears that a collectionbase has no key and i'd have to keep track of them on my own...
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