Generate Auto-number The Sequence?

Nov 10, 2011

I am trying to generate autonumber the sequence is like this. From left to right, last two digit from Year, Month in numeric and the last three digit number be from 001 to 999. I tried with the below coding but the sequence is not coming correctly.

<code>
Imports System.IO
Imports System.Data.OleDb

[Code].....

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I am working on student application form in vb.net. I designed a form with fields like firstname, Middlename, Lastname, age ,____,DOB,Education.Height and Weight. Back end as SQL Server 2005. I just want to generate sequence numbers in textbox using vb.net. While loading the form,i should generate number as '1' and second time,if the form gets loading it shows '2' and goes on...

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How can i auto generate number in vb.net

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Code:
Imports System.Data.SqlClient
Public Class NewConnection

[code].....

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My code: it is used to generate number in date format my problem is that it doesn't show any output in the textbox nor in the database. The last num in my database is 2012010001.

Dim i As Integer
Dim strSQL As String
Dim strMonth As String
Dim strYear As String
Dim strTheID As String
Dim today As Date
[Code] .....

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I would like to generate a tracking number as primary key for my database.

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For example:

2012010000-1 (Month January, so start from 0000)
2012010001-1
2012010002-1

[Code].....

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Public Sub serialnogenerate()
connect()
sqlquery = "select c_slno from newconnection"

[Code].....

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Here is my scenario
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ColA ColB ColC

[code].....

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[Code]...

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I want it to go like
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(Press 2) - 12 -
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for example:

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[Code].....

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Dim a, count As Integer
a = TextBox1.Text
count = 0
ListBox1.Items.Clear()

[code]....

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[Code]....

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[Code]...

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Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim sql As String

[code].....

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