Checking username availability in vb2010

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Hi guys.. i am working on a log in system in vb 2010.

All is working quite well but i still don't know how to check username availability.

Im using Access database.

Posted 1-Mar-12 1:11am

kimsnap

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uspatel · Accepted Answer · 2012-03-01T01:15:00

Solution 1

Try this
Check user availability

Posted 1-Mar-12 1:15am

uspatel

Comments

kimsnap 1-Mar-12 7:31am

Thank you sir, i will try this and get back when i see the result :)

uspatel 1-Mar-12 7:32am

Your welcome......

kimsnap 1-Mar-12 7:35am

Hi, ive seen the program and it is written in a language i dont understand..
i am working with vb.net ..

uspatel 1-Mar-12 7:41am

It is ASP code, You can take an idea how it does works....
see check.asp,check_avilability.js and use it vb.net with ADO.Net

kimsnap 1-Mar-12 7:52am

okay, i will do that. Thank you. :)

kimsnap · Accepted Answer · 2012-03-01T21:38:00

VB

'START .
        Dim conn = New OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;" & _
    "Data Source=" & Application.StartupPath & "\DBase.accdb;")
        conn.Open()
        Dim Str As String
        Str = "SELECT * FROM DB WHERE [Username] = '" & UsernameTextBox.Text & "'"
        Dim cmmd = New OleDbCommand(Str, conn)
        Dim dr As OleDbDataReader
        dr = cmmd.ExecuteReader()

        If Not dr.HasRows Then
            MsgBox("Username available.")
            'REST OF THE PROGRAM

        Else
            MsgBox("Username already taken. Try another.")
        End If

        'END