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Connecting to Access DB

Connecting to Access DB

Connecting to Access DB


Can I ask, please, that someone passes their eye over this to see that I have got it right and that it does what it is supposed to do which is: a) connect to the database; b) open it; c) check that the email address entered by the user is the same as in the Access email column called strEmail; and d) closes Access.

I have spent hours trying to resolve a 'connection doesn't initialize' with cmd.ExecuteNonQuery(), but I am now not getting that error.


Protected Sub btnPassSend_Click(sender As Object, e As EventArgs) Handles btnPassSend.Click

        Dim conn As New OleDbConnection
        Dim OleDbConnection As New OleDbConnection
        Dim cmd As New OleDbCommand

        ' Check if email field is empty

        If UserEmail.Text = "" Then

            ErrorMsg.Text = "Please complete the required fields"
            ErrorMsg.Visible = True

        End If

        'Connect to Access

        conn.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|students.mdb;"


        cmd = New OleDbCommand("SELECT strEmail FROM university WHERE strEmail=@strEmail", conn)

 'Check the user's email address in the strEmail column in Access corresponds to that entered by the user in 
 'the TextBox whose ID is "UserEmail"

        cmd.Parameters.AddWithValue("@strEmail", UserEmail.Text)

        cmd.Connection = conn


        'close Access connection 


        'SMTP code follows... 

Thanks for your time!

RE: Connecting to Access DB

What kind of access database is it: 97-2003 i.e. .mdb or 2007 onwards i.e. accdb?

JET4.0 will only connect to an .mdb. If you wish to connect to accdb, use ACE.OLEDB.12.0

RE: Connecting to Access DB

Hello xwb

Thanks for your reply.

It's Access 2007 (.mdb).

RE: Connecting to Access DB

Not sure what | does in datasource. Shouldn't it be \

Possibly something like

Data Source=DataDirectory\students.mdb

RE: Connecting to Access DB

No, it is supposed to look like this:

CODE -->

connectionString="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|students.mdb;" providerName="System.Data.OleDb"/> 

That's the correct path. The database is kept in a folder called App_Data and I think DataDirectory refers to that.

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