I have the following code inside a function that handles a form submit.

The code does not produce any errors, but it doesn't work either. The debug_label that I set as the bottom of the function does not get set either.

Also, I use connectionString1 for populating a gridview so I know the connection string is good.

Code:
        Dim cn As OleDbConnection
        Dim cmd As OleDbCommand
        Dim sqlstr As String, ans As Boolean

        Dim strConnection As String = ConfigurationManager.ConnectionStrings("ConnectionString1").ConnectionString

        cn = New OleDbConnection()
        cn.ConnectionString = strConnection
        cn.Open()
        sqlstr = "INSERT INTO PRACTISE(ID,rating,comment,user_name,product_name) VALUES('" & _
        Convert.ToInt32(comment_id) & "','" & _
        Trim(rating) & "','" & _
        Trim(comment) & "','" & _
        Trim(username) & "','" & _
        Trim(product) & "')"

        cmd = New OleDbCommand(sqlstr, cn)
        ans = cmd.ExecuteNonQuery()
        If (ans = True) Then

        Else
            ' error
        End If
        cmd = Nothing
        cn.Close()

        debug_label.Text() = strConnection
Can anyone point me in the right direction?