Vb.net Connect To Access Database Programmatically Jun 2026

Private Sub AddUser(username As String, email As String) Dim connString As String = GetConnectionString() Dim query As String = "INSERT INTO Users (Username, Email) VALUES (@Username, @Email)" Using conn As New OleDbConnection(connString) Using cmd As New OleDbCommand(query, conn) ' Add parameters properly cmd.Parameters.AddWithValue("@Username", username) cmd.Parameters.AddWithValue("@Email", email)

The Using statement ensures the connection is closed and disposed of automatically, even if an error occurs. vb.net connect to access database programmatically

The first step in any code-behind file (usually Form1.vb ) is to import the namespaces that allow you to use database classes without typing the full path every time. Private Sub AddUser(username As String, email As String)

Using conn As New OleDbConnection(connString) Dim adapter As New OleDbDataAdapter(query, conn) adapter.Fill(dt) End Using Private Sub AddUser(username As String

Private Sub btnAdd_Click(sender As Object, e As EventArgs) Handles btnAdd.Click If String.IsNullOrWhiteSpace(txtName.Text) Then MessageBox.Show("Name is required.") Return End If