Vb.net Access Database Example [OFFICIAL]

Using conn As New OleDbConnection(connectionString) Using adapter As New OleDbDataAdapter(query, conn) Dim table As New DataTable() adapter.Fill(table) dgvUsers.DataSource = table End Using End Using

Using conn As New OleDbConnection(connectionString) Using cmd As New OleDbCommand(query, conn) cmd.Parameters.AddWithValue("@FirstName", txtFirstName.Text) cmd.Parameters.AddWithValue("@LastName", txtLastName.Text) cmd.Parameters.AddWithValue("@Email", txtEmail.Text) cmd.Parameters.AddWithValue("@Age", Convert.ToInt32(txtAge.Text)) cmd.Parameters.AddWithValue("@UserID", userID) conn.Open() cmd.ExecuteNonQuery() conn.Close() End Using End Using vb.net access database example

' Optional: Display record count lblStatus.Text = $"Loaded dgvUsers.Rows.Count records" End Sub Add this code to the Insert button: vb.net access database example

' Get the UserID from the selected row Dim userID As Integer = Convert.ToInt32(dgvUsers.SelectedRows(0).Cells("UserID").Value) vb.net access database example

Private Function ValidateInputs() As Boolean If String.IsNullOrWhiteSpace(txtFirstName.Text) Then MessageBox.Show("First Name is required") Return False End If

Private Sub btnDelete_Click(sender As Object, e As EventArgs) Handles btnDelete.Click If dgvUsers.SelectedRows.Count = 0 Then MessageBox.Show("Please select a record to delete") Return End If Dim userID As Integer = Convert.ToInt32(dgvUsers.SelectedRows(0).Cells("UserID").Value)

Private Sub btnLoad_Click(sender As Object, e As EventArgs) Handles btnLoad.Click LoadData() End Sub Private Sub LoadData() Dim query As String = "SELECT * FROM Users"