Title Experience
: Databases to manage contact details and purchase history.
What do you plan to use for your application?
-- Create Database CREATE DATABASE BillingSystem; GO
Rename your default form to frmBilling.vb . Design the user interface with the following control configurations: vb.net billing software source code
Private Sub ResetForm() dtCart.Clear() GenerateInvoiceNumber() UpdateGrandTotal() ClearProductFields() cmbCustomer.SelectedIndex = -1 cmbPaymentMethod.SelectedIndex = -1 End Sub
Open App.config and add the database connection string within the tag:
Private Sub Timer1_Tick(sender As Object, e As EventArgs) Handles Timer1.Tick lblDateTime.Text = DateTime.Now.ToString() End Sub : Databases to manage contact details and purchase history
End Class
Catch ex As Exceptiontrans.Rollback()MessageBox.Show("Transaction aborted due to critical error: " & ex.Message, "Execution Error", MessageBoxButtons.OK, MessageBoxIcon.Error)End TryEnd UsingEnd Sub
Private Sub LoadProducts() Try Dim dt As DataTable = Product.GetAllProducts() cmbProductName.DataSource = dt cmbProductName.DisplayMember = "ProductName" cmbProductName.ValueMember = "ProductID" cmbProductName.SelectedIndex = -1 Catch ex As Exception MessageBox.Show("Error loading products: " & ex.Message) End Try End Sub Design the user interface with the following control
: Build an independent management form that interacts with the Products table to add new SKUs, update base prices, and warn users when a product's StockQty drops below 10 units.
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' Connection to MS Access Dim conn As New OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=Database.accdb;") conn.Open()
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