Vb.net Billing Software Source Code ✪

A modern billing system in VB.NET is built using the .NET framework, typically leveraging Windows Forms (WinForms) for the desktop interface and either SQL Server

For professional reports, use Crystal Reports for VB.NET or RDLC Reports (built into Visual Studio). vb.net billing software source code

Why Start with Source Code? (The "Starter Kit" Approach)

You might be thinking, “Why not start from a blank screen?” A modern billing system in VB

    ' Data to be written (can be pulled from TextBoxes or DataGridViews)
    Dim customerName As String = txtCustomerName.Text
    Dim totalAmount As String = lblTotal.Text
    Dim invoiceDate As String = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss")
Private Sub SaveInvoice()
    Using conn As SqlConnection = getConnection()
        conn.Open()
        Dim transaction As SqlTransaction = conn.BeginTransaction()
        Try
            '1. Insert into tbl_Invoice_Master
            Dim masterQuery As String = "INSERT INTO tbl_Invoice_Master (InvoiceDate, CustomerID, SubTotal, TaxAmount, GrandTotal) " &
                                        "VALUES (@date, @custID, @sub, @tax, @grand); SELECT SCOPE_IDENTITY();"
            Dim newInvoiceNo As Integer = 0
            Using cmdMaster As New SqlCommand(masterQuery, conn, transaction)
                cmdMaster.Parameters.AddWithValue("@date", DateTime.Now)
                cmdMaster.Parameters.AddWithValue("@custID", GetCurrentCustomerID()) 'Function to get selected customer ID
                cmdMaster.Parameters.AddWithValue("@sub", lblSubTotal.Text)
                cmdMaster.Parameters.AddWithValue("@tax", lblTax.Text)
                cmdMaster.Parameters.AddWithValue("@grand", lblGrandTotal.Text)
                newInvoiceNo = Convert.ToInt32(cmdMaster.ExecuteScalar())
            End Using
        '2. Insert into tbl_Invoice_Details for each row in cart
        Dim detailsQuery As String = "INSERT INTO tbl_Invoice_Details (InvoiceNo, ProductID, Quantity, Rate, Total) " &
                                     "VALUES (@invNo, @prodID, @qty, @rate, @total)"
        For Each row As DataGridViewRow In dgvCart.Rows
            Using cmdDetails As New SqlCommand(detailsQuery, conn, transaction)
                cmdDetails.Parameters.AddWithValue("@invNo", newInvoiceNo)
                cmdDetails.Parameters.AddWithValue("@prodID", row.Cells("ProductID").Value)
                cmdDetails.Parameters.AddWithValue("@qty", row.Cells("Quantity").Value)
                cmdDetails.Parameters.AddWithValue("@rate", row.Cells("Rate").Value)
                cmdDetails.Parameters.AddWithValue("@total", row.Cells("Total").Value)
                cmdDetails.ExecuteNonQuery()
In the late 1990s and early 2000s, a quiet revolution took place in back-offices and small retail shops. It was the era of the Rapid Application Development (RAD) Insert into tbl_Invoice_Master Dim masterQuery As String =
Report: Analysis of "VB.NET Billing Software Source Code"
Executive summary
This report reviews typical characteristics, common features, code structure, security considerations, licensing and reuse risks, and recommendations when evaluating or using VB.NET billing software source code (open-source or third-party).
Some of the key components of the source code include:
Selection: Use ComboBox or CheckBox to allow users to select products from a predefined list.