Code __top__: Vb.net Billing Software Source

-- 2. Customer table CREATE TABLE tbl_Customer ( CustomerID INT PRIMARY KEY IDENTITY(1,1), CustomerName NVARCHAR(150), GSTIN NVARCHAR(15), Address NVARCHAR(500), Mobile NVARCHAR(15) );

lblSubtotal.Text = subtotal.ToString("N2") lblTax.Text = totalTax.ToString("N2") lblDiscount.Text = discountAmt.ToString("N2") lblGrandTotal.Text = grandTotal.ToString("N2")

CRUD (Create, Read, Update, Delete) operations for managing client details, credit limits, and contact information. vb.net billing software source code

When exploring , you should look for the following fundamental modules to ensure the application is functional and secure:

Imports System.Windows.Forms

To calculate bill totals, you must handle product price and quantity changes dynamically.

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Remember to thoroughly test any downloaded code, verify database connections, and ensure all calculations are accurate before deploying to a production environment.

Private Sub btnAddProduct_Click(sender As Object, e As EventArgs) Handles btnAddProduct.Click Try OpenDB() Dim query As String = "INSERT INTO tbl_Product (ProductCode, ProductName, Unit, SellingPrice, GST_Percent, StockQuantity) VALUES (@code, @name, @unit, @price, @gst, @stock)" cmd = New SqlCommand(query, conn) cmd.Parameters.AddWithValue("@code", txtCode.Text) cmd.Parameters.AddWithValue("@name", txtName.Text) cmd.Parameters.AddWithValue("@unit", cmbUnit.Text) cmd.Parameters.AddWithValue("@price", Convert.ToDecimal(txtPrice.Text)) cmd.Parameters.AddWithValue("@gst", Convert.ToDecimal(txtGST.Text)) cmd.Parameters.AddWithValue("@stock", Convert.ToDecimal(txtStock.Text)) cmd.ExecuteNonQuery() MessageBox.Show("Product saved successfully.") LoadProductsDataGrid() Catch ex As Exception MessageBox.Show("Error: " & ex.Message) Finally CloseDB() End Try End Sub : Remember to thoroughly test any downloaded code,