ByteScout Spreadsheet SDK – C# – Generate Invoice

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ByteScout Spreadsheet SDK – C# – Generate Invoice

printable version:
ByteScout-Spreadsheet-SDK-C-sharp-Generate-Invoice.pdf

How to generate invoice in C# and ByteScout Spreadsheet SDK

The tutorial below will demonstrate how to generate invoice in C#

The code below will help you to implement an C# app to generate invoice. ByteScout Spreadsheet SDK: the SDK to create, read, modify and calculate spreadsheets. Formula calculations are supported, import and export to and from JSON, CSV, XML, databases, arrays. It can generate invoice in C#.

This code snippet below for ByteScout Spreadsheet SDK works best when you need to quickly generate invoice in your C# application. Just copy and paste the code into your C# application’s code and follow the instruction. This basic programming language sample code for C# will do the whole work for you to generate invoice.

Trial version of ByteScout Spreadsheet SDK can be downloaded for free from our website. It also includes source code samples for C# and other programming languages.

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Program.cs

      using Bytescout.Spreadsheet;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Drawing;

namespace GenerateInvoice
{
    class Program
    {
        static void Main(string[] args)
        {
            try
            {
                // STEP-1: Get Invoice Data
                var oInvoiceData = GetInvoiceData();

                // STEP-2: Generate Invoice in memory
                var document = _GetSpreadsheet(oInvoiceData);

                // Step-3: Export to XLS, XLSX and PDF
                document.SaveAsXLSX("Invoice.xlsx");
                document.SaveAsXLS("Invoice.xls");
                document.SaveAsPDF("Invoice.pdf");

                // Open output file
                Process.Start("Invoice.xlsx");
                Process.Start("Invoice.pdf");
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }

            Console.WriteLine("Press enter key to exit...");
            Console.ReadLine();
        }

        /// <summary>
        /// Get Spreadsheet
        /// </summary>
        private static Spreadsheet _GetSpreadsheet(InvoiceData oInvoiceData)
        {
            // Create new Spreadsheet
            Spreadsheet document = new Spreadsheet();
            document.Workbook.AutoCalculation = true;
            document.Workbook.DefaultFont = new SpreadsheetFont("Arial", 10);

            // Add new worksheet
            Worksheet Sheet = document.Workbook.Worksheets.Add("Invoice");

            int startRow = 0;

            // 1. Write Company Name
            Sheet.Cell(startRow, 0).Value = oInvoiceData.CompanyName;
            Sheet.Cell(startRow, 0).Font = new Font("Arial", 15, FontStyle.Bold | FontStyle.Italic);

            // 2. Write Company Address
            Sheet.Cell((++startRow), 0).Value = oInvoiceData.CompanyAddress1;
            Sheet.Cell((++startRow), 0).Value = oInvoiceData.CompanyAddress2;

            startRow++;

            // 3. Write Invoice Info
            Sheet.Cell((++startRow), 2).Value = "Invoice No.";
            Sheet.Cell(startRow, 2).Font = new Font("Arial", 10, FontStyle.Bold);
            Sheet.Cell(startRow, 2).AlignmentHorizontal = Bytescout.Spreadsheet.Constants.AlignmentHorizontal.Right;

            Sheet.Cell(startRow, 3).Value = oInvoiceData.InvoiceNo;

            Sheet.Cell((++startRow), 2).Value = "Invoice Date.";
            Sheet.Cell(startRow, 2).Font = new Font("Arial", 10, FontStyle.Bold);
            Sheet.Cell(startRow, 2).AlignmentHorizontal = Bytescout.Spreadsheet.Constants.AlignmentHorizontal.Right;

            Sheet.Cell(startRow, 3).ValueAsDateTime = oInvoiceData.InvoiceDate;
            Sheet.Cell(startRow, 3).NumberFormatString = "mm/dd/yyyy";

            // 4. Write Client Info
            Sheet.Cell((++startRow), 0).Value = oInvoiceData.ClientName;
            Sheet.Cell(startRow, 0).Font = new Font("Arial", 12, FontStyle.Bold);

            Sheet.Cell((++startRow), 0).Value = oInvoiceData.ClientAddress1;
            Sheet.Cell((++startRow), 0).Value = oInvoiceData.ClientAddress2;
            startRow++;

            // 5. Write Notes
            Sheet.Cell((++startRow), 0).Value = "Notes";
            Sheet.Cell(startRow, 0).Font = new Font("Arial", 12, FontStyle.Bold);

            Sheet.Cell((++startRow), 0).Value = oInvoiceData.Notes;
            startRow += 2;

            // 6. Add Product Listing
            string startAddress = "";
            string endAddress = "";

            Sheet.Cell((++startRow), 0).Value = "Item";
            _AddAllBorders(Sheet.Cell(startRow, 0));
            Sheet.Cell(startRow, 0).Font = new Font("Arial", 11, FontStyle.Bold);

            Sheet.Cell(startRow, 1).Value = "Quantity";
            _AddAllBorders(Sheet.Cell(startRow, 1));
            Sheet.Cell(startRow, 1).AlignmentHorizontal = Bytescout.Spreadsheet.Constants.AlignmentHorizontal.Right;
            Sheet.Cell(startRow, 1).Font = new Font("Arial", 11, FontStyle.Bold);

            Sheet.Cell(startRow, 2).Value = "Price";
            _AddAllBorders(Sheet.Cell(startRow, 2));
            Sheet.Cell(startRow, 2).AlignmentHorizontal = Bytescout.Spreadsheet.Constants.AlignmentHorizontal.Right;
            Sheet.Cell(startRow, 2).Font = new Font("Arial", 11, FontStyle.Bold);

            Sheet.Cell(startRow, 3).Value = "Total";
            _AddAllBorders(Sheet.Cell(startRow, 3));
            Sheet.Cell(startRow, 3).AlignmentHorizontal = Bytescout.Spreadsheet.Constants.AlignmentHorizontal.Right;
            Sheet.Cell(startRow, 3).Font = new Font("Arial", 11, FontStyle.Bold);


            for (int i = 0; i < oInvoiceData.lstProducts.Count; i++)
            {
                Sheet.Cell((++startRow), 0).Value = oInvoiceData.lstProducts[i].ProductName;
                _AddAllBorders(Sheet.Cell(startRow, 0));

                Sheet.Cell(startRow, 1).Value = oInvoiceData.lstProducts[i].Quantity;
                Sheet.Cell(startRow, 1).AlignmentHorizontal = Bytescout.Spreadsheet.Constants.AlignmentHorizontal.Right;
                _AddAllBorders(Sheet.Cell(startRow, 1));

                Sheet.Cell(startRow, 2).Value = oInvoiceData.lstProducts[i].Price;
                Sheet.Cell(startRow, 2).AlignmentHorizontal = Bytescout.Spreadsheet.Constants.AlignmentHorizontal.Right;
                _AddAllBorders(Sheet.Cell(startRow, 2));

                // Calculated cell
                string formulaMultiplication = string.Format("={0}*{1}", Sheet.Cell(startRow, 1).GetAddress().ToString(), Sheet.Cell(startRow, 2).GetAddress().ToString());
                Sheet.Cell(startRow, 3).Formula = formulaMultiplication;
                Sheet.Cell(startRow, 3).AlignmentHorizontal = Bytescout.Spreadsheet.Constants.AlignmentHorizontal.Right;
                _AddAllBorders(Sheet.Cell(startRow, 3));

                // Address to be used for total sum
                if (i == 0)
                {
                    startAddress = Sheet.Cell(startRow, 3).GetAddress().ToString();
                }
                endAddress = Sheet.Cell(startRow, 3).GetAddress().ToString();
            }

            Sheet.Cell((++startRow), 2).Value = "TOTAL";
            Sheet.Cell(startRow, 2).Font = new Font("Arial", 11, FontStyle.Bold);
            Sheet.Cell(startRow, 2).AlignmentHorizontal = Bytescout.Spreadsheet.Constants.AlignmentHorizontal.Right;

            string formulaTotalSum = string.Format("=SUM({0}:{1})", startAddress, endAddress);
            Sheet.Cell(startRow, 3).Formula = formulaTotalSum;
            Sheet.Cell(startRow, 3).Font = new Font("Arial", 11, FontStyle.Bold);
            Sheet.Cell(startRow, 3).AlignmentHorizontal = Bytescout.Spreadsheet.Constants.AlignmentHorizontal.Right;

            // AutoFit all columns
            Sheet.Columns[0].AutoFit();
            Sheet.Columns[1].AutoFit();
            Sheet.Columns[2].AutoFit();
            Sheet.Columns[3].AutoFit();

            // Return all formatted document
            return document;
        }

        /// <summary>
        /// Add borders to cell
        /// </summary>
        private static void _AddAllBorders(Cell cell)
        {
            cell.LeftBorderStyle = Bytescout.Spreadsheet.Constants.LineStyle.Thin;
            cell.RightBorderStyle = Bytescout.Spreadsheet.Constants.LineStyle.Thin;
            cell.TopBorderStyle = Bytescout.Spreadsheet.Constants.LineStyle.Thin;
            cell.BottomBorderStyle = Bytescout.Spreadsheet.Constants.LineStyle.Thin;
        }

        /// <summary>
        /// Gets Sample invoice data
        /// </summary>
        private static InvoiceData GetInvoiceData()
        {
            var oRet = new InvoiceData
            {
                CompanyName = "Your Company Name",
                CompanyAddress1 = "Your Address",
                CompanyAddress2 = "City, State Zip",

                ClientName = "Client Name",
                ClientAddress1 = "Address",
                ClientAddress2 = "City, State Zip",

                InvoiceNo = "123456",
                InvoiceDate = DateTime.Now,

                Notes = "Some notes...",

                lstProducts = new List<InvoiceProduct> {
                    new InvoiceProduct{ ProductName = "Product 1", Price = 30, Quantity = 10 },
                    new InvoiceProduct{ ProductName = "Product 2", Price = 40, Quantity = 30 },
                    new InvoiceProduct{ ProductName = "Product 3", Price = 50, Quantity = 15 },
                    new InvoiceProduct{ ProductName = "Product 4", Price = 20, Quantity = 20 }
                }
            };


            return oRet;
        }

    }

    #region Invoice Class

    /// <summary>
    /// Invoice Data class
    /// </summary>
    public class InvoiceData
    {
        #region  Constructors

        public InvoiceData()
        {
            lstProducts = new List<InvoiceProduct>();
        }

        #endregion

        public string CompanyName { get; set; }
        public string CompanyAddress1 { get; set; }
        public string CompanyAddress2 { get; set; }

        public string InvoiceNo { get; set; }
        public DateTime InvoiceDate { get; set; }

        public string ClientName { get; set; }
        public string ClientAddress1 { get; set; }
        public string ClientAddress2 { get; set; }

        public string Notes { get; set; }

        public List<InvoiceProduct> lstProducts { get; set; }
    }

    /// <summary>
    /// Invoice Product class
    /// </summary>
    public class InvoiceProduct
    {
        public string ProductName { get; set; }
        public int Quantity { get; set; }
        public decimal Price { get; set; }
    }

    #endregion

}