using System.Data;
using System.Diagnostics;
using System.IO;

namespace Bytescout.Spreadsheet.Demo.Csharp.ImportFromDataTable
{
    class Program
    {
        static void Main(string[] args)
        {
            const string fileName = "CSharpImportFromDataTable.xls";

            // Create a new spreadsheet
            Spreadsheet spreadsheet = new Spreadsheet();

            // Get the data from the datatable that we want to import
            DataTable periodicTable = GetDataTable();

            // Import data into spreadheet
            spreadsheet.ImportFromDataTable(periodicTable);

            // Insert row with column captions
            Worksheet worksheet = spreadsheet.Worksheets[0];
            worksheet.Rows.Insert(0);
            for (int colIndex = 0; colIndex < periodicTable.Columns.Count; colIndex++)
            {
                worksheet.Cell(0, colIndex).Value = periodicTable.Columns[colIndex].Caption;
            }

            // Save the spreadsheet
            if (File.Exists(fileName)) File.Delete(fileName);
            spreadsheet.SaveAs(fileName);

            // Close spreadsheet
            spreadsheet.Close();

            // Open the spreadsheet
            Process.Start(fileName);
        }

        /// <summary>
        /// Creates a data table of the periodic table of elements
        /// </summary>
        /// <returns>A data table of the periodic table of elements</returns>
        private static DataTable GetDataTable()
        {
            DataTable periodicTable = new DataTable("PeriodicTable");

            periodicTable.Columns.Add("Name", typeof(string));
            periodicTable.Columns.Add("Symbol", typeof(string));
            periodicTable.Columns.Add("AtomicNumber", typeof(int));

            DataRow dr = periodicTable.Rows.Add();
            dr[0] = "Hydrogen";
            dr[1] = "H";
            dr[2] = "1";

            dr = periodicTable.Rows.Add();
            dr[0] = "Helium";
            dr[1] = "He";
            dr[2] = "2";

            dr = periodicTable.Rows.Add();
            dr[0] = "Lithium";
            dr[1] = "Li";
            dr[2] = "3";

            dr = periodicTable.Rows.Add();
            dr[0] = "Beryllium";
            dr[1] = "Be";
            dr[2] = "4";

            dr = periodicTable.Rows.Add();
            dr[0] = "Boron";
            dr[1] = "B";
            dr[2] = "5";

            dr = periodicTable.Rows.Add();
            dr[0] = "Carbon";
            dr[1] = "C";
            dr[2] = "6";

            return periodicTable;
        }
    }
}