using ClosedXML.Excel;
using System;
using System.Linq;

namespace ClosedXML_Examples.Columns
{
    public class InsertColumns : IXLExample
    {
        public void Create(String filePath)
        {
            var workbook = new XLWorkbook();
            var ws = workbook.Worksheets.Add("Inserting Columns");

            // Color the entire spreadsheet using columns
            ws.Columns().Style.Fill.BackgroundColor = XLColor.LightCyan;

            // Put a value in a few cells
            foreach (var r in Enumerable.Range(1, 5))
                foreach (var c in Enumerable.Range(1, 5))
                    ws.Cell(r, c).Value = "X";

            var blueColumn = ws.Column(2);
            var redColumn = ws.Column(5);

            blueColumn.Style.Fill.BackgroundColor = XLColor.Blue;
            blueColumn.InsertColumnsAfter(2);

            redColumn.Style.Fill.BackgroundColor = XLColor.Red;
            redColumn.InsertColumnsBefore(2);

            ws.Rows(3, 4).Style.Fill.BackgroundColor = XLColor.Orange;
            ws.Range("B1:D1").InsertColumnsAfter(2);
            ws.Range("B2:D2").InsertColumnsBefore(2);
            ws.Range("B3:D3").InsertColumnsAfter(2);
            ws.Range("B4:D4").InsertColumnsBefore(2);

            workbook.SaveAs(filePath);
        }
    }
}