COM 自动化控制Excel应用程序

class Program

    {

        static void Main(string[] args)

        {

            var dt = new System.Data.DataTable();



            dt.Columns.Add("#");



            dt.Columns.Add("Expiration Date");



            dt.Columns.Add("Remark");



            DataRow dr = dt.NewRow();



            dr[0] = 1;

            dr[1] = "23/9/2015";

            dr[2] = "For H&M (Shanghai DC) use. H&M is using EPV and it does not have license control function, this license file is for record only. ";



            dt.Rows.Add(dr);



            dr = dt.NewRow();



            dr[0] = 2;

            dr[1] = "23/12/2015";

            dr[2] = "For SZ SI internal testing. ";



            dt.Rows.Add(dr);



            ExportToExcel(dt);

        }



        /// <summary>

        /// 导出Excel

        /// </summary>

        /// <param name="dt">要导出的DataTable</param>

        private static void ExportToExcel(System.Data.DataTable dt)

        {

            if (dt == null) return;

            var xlApp = new Application();

            xlApp.Visible = true;



            var workBook = xlApp.Workbooks.Add(Type.Missing);

            //从1开始

            Worksheet workSheet = workBook.Sheets[1];

            Range range;



            //写入标题

            for (int i = 0; i < dt.Columns.Count; i++)

            {

                workSheet.Cells[1, i + 1] = dt.Columns[i].ColumnName;

                range = (Range)workSheet.Cells[1, i + 1];

                range.Interior.ColorIndex = 31;//背景颜色

                range.Font.ColorIndex = 2;

                range.HorizontalAlignment = XlHAlign.xlHAlignCenter;//居中

                //加边框

                range.BorderAround(XlLineStyle.xlContinuous, XlBorderWeight.xlThin, XlColorIndex.xlColorIndexAutomatic, null);

                range.EntireColumn.ColumnWidth = 30;

                range.EntireRow.AutoFit();//自动调整行高

            }

            //写入内容

            for (int r = 0; r < dt.Rows.Count; r++)

            {

                for (int i = 0; i < dt.Columns.Count; i++)

                {

                    workSheet.Cells[r + 2, i + 1] = dt.Rows[r][i];

                    range = (Range)workSheet.Cells[r + 2, i + 1];

                    range.Font.Size = 9;//字体大小

                    range.HorizontalAlignment = XlHAlign.xlHAlignCenter;//居中

                    range.VerticalAlignment = XlHAlign.xlHAlignCenter;

                    //加边框

                    range.BorderAround(XlLineStyle.xlContinuous, XlBorderWeight.xlThin, XlColorIndex.xlColorIndexAutomatic, null);

                    range.EntireRow.AutoFit();//自动调整行高

                    range.WrapText = true;

                    if (i == dt.Columns.Count - 1)

                    {

                        range.HorizontalAlignment = XlHAlign.xlHAlignLeft;

                    }

                }

            }

        }



    }