C#Excel转图片代码

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using Aspose.Cells;

using Aspose.Cells.Rendering;


 public void ExcelTopngImg(string xlsFile,string picFile)
        {

            Workbook book = new Workbook(xlsFile);

            Worksheet sheet = book.Worksheets[0];
            sheet.PageSetup.LeftMargin = 0;
            sheet.PageSetup.RightMargin = 0;
            sheet.PageSetup.BottomMargin = 0;
            sheet.PageSetup.TopMargin = 0;


            ImageOrPrintOptions imgOptions = new ImageOrPrintOptions();

            //imgOptions.ImageFormat = System.Drawing.Imaging.ImageFormat.Jpeg;
            imgOptions.ImageFormat = System.Drawing.Imaging.ImageFormat.Png;


            imgOptions.OnePagePerSheet = true;

            imgOptions.PrintingPage = PrintingPageType.IgnoreBlank;



            SheetRender sr = new SheetRender(sheet, imgOptions);

            sr.ToImage(0, picFile);

        }
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