Question

我正在做一个WPF应用程序，使用c＃将我的文件从我的文件夹导入excel。我成功使用microsoft excel但我想知道如果用户没有安装microsoft excel是否可以查看该文件？下面是我尝试将图像转换为String的代码，但它不会显示在excel中。

using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    using System.Threading.Tasks;
    using System.Windows;
    using System.Windows.Controls;
    using System.Windows.Data;
    using System.Windows.Documents;
    using System.Windows.Input;
    using System.Windows.Media;
    using System.Windows.Media.Imaging;
    using System.Windows.Shapes;
    using ExcelOpenXMLBasics;
    //----------------------------------
    using System.Configuration;
    using System.Data.SqlClient;
    using System.Data;
    using Microsoft.Win32;
    //----------------------------------
    namespace WpfApplication2
    {
        public partial class Window2 : Window
        {
            List<String> stringValue;
            List<int> intValue;
            string Imagefile;

            public Window2()
            {
                InitializeComponent();

                System.Threading.Thread.CurrentThread.CurrentUICulture = System.Threading.Thread.CurrentThread.CurrentCulture;
                System.Threading.Thread.CurrentThread.CurrentCulture = new System.Globalization.CultureInfo("en-US");
            }

            private void btnCreateBasicWorkbook_Click(object sender, RoutedEventArgs e)
            {
                this.CreateBasicWorkbook("try7.xlsx", true);
            }

            private void CreateBasicWorkbook(string workbookName, bool createStylesInCode)
            {
                #region select file
                OpenFileDialog fileChooser = new OpenFileDialog();
                fileChooser.Filter = "image files (*.png)|*.png|All files (*.*)|*.*";
                fileChooser.InitialDirectory = @"C:\";
                fileChooser.Title = "Check if the image has been saved into PC disk";
                bool? result = fileChooser.ShowDialog();
                Imagefile = fileChooser.FileName;
                #endregion

                #region 1
                DocumentFormat.OpenXml.Packaging.SpreadsheetDocument spreadsheet;
                DocumentFormat.OpenXml.Spreadsheet.Worksheet worksheet;
                System.IO.StreamReader styleXmlReader;
                string styleXml;

                spreadsheet = Excel.CreateWorkbook(workbookName);
                if (spreadsheet == null)
                {
                    return;
                }

                if (createStylesInCode)
                {
                    Excel.AddBasicStyles(spreadsheet);
                }
                else
                {
                    using (styleXmlReader = new System.IO.StreamReader("PredefinedStyles.xml"))
                    {
                        styleXml = styleXmlReader.ReadToEnd();
                        Excel.AddPredefinedStyles(spreadsheet, styleXml);
                    }
                }

                Excel.AddWorksheet(spreadsheet, "Test 1");
                worksheet = spreadsheet.WorkbookPart.WorksheetParts.First().Worksheet; 
                #endregion



                //BitmapImage _Image = new BitmapImage(new Uri(@"C:\Users\ifcdu1\Desktop\limin.PNG"));
                //string _img = _Image.ToString();
                //@"C:\Users\ifcdu1\Desktop\limin.PNG"
                //byte imageArray1 = File.ReadAllBytes(@"C:\Users\ifcdu1\Desktop\limin.PNG");
                byte[] imageArray = System.IO.File.ReadAllBytes(Imagefile);
                string base64ImageRepresentation = Convert.ToBase64String(imageArray);
                //string test = Imagefile;
                //byte[] bytes = System.Text.ASCIIEncoding.ASCII.GetBytes(test);
                //string base64String = System.Convert.ToBase64String(bytes);
                //Console.WriteLine("Base 64 string: " + base64String);
                Excel.SetCellValue(spreadsheet, worksheet, 1, 1, base64ImageRepresentation, true);

                #region 2
                worksheet.Save();
                spreadsheet.Close();
                System.Diagnostics.Process.Start(workbookName);
                #endregion
            }
        }
    }

Answer 1

因此，如果用户有Excel，则会显示图像。这样做，如果图像没有显示（没有Excel），图像会打开其他像痛苦的东西，或者你希望图像进入的任何程序。

如何在Excel中显示图像

1 个答案: