C#向Excel报表中插入图片的2种方法

一、插图的类（含2方法） 1using System; 2using System.Collections.Generic; 3using System.Text; 4//using Excel = Microsoft.Office.Interop.Excel; 5using Excel; 6using System.Windows.Forms; 7 8 9namespace ExcelReport 10{ 11 class InsertPicToExcel 12 { 13 /**//// <summary> 14 /// 打开没有模板的操作。 15 /// </summary> 16 public void Open() 17 { 18 this.Open(String.Empty); 19 } 20 21 /**//// <summary> 22 /// 功能：实现Excel应用程序的打开 23 /// </summary> 24 /// <param name="TemplateFilePath">模板文件物理路径</param> 25 public void Open(string TemplateFilePath) 26 { 27 //打开对象 28 m_objExcel = new Excel.Application(); 29 m_objExcel.Visible = false; 30 m_objExcel.DisplayAlerts = false; 31 32 if (m_objExcel.Version != "11.0") 33 { 34 MessageBox.Show("您的 Excel 版本不是 11.0 （Office 2003），操作可能会出现问题。"); 35 m_objExcel.Quit(); 36 return; 37 } 38 39 m_objBooks = (Excel.Workbooks)m_objExcel.Workbooks; 40 if (TemplateFilePath.Equals(String.Empty)) 41 { 42 m_objBook = (Excel._Workbook)(m_objBooks.Add(m_objOpt)); 43 } 44 else 45 { 46 m_objBook = m_objBooks.Open(TemplateFilePath, m_objOpt, m_objOpt, m_objOpt, m_objOpt, 47 m_objOpt, m_objOpt, m_objOpt, m_objOpt, m_objOpt, m_objOpt, m_objOpt, m_objOpt, m_objOpt, m_objOpt); 48 } 49 m_objSheets = (Excel.Sheets)m_objBook.Worksheets; 50 m_objSheet = (Excel._Worksheet)(m_objSheets.get_Item(1)); 51 m_objExcel.WorkbookBeforeClose += new Excel.AppEvents_WorkbookBeforeCloseEventHandler(m_objExcel_WorkbookBeforeClose); 52 } 53 54 private void m_objExcel_WorkbookBeforeClose(Excel.Workbook m_objBooks, ref bool _Cancel) 55 { 56 MessageBox.Show("保存完毕！"); 57 } 58 59 /**//// <summary> 60 /// 将图片插入到指定的单元格位置。 61 /// 注意：图片必须是绝对物理路径 62 /// </summary> 63 /// <param name="RangeName">单元格名称，例如：B4</param> 64 /// <param name="PicturePath">要插入图片的绝对路径。</param> 65 public void InsertPicture(string RangeName, string PicturePath) 66 { 67 m_objRange = m_objSheet.get_Range(RangeName, m_objOpt); 68 m_objRange.Select(); 69 Excel.Pictures pics = (Excel.Pictures)m_objSheet.Pictures(m_objOpt); 70 pics.Insert(PicturePath, m_objOpt); 71 } 72 73 /**//// <summary> 74 /// 将图片插入到指定的单元格位置，并设置图片的宽度和高度。 75 /// 注意：图片必须是绝对物理路径 76 /// </summary> 77 /// <param name="RangeName">单元格名称，例如：B4</param> 78 /// <param name="PicturePath">要插入图片的绝对路径。</param> 79 /// <param name="PictuteWidth">插入后，图片在Excel中显示的宽度。</param> 80 /// <param name="PictureHeight">插入后，图片在Excel中显示的高度。</param> 81 public void InsertPicture(string RangeName, string PicturePath, float PictuteWidth, float PictureHeight) 82 { 83 m_objRange = m_objSheet.get_Range(RangeName, m_objOpt); 84 m_objRange.Select(); 85 float PicLeft, PicTop; 86 PicLeft = Convert.ToSingle(m_objRange.Left); 87 PicTop = Convert.ToSingle(m_objRange.Top); 88 //参数含义： 89 //图片路径 90 //是否链接到文件 91 //图片插入时是否随文档一起保存 92 //图片在文档中的坐标位置（单位：points） 93 //图片显示的宽度和高度（单位：points） 94 //参数详细信息参见：http://msdn2.microsoft.com/zh-cn/library/aa221765(office.11).aspx 95 m_objSheet.Shapes.AddPicture(PicturePath,Microsoft.Office.Core.MsoTriState.msoFalse, 96 Microsoft.Office.Core.MsoTriState.msoTrue, PicLeft, PicTop, PictuteWidth, PictureHeight); 97 } 98 99 /**//// <summary>100 /// 将Excel文件保存到指定的目录，目录必须事先存在，文件名称不一定要存在。101 /// </summary>102 /// <param name="OutputFilePath">要保存成的文件的全路径。</param>103 public void SaveFile(string OutputFilePath)104 {105 m_objBook.SaveAs(OutputFilePath, m_objOpt, m_objOpt,106 m_objOpt, m_objOpt, m_objOpt, Excel.XlSaveAsAccessMode.xlNoChange,107 m_objOpt, m_objOpt, m_objOpt, m_objOpt, m_objOpt);108109 this.Close();110 }111 /**//// <summary>112 /// 关闭应用程序113 /// </summary>114 private void Close()115 {116 m_objBook.Close(false, m_objOpt, m_objOpt);117 m_objExcel.Quit();118 }119120 /**//// <summary>121 /// 释放所引用的COM对象。注意：这个过程一定要执行。122 /// </summary>123 public void Dispose()124 {125 ReleaseObj(m_objSheets);126 ReleaseObj(m_objBook);127 ReleaseObj(m_objBooks);128 ReleaseObj(m_objExcel);129 System.GC.Collect();130 System.GC.WaitForPendingFinalizers();131 }132 /**//// <summary>133 /// 释放对象，内部调用134 /// </summary>135 /// <param name="o"></param>136 private void ReleaseObj(object o)137 {138 try139 {140 System.Runtime.InteropServices.Marshal.ReleaseComObject(o);141 }142 catch { }143 finally { o = null; }144 }145146 private Excel.Application m_objExcel = null;147 private Excel.Workbooks m_objBooks = null;148 private Excel._Workbook m_objBook = null;149 private Excel.Sheets m_objSheets = null;150 private Excel._Worksheet m_objSheet = null;151 private Excel.Range m_objRange = null;152 private object m_objOpt = System.Reflection.Missing.Value;153 }154 155}156 

 二、调用 1using System; 2using System.Collections.Generic; 3using System.ComponentModel; 4using System.Data; 5using System.Drawing; 6using System.Text; 7using System.Windows.Forms; 8 9namespace ExcelReport10{11 public partial class Form1 : Form12 {13 public Form1()14 {15 InitializeComponent();16 }1718 private void Form1_Load(object sender, EventArgs e)19 {20 InsertPicToExcel ipt = new InsertPicToExcel();21 ipt.Open();22 ipt.InsertPicture("B2", @"C:/Excellogo.gif");23 ipt.InsertPicture("B18", @"C:/Excellogo.gif", 120, 80);24 ipt.SaveFile(@"C:/ExcelTest.xls");25 ipt.Dispose();26 }27 28 }29}