C#向Excel报表中插入图片的2种方法【转】

这几天做向Excel插入数据，其中有插入图片的需求，经试验，下面2种方法都可以插入图片，但各有不同的用处。现将这2种方法共享出来， 希望需要的朋友进行参考，代码中已经有详细注释了。

注意：使用之前需要引用COM：Microsoft Office 11.0 Object Library 如果引用列表中没有，需要自行添加 C:\Program Files\Microsoft Office\OFFICE11\EXCEL.EXE

调用方法：

MengXianhui.Utility.ExcelReport.InsertPictureToExcel ipt = new MengXianhui.Utility.ExcelReport.InsertPictureToExcel(); ipt.Open(); ipt.InsertPicture("B2", @"C:\Excellogo.gif"); ipt.InsertPicture("B8", @"C:\Excellogo.gif",120,80); ipt.SaveFile(@"C:\ExcelTest.xls"); ipt.Dispose();
简单包装的类：

using System; using System.Windows.Forms; using Excel = Microsoft.Office.Interop.Excel; namespace MengXianhui.Utility.ExcelReport {   class InsertPictureToExcel   {     /// <summary>     /// 打开没有模板的操作。     /// </summary>     public void Open( )     {       this.Open(String.Empty);     }     /// <summary>     /// 功能：实现Excel应用程序的打开     /// </summary>     /// <param name="TemplateFilePath">模板文件物理路径</param>     public void Open( string TemplateFilePath )     {       //打开对象       m_objExcel = new Excel.Application();       m_objExcel.Visible = false;       m_objExcel.DisplayAlerts = false;       if (m_objExcel.Version != "11.0")       {         MessageBox.Show("您的 Excel 版本不是 11.0 （Office 2003），操作可能会出现问题。");         m_objExcel.Quit();         return;       }       m_objBooks = (Excel.Workbooks)m_objExcel.Workbooks;       if (TemplateFilePath.Equals(String.Empty))       {         m_objBook = (Excel._Workbook)(m_objBooks.Add(m_objOpt));       }       else       {         m_objBook = m_objBooks.Open(TemplateFilePath, m_objOpt, m_objOpt, m_objOpt, m_objOpt, m_objOpt, m_objOpt, m_objOpt, m_objOpt, m_objOpt, m_objOpt, m_objOpt, m_objOpt, m_objOpt, m_objOpt);       }       m_objSheets = (Excel.Sheets)m_objBook.Worksheets;       m_objSheet = (Excel._Worksheet)(m_objSheets.get_Item(1));       m_objExcel.WorkbookBeforeClose += new Excel.AppEvents_WorkbookBeforeCloseEventHandler(m_objExcel_WorkbookBeforeClose);     }     private void m_objExcel_WorkbookBeforeClose( Excel.Workbook m_objBooks, ref bool _Cancel )     {       MessageBox.Show("保存完毕！");     }     /// <summary>     /// 将图片插入到指定的单元格位置。     /// 注意：图片必须是绝对物理路径     /// </summary>     /// <param name="RangeName">单元格名称，例如：B4</param>     /// <param name="PicturePath">要插入图片的绝对路径。</param>     public void InsertPicture( string RangeName, string PicturePath )     {       m_objRange = m_objSheet.get_Range(RangeName, m_objOpt);       m_objRange.Select();       Excel.Pictures pics = (Excel.Pictures)m_objSheet.Pictures(m_objOpt);       pics.Insert(PicturePath, m_objOpt);     }     /// <summary>     /// 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。     /// 注意：图片必须是绝对物理路径     /// </summary>     /// <param name="RangeName">单元格名称，例如：B4</param>     /// <param name="PicturePath">要插入图片的绝对路径。</param>     /// <param name="PictuteWidth">插入后，图片在Excel中显示的宽度。</param>     /// <param name="PictureHeight">插入后，图片在Excel中显示的高度。</param>     public void InsertPicture( string RangeName, string PicturePath, float PictuteWidth, float PictureHeight )     {       m_objRange = m_objSheet.get_Range(RangeName, m_objOpt);       m_objRange.Select();       float PicLeft, PicTop;       PicLeft = Convert.ToSingle(m_objRange.Left);       PicTop = Convert.ToSingle(m_objRange.Top);       //参数含义：       //图片路径       //是否链接到文件       //图片插入时是否随文档一起保存       //图片在文档中的坐标位置（单位：points）       //图片显示的宽度和高度（单位：points）       //参数详细信息参见：http://msdn2.microsoft.com/zh-cn/library/aa221765(office.11).aspx       m_objSheet.Shapes.AddPicture(PicturePath, Microsoft.Office.Core.MsoTriState.msoFalse, Microsoft.Office.Core.MsoTriState.msoTrue, PicLeft, PicTop, PictuteWidth, PictureHeight);     }     /// <summary>     /// 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。     /// </summary>     /// <param name="OutputFilePath">要保存成的文件的全路径。</param>     public void SaveFile( string OutputFilePath )     {       m_objBook.SaveAs(OutputFilePath, m_objOpt, m_objOpt,         m_objOpt, m_objOpt, m_objOpt, Excel.XlSaveAsAccessMode.xlNoChange,         m_objOpt, m_objOpt, m_objOpt, m_objOpt, m_objOpt);       this.Close();     }     /// <summary>     /// 关闭应用程序     /// </summary>     private void Close( )     {       m_objBook.Close(false, m_objOpt, m_objOpt);       m_objExcel.Quit();     }     /// <summary>     /// 释放所引用的COM对象。注意：这个过程一定要执行。     /// </summary>     public void Dispose( )     {       ReleaseObj(m_objSheets);       ReleaseObj(m_objBook);       ReleaseObj(m_objBooks);       ReleaseObj(m_objExcel);       System.GC.Collect();       System.GC.WaitForPendingFinalizers();     }     /// <summary>     /// 释放对象，内部调用     /// </summary>     /// <param name="o"></param>     private void ReleaseObj( object o )     {       try       {         System.Runtime.InteropServices.Marshal.ReleaseComObject(o);       }       catch { }       finally { o = null; }     }     private Excel.Application m_objExcel = null;     private Excel.Workbooks m_objBooks = null;     private Excel._Workbook m_objBook = null;     private Excel.Sheets m_objSheets = null;     private Excel._Worksheet m_objSheet = null;     private Excel.Range m_objRange = null;     private object m_objOpt = System.Reflection.Missing.Value;   } }