C#向Excel报表中插入图片的2种方法

 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 
                 { 
                         /// /// 打开没有模板的操作。 
                         /// 
                         public void Open( ) 
                         { 
                                 this.Open(String.Empty); 
                         } 
                         /// /// 功能：实现Excel应用程序的打开 
                         /// /// 模板文件物理路径 
                         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！"); 
                         } 
                         /// /// 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 
                         /// /// 单元格名称，例如：B4 
                         /// 要插入图片的绝对路径。
                         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); 
                         } 
                         /// /// 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 
                         /// /// 单元格名称，例如：B4
                         /// 要插入图片的绝对路径。 
                         /// 插入后，图片在Excel中显示的宽度。 
                         /// 插入后，图片在Excel中显示的高度。 
                         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); 
                         } 
                         /// /// 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。 
                         /// /// 要保存成的文件的全路径。 
                         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(); 
                         } 
                         /// /// 关闭应用程序 
                         /// 
                         private void Close( ) 
                         { 
                                 m_objBook.Close(false, m_objOpt, m_objOpt); 
                                 m_objExcel.Quit(); 
                         } 
                         /// /// 释放所引用的COM对象。注意：这个过程一定要执行。 
                         /// 
                         public void Dispose( ) 
                         { 
                                 ReleaseObj(m_objSheets); 
                                 ReleaseObj(m_objBook); 
                                 ReleaseObj(m_objBooks); 
                                 ReleaseObj(m_objExcel); 
                                 System.GC.Collect(); 
                                 System.GC.WaitForPendingFinalizers(); 
                         } 
                         /// /// 释放对象，内部调用 
                         /// /// 
                         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; 
                 } 
         }

运行结果：