这几天做C#向Excel插入数据,其中有插入图片的需求,经试验,下面2种方法都可以实现C#向Excel插入数据,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.InsertPictureToExcelipt=
newMengXianhui.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:
- usingSystem;
- usingSystem.Windows.Forms;
- usingExcel=Microsoft.Office.Interop.Excel;
- namespaceMengXianhui.Utility.ExcelReport
- {
- classInsertPictureToExcel
- {
- ///<summary>
- ///打开没有模板的操作。
- ///</summary>
- publicvoidOpen()
- {
- this.Open(String.Empty);
- }
- ///<summary>
- ///功能:实现Excel应用程序的打开
- ///</summary>
- ///<paramnameparamname="TemplateFilePath">模板文件物理路径</param>
- publicvoidOpen(stringTemplateFilePath)
- {
- //打开对象
- m_objExcel=newExcel.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(Office2003),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+=newExcel.
AppEvents_WorkbookBeforeCloseEventHandler(m_objExcel_WorkbookBeforeClose);- }
- privatevoidm_objExcel_WorkbookBeforeClose(Excel.Workbookm_objBooks,refbool_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>
- ///<paramnameparamname="RangeName">单元格名称,例如:B4</param>
- ///<paramnameparamname="PicturePath">要插入图片的绝对路径。</param>
- publicvoidInsertPicture(stringRangeName,stringPicturePath)
- {
- m_objRange=m_objSheet.get_Range(RangeName,m_objOpt);
- m_objRange.Select();
- Excel.Picturespics=(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>
- ///<paramnameparamname="RangeName">单元格名称,例如:B4</param>
- ///<paramnameparamname="PicturePath">要插入图片的绝对路径。</param>
- ///<paramnameparamname="PictuteWidth">插入后,图片在Excel中显示的宽度。</param>
- ///<paramnameparamname="PictureHeight">插入后,图片在Excel中显示的高度。</param>
- publicvoidInsertPicture
(stringRangeName,stringPicturePath,floatPictuteWidth,floatPictureHeight)- {
- m_objRange=m_objSheet.get_Range(RangeName,m_objOpt);
- m_objRange.Select();
- floatPicLeft,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>
- ///<paramnameparamname="OutputFilePath">要保存成的文件的全路径。</param>
- publicvoidSaveFile(stringOutputFilePath)
- {
- 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>
- privatevoidClose()
- {
- 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>
- publicvoidDispose()
- {
- 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>
- ///<paramnameparamname="o"></param>
- privatevoidReleaseObj(objecto)
- {
- try
- {
- System.Runtime.InteropServices.Marshal.ReleaseComObject(o);
- }
- catch{}
- finally{o=null;}
- }
- privateExcel.Applicationm_objExcel=null;
- privateExcel.Workbooksm_objBooks=null;
- privateExcel._Workbookm_objBook=null;
- privateExcel.Sheetsm_objSheets=null;
- privateExcel._Worksheetm_objSheet=null;
- privateExcel.Rangem_objRange=null;
- privateobjectm_objOpt=System.Reflection.Missing.Value;
- }
- }
以上介绍C#向Excel插入数据
【编辑推荐】