MFC之CListCtrl导出excel

转自：http://blog.csdn.net/qivan/article/details/7599924

 

代码编译会出现错误，修改：双击提示，在DialogBox（）前加下划线，就可以了

CListCtrl控件导出excel大概步骤如下：

 

1.首先打开vs2010,建一个项目（ExportExcel）,建立完后点击右键，添加--类--MFC--TypeLib中的MFC类，到该页面点添加如下：

2.点添加完后，注意下，找到相关头文件，注释红色那行

//#import "D:\\Program Files\\Microsoft Office\\OFFICE11\\EXCEL.EXE" no_namespace
// CWorkbook 包装类

class CWorkbook : public COleDispatchDriver
{
public:
 CWorkbook(){} // 调用 COleDispatchDriver 默认构造函数
 CWorkbook(LPDISPATCH pDispatch) : COleDispatchDriver(pDispatch) {}
 CWorkbook(const CWorkbook& dispatchSrc) : COleDispatchDriver(dispatchSrc) {}

 

3.注释完后，把上面添加的类的头文件加到你要实现导出excel功能的类中，如下：

#include "CApplication.h"
#include "CRange.h"
#include "CWorkbooks.h"
#include "CWorksheets.h"
#include "CWorkbook.h"
#include "CWorksheet.h"

4.实现主要代码如下：

 static void   GetCellName(int nRow, int nCol, CString &strName) {     CString strRow;     char cCell = (char)('A' + nCol - 1);     strName.Format(_T("%c"), cCell);     strRow.Format(_T( "%d "), nRow);     strName += strRow; }


//导出
void Cimportexcel2Dlg::OnBnClickedButton1()
{
 CFileDialog FileDialog(FALSE,L"xls",NULL,OFN_HIDEREADONLY|OFN_OVERWRITEPROMPT, _T("Microsoft Excel 2000(*.xls)|*.xls|所有文件(*.*)"),this);
 if(FileDialog.DoModal()!=IDOK)
 {
  return;
 }
 CString cStrFile=FileDialog.GetPathName();  //选择保存路径名称

 if(::PathFileExists(cStrFile))
 DeleteFile(cStrFile);

 //CString cStrFile = _T("E:\\myexcel.xls");
 COleVariant covTrue((short)TRUE),covFalse((short)FALSE),covOptional((long)DISP_E_PARAMNOTFOUND,VT_ERROR);

 CApplication app; //Excel程序
 CWorkbooks books; //工作簿集合
 CWorkbook book;  //工作表
 CWorksheets sheets;  //工作簿集合
 CWorksheet sheet; //工作表集合
 CRange range; //使用区域

 CoUninitialize();

 book.PrintPreview(_variant_t(false));
 if(CoInitialize(NULL)==S_FALSE)
 {
  MessageBox(L"初始化COM支持库失败！");
  return;
 }

 if(!app.CreateDispatch(_T("Excel.Application"))); //创建IDispatch接口对象
 {
  //MessageBox(_T("Error!"));

 }


 books = app.get_Workbooks();
 book = books.Add(covOptional);


 sheets = book.get_Worksheets();
 sheet = sheets.get_Item(COleVariant((short)1));  //得到第一个工作表

 CHeaderCtrl   *pmyHeaderCtrl= m_list.GetHeaderCtrl(); //获取表头

    int   m_cols   = pmyHeaderCtrl-> GetItemCount(); //获取列数
    int   m_rows = m_list.GetItemCount();  //获取行数


 TCHAR     lpBuffer[256];

 HDITEM   hdi; //This structure contains information about an item in a header control. This structure has been updated to support header item images and order values.
    hdi.mask   =   HDI_TEXT;
    hdi.pszText   =   lpBuffer;
    hdi.cchTextMax   =   256;

    CString   colname;
    CString strTemp;

 int   iRow,iCol;
 for(iCol=0;   iCol //将列表的标题头写入EXCEL
 {
  GetCellName(1 ,iCol + 1, colname); //(colname就是对应表格的A1,B1,C1,D1)

  range   =   sheet.get_Range(COleVariant(colname),COleVariant(colname));

  pmyHeaderCtrl-> GetItem(iCol,   &hdi); //获取表头每列的信息

  range.put_Value2(COleVariant(hdi.pszText));  //设置每列的内容

  int   nWidth   =   m_list.GetColumnWidth(iCol)/6;

  //得到第iCol+1列
  range.AttachDispatch(range.get_Item(_variant_t((long)(iCol+1)),vtMissing).pdispVal,true);

  //设置列宽
  range.put_ColumnWidth(_variant_t((long)nWidth));

    }

  range   =   sheet.get_Range(COleVariant( _T("A1 ")),   COleVariant(colname));

  range.put_RowHeight(_variant_t((long)50));//设置行的高度


  range.put_VerticalAlignment(COleVariant((short)-4108));//xlVAlignCenter   =   -4108

  COleSafeArray   saRet; //COleSafeArray类是用于处理任意类型和维数的数组的类
  DWORD   numElements[]={m_rows,m_cols};       //行列写入数组
  saRet.Create(VT_BSTR,   2,   numElements); //创建所需的数组

  range = sheet.get_Range(COleVariant( _T("A2 ")),covOptional); //从A2开始
  range = range.get_Resize(COleVariant((short)m_rows),COleVariant((short)m_cols)); //表的区域

  long   index[2];

  for(   iRow   =   1;   iRow   <=   m_rows;   iRow++)//将列表内容写入EXCEL
  {
   for   (   iCol   =   1;   iCol   <=   m_cols;   iCol++)
   {
     index[0]=iRow-1;
     index[1]=iCol-1;

     CString   szTemp;

     szTemp=m_list.GetItemText(iRow-1,iCol-1); //取得m_list控件中的内容

     BSTR   bstr   =   szTemp.AllocSysString(); //The AllocSysString method allocates a new BSTR string that is Automation compatible

     saRet.PutElement(index,bstr); //把m_list控件中的内容放入saRet

     SysFreeString(bstr);
   }
  }



    range.put_Value2(COleVariant(saRet)); //将得到的数据的saRet数组值放入表格


 book.SaveCopyAs(COleVariant(cStrFile)); //保存到cStrFile文件
 book.put_Saved(true);



 books.Close();

 //

 book.ReleaseDispatch();
 books.ReleaseDispatch();

 app.ReleaseDispatch();
 app.Quit();
}

//导出
void Cimportexcel2Dlg::OnBnClickedButton1()
{
 CFileDialog FileDialog(FALSE,L"xls",NULL,OFN_HIDEREADONLY|OFN_OVERWRITEPROMPT, _T("Microsoft Excel 2000(*.xls)|*.xls|所有文件(*.*)"),this); 
 if(FileDialog.DoModal()!=IDOK) 
 {
  return; 
 }
 CString cStrFile=FileDialog.GetPathName();  //选择保存路径名称

 if(::PathFileExists(cStrFile)) 
 DeleteFile(cStrFile); 

 //CString cStrFile = _T("E:\\myexcel.xls");
 COleVariant covTrue((short)TRUE),covFalse((short)FALSE),covOptional((long)DISP_E_PARAMNOTFOUND,VT_ERROR);

 CApplication app; //Excel程序
 CWorkbooks books; //工作簿集合
 CWorkbook book;  //工作表
 CWorksheets sheets;  //工作簿集合
 CWorksheet sheet; //工作表集合
 CRange range; //使用区域
 
 CoUninitialize();
 
 book.PrintPreview(_variant_t(false));
 if(CoInitialize(NULL)==S_FALSE) 
 {
  MessageBox(L"初始化COM支持库失败！");
  return;
 }

 if(!app.CreateDispatch(_T("Excel.Application"))); //创建IDispatch接口对象
 {
  //MessageBox(_T("Error!"));
 
 }

 
 books = app.get_Workbooks();
 book = books.Add(covOptional);
 

 sheets = book.get_Worksheets();
 sheet = sheets.get_Item(COleVariant((short)1));  //得到第一个工作表

 CHeaderCtrl   *pmyHeaderCtrl= m_list.GetHeaderCtrl(); //获取表头

    int   m_cols   = pmyHeaderCtrl-> GetItemCount(); //获取列数
    int   m_rows = m_list.GetItemCount();  //获取行数


 TCHAR     lpBuffer[256];    

 HDITEM   hdi; //This structure contains information about an item in a header control. This structure has been updated to support header item images and order values.
    hdi.mask   =   HDI_TEXT;
    hdi.pszText   =   lpBuffer;
    hdi.cchTextMax   =   256; 

    CString   colname;
    CString strTemp;

 int   iRow,iCol;
 for(iCol=0;   iCol  GetItem(iCol,   &hdi); //获取表头每列的信息

  range.put_Value2(COleVariant(hdi.pszText));  //设置每列的内容

  int   nWidth   =   m_list.GetColumnWidth(iCol)/6; 

  //得到第iCol+1列   
  range.AttachDispatch(range.get_Item(_variant_t((long)(iCol+1)),vtMissing).pdispVal,true);   

  //设置列宽  
  range.put_ColumnWidth(_variant_t((long)nWidth));

    } 

  range   =   sheet.get_Range(COleVariant( _T("A1 ")),   COleVariant(colname)); 

  range.put_RowHeight(_variant_t((long)50));//设置行的高度 


  range.put_VerticalAlignment(COleVariant((short)-4108));//xlVAlignCenter   =   -4108 

  COleSafeArray   saRet; //COleSafeArray类是用于处理任意类型和维数的数组的类
  DWORD   numElements[]={m_rows,m_cols};       //行列写入数组
  saRet.Create(VT_BSTR,   2,   numElements); //创建所需的数组

  range = sheet.get_Range(COleVariant( _T("A2 ")),covOptional); //从A2开始
  range = range.get_Resize(COleVariant((short)m_rows),COleVariant((short)m_cols)); //表的区域

  long   index[2];  

  for(   iRow   =   1;   iRow   <=   m_rows;   iRow++)//将列表内容写入EXCEL 
  { 
   for   (   iCol   =   1;   iCol   <=   m_cols;   iCol++)  
   { 
     index[0]=iRow-1; 
     index[1]=iCol-1; 

     CString   szTemp; 

     szTemp=m_list.GetItemText(iRow-1,iCol-1); //取得m_list控件中的内容

     BSTR   bstr   =   szTemp.AllocSysString(); //The AllocSysString method allocates a new BSTR string that is Automation compatible

     saRet.PutElement(index,bstr); //把m_list控件中的内容放入saRet

     SysFreeString(bstr);
   } 
  }  

    
 
    range.put_Value2(COleVariant(saRet)); //将得到的数据的saRet数组值放入表格


 book.SaveCopyAs(COleVariant(cStrFile)); //保存到cStrFile文件
 book.put_Saved(true);

 

 books.Close();
 
 //
 
 book.ReleaseDispatch();
 books.ReleaseDispatch(); 

 app.ReleaseDispatch();
 app.Quit();
}

5.添加完，代码编译会出现错误，修改：双击提示，在DialogBox（）前加下划线，就可以了

6.重新编译，OK