mfc中将list内容保存到Excel中出错
mfc中将list内容保存到Excel中报错
我按照 http://blog.csdn.net/qivan/article/details/7599924 中的方法,运行出来各种报错。。。
我按照 http://blog.csdn.net/qivan/article/details/7599924 中的方法,运行出来各种报错。。。
// TODO: 在此添加控件通知处理程序代码
//导出
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("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("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!"));
return;
}
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_LEDList.GetHeaderCtrl(); //获取表头
int m_cols = pmyHeaderCtrl-> GetItemCount(); //获取列数
int m_rows = m_LEDList.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 nListWidth;
int iRow,iCol;
for(iCol=0; iCol <m_cols; 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
nListWidth = m_LEDList.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)nListWidth));
}
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_LEDList.GetItemText(iRow-1,iCol-1); //取得m_LEDList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();