Excel在vc中怎么操作单元格的字体、颜色、加线框（和异常的抛出）

最新推荐文章于 2023-03-08 10:42:53 发布

JiangRB

最新推荐文章于 2023-03-08 10:42:53 发布

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CC 4.0 BY-SA版权

文章标签： excel application microsoft books border exception

本文链接：https://blog.youkuaiyun.com/JiangRB/article/details/3945413

这篇博客详细介绍了如何在VC++环境中使用MFC和Automation来操作Excel，包括创建Excel应用、打开工作簿、选择工作表、设置单元格的字体、颜色以及边框样式。通过示例代码展示了如何处理异常，如COleException和COleDispatchException。

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///////////////////////////////////////////////////////////////////////////////////////
//change cell font of Excel
///////////////////////////////////////////////////////////////////////////////////////
void CC2Dlg::OnOK()
{//HOWTO: Create Automation Project Using MFC and a Type Library Q178749
//change font of a Cell in excel
try
{
_Application app; // app is an _Application object.
_Workbook book; // More object declarations.
_Worksheet sheet;
Workbooks books;
Worksheets sheets;
Range range; // Used for Microsoft Excel 97 components.
LPDISPATCH lpDisp; // Often reused variable.
COleVariant
covTrue((short)TRUE),
covFalse((short)FALSE),
covOptional((long)DISP_E_PARAMNOTFOUND, VT_ERROR);
if(!app.CreateDispatch("Excel.Application"))
{
AfxMessageBox("Couldn't CreateDispatch() for Excel");
return;
}
app.SetVisible(TRUE);
lpDisp = app.GetWorkbooks(); // Get an IDispatch pointer.
ASSERT(lpDisp);
books.AttachDispatch(lpDisp); // Attach the IDispatch pointer
// to the books object.
lpDisp = books.Open("C://temp//book1.xls", // Test.xls is a workbook.
covOptional, covOptional, covOptional, covOptional, covOptional,
covOptional, covOptional, covOptional, covOptional, covOptional,
covOptional, covOptional, covOptional, covOptional ); // Return Workbook's IDispatch
// pointer.
book.AttachDispatch( lpDisp );
lpDisp = book.GetSheets();
ASSERT(lpDisp);
sheets.AttachDispatch(lpDisp);
// Get sheet #1 and attach the IDispatch pointer to your sheet
// object.
lpDisp = sheets.GetItem( COleVariant((short)(1)) );
ASSERT(lpDisp);
sheet.AttachDispatch(lpDisp);
lpDisp = sheet.GetRange(COleVariant("B3"), COleVariant("b3"));
range.AttachDispatch(lpDisp);
range.SetNumberFormat(COleVariant("@"));
range.SetItem(COleVariant((long)(1)),COleVariant((long)(1)),COleVariant(LPCTSTR("000666")));
Font newfont;
lpDisp=range.GetFont();
newfont.AttachDispatch(lpDisp);
newfont.SetName(COleVariant("宋体"));
newfont.SetSize(COleVariant((long)24));
newfont.ReleaseDispatch();
// Release dispatch pointers.
range.ReleaseDispatch();
sheet.ReleaseDispatch();
// This is not really necessary because
// the default second parameter of AttachDispatch releases
// when the current scope is lost.

} // End of processing.

catch(COleException *e)
{
char buf[1024]; // For the Try...Catch error message.
sprintf(buf, "COleException. SCODE: %08lx.", (long)e->m_sc);
::MessageBox(NULL, buf, "COleException", MB_SETFOREGROUND | MB_OK);
}
catch(COleDispatchException *e)
{
char buf[1024]; // For the Try...Catch error message.
sprintf(buf,
"COleDispatchException. SCODE: %08lx, Description: /"%s/".",
(long)e->m_wCode,(LPSTR)e->m_strDescription.GetBuffer(512));
::MessageBox(NULL, buf, "COleDispatchException",
MB_SETFOREGROUND | MB_OK);
}
catch(...)
{
::MessageBox(NULL, "General Exception caught.", "Catch-All",
MB_SETFOREGROUND | MB_OK);
}
CDialog::OnOK();
}
/////////////////////////////////////////////////////////////////////
//change font color of a Cell in excel, change cell background color, set border
/////////////////////////////////////////////////////////////////////
void CCellcolorDlg::OnOK()
{//HOWTO: Create Automation Project Using MFC and a Type Library Q178749
//change font color of a Cell in excel, change cell background color, set border
//Do not forget to call AfxOleInit();
try
{
_Application app; // app is an _Application object.
_Workbook book; // More object declarations.
_Worksheet sheet;
Workbooks books;
Worksheets sheets;
Range range; // Used for Microsoft Excel 97 components.
LPDISPATCH lpDisp; // Often reused variable.
COleVariant
covTrue((short)TRUE),
covFalse((short)FALSE),
covOptional((long)DISP_E_PARAMNOTFOUND, VT_ERROR);
if(!app.CreateDispatch("Excel.Application"))
{
AfxMessageBox("Couldn't CreateDispatch() for Excel");
return;
}
app.SetVisible(TRUE);
lpDisp = app.GetWorkbooks(); // Get an IDispatch pointer.
ASSERT(lpDisp);
books.AttachDispatch(lpDisp); // Attach the IDispatch pointer
// to the books object.
lpDisp = books.Open("C://temp//book1.xls", // Test.xls is a workbook.
covOptional, covOptional, covOptional, covOptional, covOptional,
covOptional, covOptional, covOptional, covOptional, covOptional,
covOptional, covOptional, covOptional, covOptional ); // Return Workbook's IDispatch
// pointer.
book.AttachDispatch( lpDisp );
lpDisp = book.GetSheets();
ASSERT(lpDisp);
sheets.AttachDispatch(lpDisp);
// Get sheet #1 and attach the IDispatch pointer to your sheet
// object.
lpDisp = sheets.GetItem( COleVariant((short)(1)) );
ASSERT(lpDisp);
sheet.AttachDispatch(lpDisp);
lpDisp = sheet.GetRange(COleVariant("B3"), COleVariant("b3"));
range.AttachDispatch(lpDisp);
// set number format
// range.SetNumberFormat(COleVariant("@"));
// range.SetItem(COleVariant((long)(1)),COleVariant((long)(1)),COleVariant(LPCTSTR("000666")));
// set cell font here
Font newfont;
lpDisp=range.GetFont();
newfont.AttachDispatch(lpDisp);
//newfont.SetName(COleVariant("宋体"));
//newfont.SetSize(COleVariant((long)24));
newfont.SetColorIndex(COleVariant((short)3));//use VBA to see index value of a certain color
newfont.ReleaseDispatch();

//set background color
lpDisp=range.GetInterior();
Interior cellinterior;
cellinterior.AttachDispatch(lpDisp);
cellinterior.SetColorIndex(COleVariant((short)6));//use VBA to see index value of a certain color
cellinterior.ReleaseDispatch();
// Set border
//xlDiagonalDown =5 xlDiagonalUp=6 xlEdgeLeft=7
//xlNone = -4142 xlContinuous=1 xlThin=2 xlAutomatic=-4105
//xlEdgeTop =8 xlEdgeBottom =9 xlEdgeRight=10
lpDisp = range.GetBorders();
Borders bds;
bds.AttachDispatch(lpDisp);
Border bd;
lpDisp = bds.GetItem(8);
bd.AttachDispatch(lpDisp);
bd.SetLineStyle(COleVariant((short)1));

// // Release dispatch pointers.
range.ReleaseDispatch();
sheet.ReleaseDispatch();
// This is not really necessary because
// the default second parameter of AttachDispatch releases
// when the current scope is lost.

} // End of processing.

catch(COleException *e)
{
char buf[1024]; // For the Try...Catch error message.
sprintf(buf, "COleException. SCODE: %08lx.", (long)e->m_sc);
::MessageBox(NULL, buf, "COleException", MB_SETFOREGROUND | MB_OK);
}
catch(COleDispatchException *e)
{
char buf[1024]; // For the Try...Catch error message.
sprintf(buf,
"COleDispatchException. SCODE: %08lx, Description: /"%s/".",
(long)e->m_wCode,(LPSTR)e->m_strDescription.GetBuffer(512));
::MessageBox(NULL, buf, "COleDispatchException",
MB_SETFOREGROUND | MB_OK);
}
catch(...)
{
::MessageBox(NULL, "General Exception caught.", "Catch-All",
MB_SETFOREGROUND | MB_OK);
}
CDialog::OnOK();
}