Question

I want to do the moral equivalent of the following VBA code:

For Each col In Worksheets('Sheet1').Columns     # do stuff Next col 

I have generated MFC wrappers for the Excel type library that get me this far (the generated types all derive from COleDispatchDriver:

CApplication app; app.CreateDispatch( clsid, e );  CWorkbooks  wbks( app.get_Workbooks() ); CWorkbook   book( wbks.Open( filename, /* optional args */ ) ); CRange      cols( app.get_Columns() ); long        numCols = cols.get_Count(); 

and from there I’m stuck. It looks like I can sort of iterate over cells using Range::get_Item( rowid, colid ), and then get the column from the cell, but I was looking for a more direct translation of the above loop.

(EDIT) Clarification: I don’t actually care about the individual cells. My goal is to determine which columns have width 0 (are hidden) and delete them from the worksheet.

Answer 1

I assume that you’re trying to traverse all the cells in the spreadsheet. You can get the active worksheet’s ‘all cells’ range, and loop through its rows and columns :

CSheets sheets = book.get_WorkSheets(); CWorkSheet sheet = sheets.get_ActiveSheet(); Range cells = sheet.get_Cells();  int nRows = cells.get_Rows().get_Count(); int nCols = cells.get_Columns().get_Count();  for (int i = 0; i <= nRows; i++)     {     for (int j = 0; j <= nCols; j++)         {         Range cell = cells.get_Item(i+1,j+1);         //Do stuff with individual cell         }      } 

EDIT: In response to OP clarification:

This will probably do what you’re looking for:

CSheets sheets = book.get_WorkSheets(); CWorkSheet sheet = sheets.get_ActiveSheet(); Range cols= sheet.get_Columns(); int nCols = cols.get_Count();  for (int i = nCols; i > 0; i--)     {              Range topCellOfCol = cells.get_Item(1, i);     Range entireCol = topCellOfCol.get_EntireColumn();     if (entireCol.get_Hidden())          entireCol.Delete( xlShiftToLeft );             }