BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Excel Automation (count used rows for each used column)          BorlandTalk.com Forum Index -> C++ Builder (ActiveX) View previous topic :: View next topic   Author Message Sudesh Guest Posted: Thu Jan 06, 2005 3:14 pm    Post subject: Excel Automation (count used rows for each used column) Hello: How to count used rows of each column in a worksheet? I am able to count total used columns and rows using "CurrentRegion". Thanks, Sudesh Back to top BigStew Guest Posted: Thu Jan 06, 2005 4:24 pm    Post subject: Re: Excel Automation (count used rows for each used column) Use the Used_Range property of a WorkSheet; This routine counts the number of non-blank cells in the used range. Use this as an example. Stewart RangePtr Range = WS1->get_UsedRange(); RangePtr cols = Range->get_Columns(); RangePtr rows = Range->get_Rows(); int cellCount = 0; for (int i = 1; i < rows->Count+1; ++i) { for (int j = 1; j < cols->Count+1; ++j) { AnsiString a = TVariant(Range->get_Item(TVariant(i),TVariant(j))); if (!a.IsEmpty()) ++cellCount; } } ShowMessage(cellCount); "Sudesh" <sudeshc (AT) vfemail (DOT) net> wrote Quote: Hello: How to count used rows of each column in a worksheet? I am able to count total used columns and rows using "CurrentRegion". Thanks, Sudesh Back to top Sudesh Guest Posted: Thu Jan 06, 2005 5:23 pm    Post subject: Re: Excel Automation (count used rows for each used column) Hi: So there is no such direct property to give individual row count of a column? Counting Rows like this will waste a lot of time. Consider a case where the largest row count is say 64K but other columns are with very few rows. So for each column, iterating through 64K row cells will be too much time consuming!! Automation speed itself is very slow. Any other way? (I am using BCB3.0) Thanks, Sudesh Back to top Mike King Guest Posted: Thu Jan 06, 2005 6:33 pm    Post subject: Re: Excel Automation (count used rows for each used column) "Sudesh" <sudeshc (AT) vfemail (DOT) net> wrote Quote: Hi: So there is no such direct property to give individual row count of a column? Counting Rows like this will waste a lot of time. Consider a case where the largest row count is say 64K but other columns are with very few rows. So for each column, iterating through 64K row cells will be too much time consuming!! Automation speed itself is very slow. Any other way? (I am using BCB3.0) Thanks, Sudesh Yes, automation can be slow so to compensate for that try getting Excel to do more of the work for you. Excel is really good at number crunching so let it do and you can just get the results. So just do something like the following: 65536 - WorksheetFunction.CountBlank(column) Back to top Sudesh Guest Posted: Thu Jan 06, 2005 7:04 pm    Post subject: Re: Excel Automation (count used rows for each used column) Hi Mike: Whats the correct syntax fot this in BCB? I get error "method 'CountBlank' not supported..." with the following. int x = XLWorkSheet.OleFunction("CountBlank"); Thanks, Sudesh "Mike King" <emailMK (AT) excite (DOT) com> wrote Quote: So just do something like the following: 65536 - WorksheetFunction.CountBlank(column) Back to top Sudesh Guest Posted: Thu Jan 06, 2005 7:10 pm    Post subject: Re: Excel Automation (count used rows for each used column) Sorry i mean int x = XLWorkSheet.OleFunction("CountBlank",col); Back to top Mike King Guest Posted: Thu Jan 06, 2005 7:19 pm    Post subject: Re: Excel Automation (count used rows for each used column) "Sudesh" <sudeshc (AT) vfemail (DOT) net> wrote Quote: Sorry i mean int x = XLWorkSheet.OleFunction("CountBlank",col); I use BCB almost everyday and I use Excel quite often but when I try to get them to talk to one another I just start cry I cheat and write some VBA code and let it do most of the work. So in other words, I have no clue how to do it in BCB. Back to top Sudesh Guest Posted: Fri Jan 07, 2005 2:10 am    Post subject: Re: Excel Automation (count used rows for each used column) No cry for this anymore:-) int x = XL.OlePropertyGet("WorksheetFunction").OleFunction("CountBlank",XLRange) ; Thanks Mika for the clue. Sudesh Quote: I use BCB almost everyday and I use Excel quite often but when I try to get them to talk to one another I just start cry I cheat and write some VBA code and let it do most of the work. So in other words, I have no clue how to do it in BCB. Back to top Mike King Guest Posted: Fri Jan 07, 2005 2:45 pm    Post subject: Re: Excel Automation (count used rows for each used column) Do you know of a good article/tutorial of how to use IDispatch like you just did? "Sudesh" <sudeshc (AT) vfemail (DOT) net> wrote Quote: No cry for this anymore:-) int x = XL.OlePropertyGet("WorksheetFunction").OleFunction("CountBlank",XLRange) ; Thanks Mika for the clue. Sudesh I use BCB almost everyday and I use Excel quite often but when I try to get them to talk to one another I just start cry I cheat and write some VBA code and let it do most of the work. So in other words, I have no clue how to do it in BCB. Back to top Sudesh Guest Posted: Fri Jan 07, 2005 5:11 pm    Post subject: Re: Excel Automation (count used rows for each used column) Sorry, my knowledge of COM is also very limited. I hope some expert will post to help. Sudesh "Mike King" <emailMK (AT) excite (DOT) com> wrote Quote: Do you know of a good article/tutorial of how to use IDispatch like you just did? 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