Codejock Developer Community : CXTPReportControl::GetReportAreaRows: wrong result http://forum.codejock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Wed, 03 Jun 2026 18:22:54 +0000 Wed, 25 Oct 2023 11:31:45 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 forum.codejock.com/RSS_post_feed.asp?TID=19839 <![CDATA[Codejock Developer Community]]> http://forum.codejock.com/forum_images/codejock-logo.gif http://forum.codejock.com/ <![CDATA[CXTPReportControl::GetReportAreaRows: wrong result : FYI to duplicate the bug in GetReportAreaRows()...]]> http://forum.codejock.com/forum_posts.asp?TID=19839&PID=78808&title=cxtpreportcontrolgetreportarearows-wrong-result#78808 Author: franji1
Subject: 19839
Posted: 25 October 2023 at 11:31am

FYI to duplicate the bug in GetReportAreaRows() (or the bug could be in OnGetItemsCaptionMaxWidth, depending upon if GetReportAreaRows() behavior is actually "correct"),
stick the widest data (by far) in the last row of your RC in one of the columns.

View your RC with the last row NOT visible.  Resize Autosize the column, and it works correctly.  Scroll down so that this last row is visible.  Resize  Autosize that column again and it does not take into account the width of that last row.

It may only be an issue in virtual mode (the resize  autosize behavior, not the GetReportAreaRows issue)
]]> Wed, 25 Oct 2023 11:31:45 +0000 http://forum.codejock.com/forum_posts.asp?TID=19839&PID=78808&title=cxtpreportcontrolgetreportarearows-wrong-result#78808 <![CDATA[CXTPReportControl::GetReportAreaRows: wrong result : I &#034;overrode&#034; OnGetItemsCaptionMaxWidthint...]]> http://forum.codejock.com/forum_posts.asp?TID=19839&PID=78807&title=cxtpreportcontrolgetreportarearows-wrong-result#78807 Author: franji1
Subject: 19839
Posted: 25 October 2023 at 11:22am

I "overrode" OnGetItemsCaptionMaxWidth

int CMemViewReportCtrl::OnGetItemsCaptionMaxWidth(CDC* pDC, CXTPReportRows* pRows, CXTPReportColumn* pColumn, int nStartRow /* = 0 */, int nRowsCount /* = -1 */)
{
// OBOB in XTP in reporting # of visible rows (in virtual mode???)
if ((nRowsCount >= 0) /* && IsVirtualMode()*/ && (nStartRow >= 0))
{
// if I have 10 rows 0..9, the row count is still 10, not 9!
if (nRowsCount == (GetRows()->GetCount() - nStartRow - 1))
{
//HASSERT(false);
nRowsCount++;
}
}
const int nWidth = BASE_CLASS::OnGetItemsCaptionMaxWidth(pDC, pRows, pColumn, nStartRow, nRowsCount);
return nWidth;
}

]]> Wed, 25 Oct 2023 11:22:20 +0000 http://forum.codejock.com/forum_posts.asp?TID=19839&PID=78807&title=cxtpreportcontrolgetreportarearows-wrong-result#78807 <![CDATA[CXTPReportControl::GetReportAreaRows: wrong result : The code (GetReportAreaRows) appears...]]> http://forum.codejock.com/forum_posts.asp?TID=19839&PID=78806&title=cxtpreportcontrolgetreportarearows-wrong-result#78806 Author: franji1
Subject: 19839
Posted: 25 October 2023 at 10:55am

The code (GetReportAreaRows) appears to still be busted in 20.x

Maybe I do not understand what this method is supposed to do (why all that work without doing anything with it?)
]]> Wed, 25 Oct 2023 10:55:35 +0000 http://forum.codejock.com/forum_posts.asp?TID=19839&PID=78806&title=cxtpreportcontrolgetreportarearows-wrong-result#78806 <![CDATA[CXTPReportControl::GetReportAreaRows: wrong result : I just saw thatCXTPReportContr...]]> http://forum.codejock.com/forum_posts.asp?TID=19839&PID=78805&title=cxtpreportcontrolgetreportarearows-wrong-result#78805 Author: franji1
Subject: 19839
Posted: 25 October 2023 at 10:34am

I just saw that CXTPReportControl::OnGetItemsCaptionMaxWidth is virtual.  I can override it and fix it that way.

EDIT 13.3
int CXTPReportControl::GetReportAreaRows(int nStartRow, BOOL bMoveDown)
{
...
//return bMoveDown ? m_pRows->GetCount() - nStartRow : nStartRow;
return bMoveDown ? m_pRows->GetCount() - nStartRow - 1: nStartRow; //-this is better way!
}

The code looks WRONG.  It does all this work to determine what is the last row (in the local var i), yet the return statement does not take into account any of that work (the commented out return is theirs).

There should be an i in the return statement somewhere???
]]> Wed, 25 Oct 2023 10:34:15 +0000 http://forum.codejock.com/forum_posts.asp?TID=19839&PID=78805&title=cxtpreportcontrolgetreportarearows-wrong-result#78805 <![CDATA[CXTPReportControl::GetReportAreaRows: wrong result : (13.2.1) I just saw this behavior...]]> http://forum.codejock.com/forum_posts.asp?TID=19839&PID=78804&title=cxtpreportcontrolgetreportarearows-wrong-result#78804 Author: franji1
Subject: 19839
Posted: 25 October 2023 at 10:01am

(13.2.1)  I just saw this behavior in my implementation of a "Best Fit All" on my virtual report control.  If the last displayable row is the "widest" for a column, the Best Fit clips it (next "widest" is much narrower).  If I scroll down so that another (yet narrower) row is in the viewport for the control, the "Best Fit All" works as expected!

11 years later - not too late Handshake

I've been trying to fix it - thought it was in my code!
]]> Wed, 25 Oct 2023 10:01:29 +0000 http://forum.codejock.com/forum_posts.asp?TID=19839&PID=78804&title=cxtpreportcontrolgetreportarearows-wrong-result#78804 <![CDATA[CXTPReportControl::GetReportAreaRows: wrong result : Hi,I have some trouble to...]]> http://forum.codejock.com/forum_posts.asp?TID=19839&PID=68393&title=cxtpreportcontrolgetreportarearows-wrong-result#68393 Author: leo_12
Subject: 19839
Posted: 05 June 2012 at 8:18am

Hi,
 
I have some trouble to get the best fit column width of the tree column in an virtual mode ReportControl.
 
As documentation says, CXTPReportControl::GetReportAreaRows should return the number of currently visible rows between nStartRow and the bottom of the current view.
 
In my case I have 2 rows in large view so they are all visible. The function returns 1. Should the nStartRow be included in the result or not?
 
If not, then in CXTPReportControl::OnGetColumnDataBestFitWidth the result of GetReportAreaRows in the local variable nVisibleRows should be incremented by 1. Otherwise the width of the last item is not considered in the calculation of the width.

]]> Tue, 05 Jun 2012 08:18:31 +0000 http://forum.codejock.com/forum_posts.asp?TID=19839&PID=68393&title=cxtpreportcontrolgetreportarearows-wrong-result#68393