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(SOLVED) Merge cells example bug?!

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Hi guys, I wanted to report a non-working example released with lazarus. This is the example to merge cells in TStringGrid. I have also attached the example, but if you compile and run mac (carbon) and double-click on a blank cell, it generates an exception in the DoEditorShow procedure. Does anyone know how to solve?

I am the author of this example, but don't have access to Mac/carbon, and thus cannot reproduce on Win.

Double-click behavior of the standard grid was not modified in this example. Does the bug also occur with a standard string grid? There is a comment in TCustomGrid.DoEditorShow regarding carbon, but it has been there since at least version 1.6.4.

What exactly is the error message? Can you provide a stack trace?

See if the images are clear enough.


Probably there is no editor. Modify TmcGrid.DoEditorShow like this and try again:

--- Code: Pascal  [+][-]window.onload = function(){var x1 = document.getElementById("main_content_section"); if (x1) { var x = document.getElementsByClassName("geshi");for (var i = 0; i < x.length; i++) { x[i].style.maxHeight='none'; x[i].style.height = Math.min(x[i].clientHeight+15,306)+'px'; x[i].style.resize = "vertical";}};} ---procedure TMCStringGrid.DoEditorShow;var  R: TRect;begin  inherited;  if goColSpanning in Options then begin    CalcCellExtent(Col, Row, R);    if Assigned(Editor) then   // <--- NEW      Editor.SetBounds(R.Left, R.Top, R.Right-R.Left-1, R.Bottom-R.Top-1);  end;end;


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