[Mono-bugs] [Bug 531591] TableLayoutPanel.SetColumnSpan does not display all cells with ColumnStyle AutoSize

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http://bugzilla.novell.com/show_bug.cgi?id=531591

User timotheus.pokorra at gmail.com added comment
http://bugzilla.novell.com/show_bug.cgi?id=531591#c3





--- Comment #3 from Timotheus Pokorra <timotheus.pokorra at gmail.com>  2009-08-24 01:11:45 MDT ---
I found several problems in my own patch.

#1 the same problem is for RowSpan. That is not considered in my patch.

#2 the line in my patch:
max_width = Math.Max (max_width, ctrl_width - avail_width);
should be
max_width = max_width + ctrl_width - avail_width;

#3 the problem does not only exist with empty columns as described above, but
also exists if you have this situation:

|very long control spanning 2 columns|
|smallercontrol|anothersmallctrl|

In the current implementation of Mono 2.4, the layout would look like this:

|very long control spanning 2 co|
|smallercontrol|anothersmallctrl|

#4 even when I have used my fix from #2 in the patch, this situation still
looks strange:

|very long control spanning 2 columns|anotherctrl|
|smallercontrol|anothersmallctrl||

will now look like this with my patch:
|very long control spanning 2 columns|anotherctrl|
|smallercontrol     |anothersmallctrl|           |

where as in MS.net it looks like this:
|very long control spanning 2 columns|anotherctrl|
|smallercontrol|anothersmallctrl     |           |

I hope this analysis helps to make the TableLayoutPanel even better, and
someone clever finds a good algorithm to solve it!

Thanks,
  Timo

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