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Home » U++ Library support » ArrayCtrl, HeaderCtrl & GridCtrl » GridCtrl problem
GridCtrl problem [message #21002] Sat, 25 April 2009 00:26 Go to next message
koldo is currently offline  koldo
Messages: 3432
Registered: August 2008
Senior Veteran
Hello unodgs

I like GridCtrl but I have sometimes problems.

I have not found the way to reproduce them but I have taken some screenshots that I enclose you. hitems[] size is 4 and hcol is 5 so when doing hitems[hcol] an exception is thrown.

Thank you
Koldo
  • Attachment: Doc1.pdf
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Best regards
Iñaki

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Re: GridCtrl problem [message #21003 is a reply to message #21002] Sat, 25 April 2009 10:28 Go to previous messageGo to next message
unodgs is currently offline  unodgs
Messages: 1367
Registered: November 2005
Location: Poland
Ultimate Contributor
Thanks. I'll try to find it. Are you able to tell what are you doing when grid crashes?

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Re: GridCtrl problem [message #21015 is a reply to message #21003] Sat, 25 April 2009 17:12 Go to previous messageGo to next message
koldo is currently offline  koldo
Messages: 3432
Registered: August 2008
Senior Veteran
Hello unodgs

It is difficult for me to find the root cause. I have got the exception in three places, always trying to access hitems[] elems over its scope and always when moving the mouse over the Grid time after the Grid is filled with data.

I suppose this is circumstantial, but I usually use grids with few rows but hundreds of columns.

I have began to enclose the code with problems with 
	if (hitems.GetCount() > hcol) {
	...
	}
This is not the solution but it lets me follow.

Best regards
Koldo
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Best regards
Iñaki

[Updated on: Sat, 25 April 2009 23:06]

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Re: GridCtrl problem [message #21351 is a reply to message #21015] Thu, 14 May 2009 13:56 Go to previous messageGo to next message
unodgs is currently offline  unodgs
Messages: 1367
Registered: November 2005
Location: Poland
Ultimate Contributor
koldo wrote on Sat, 25 April 2009 11:12

Hello unodgs

It is difficult for me to find the root cause. I have got the exception in three places, always trying to access hitems[] elems over its scope and always when moving the mouse over the Grid time after the Grid is filled with data.

I suppose this is circumstantial, but I usually use grids with few rows but hundreds of columns.

I have began to enclose the code with problems with 
	if (hitems.GetCount() > hcol) {
	...
	}
This is not the solution but it lets me follow.

Best regards
Koldo

This is workaround. The problem is hcol should never point to not existing column. I guess the problem is in GetMouseCol. Could you pleas post workable test case similar to your real app?

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Re: GridCtrl problem [message #21353 is a reply to message #21002] Thu, 14 May 2009 16:10 Go to previous message
koldo is currently offline  koldo
Messages: 3432
Registered: August 2008
Senior Veteran
Hello unodgs

I will try it. Now is not a good time as I am using the program with other people so I do not want it to crash.

But of course the way to solve the problem is to begin with preparing a test case.

Best regards
Koldo

Best regards
Iñaki

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