So I have a winform application that is being used by about 100 people across 5 remote desktop servers 24 hours a day for the last few years.In that time I have seen this problem a handful of times but it seems to be happening more often to one user now.Typically I see this with users with multiple monitors.
In this case I had the user log out of the system, log back on and follow all the steps that led to the bug the first time but it is not reproducible for him.It seems to affect EVERY combo box in the entire application (and there are lots of screens).
I am using appstyling I'm not sure if that has anything to do with it. I have attached a screenshot.. it almost looks like the combobox is sizing to a negative width??
I have no idea where to start tracking this down but any suggestions are welcome!
Unfortunately, the issue is happening with a very recent version of the library (13.2.20132.2010).
Just today I upgraded to 13.2.20132.2023 but unless this is a bug that was fixed in the last month or so I am not hopeful this will solve it.
Greg
Hi,
What version of the controls are you using? It looks like the auto-sizing logic that determines the size of the dropdown thinks that there isn't enough room for the combo to display at the correct width. There was a bug in this logic that would sometimes get the wrong screen size when using a remote desktop connection, but that bug was fixed a couple years ago. So if you are using an old version of the controls, it might be worth upgrading or trying the latest service release.
The issue most recently happened earlier this week with 13.2.20132.2010 but have since upgraded to 13.2.20132.2023.This has been a problem however going back as long as I can remember .. to the 12.1 controls or earlier.
I do not think the resizable dropdown is a good solution as when the problem happens it affects every single dropdown in the entire application. It would be very tedious to resize every dropdown manually.. in fact it would be easier to log out and back on as they are doing now. Plus the most afflicted user is our General Manager. :) Is there some piece of code I could use to detect this condition and resize the combo box automatically? Or are you suggesting I add this style to confirm the sizing is indeed the problem?
Hello,
Could you please let me know which exactly version of Infragistics you are using.
Since this issue is hard reproducible have you consider to set DropDownResizeHandleStyle to DiagonalResize
http://help.infragistics.com/Help/Doc/WinForms/2012.2/CLR4.0/html/Infragistics4.Win.v12.2~Infragistics.Win.DropDownResizeHandleStyle.html
on this way if this happens the user will be able to resize the dropdown and to review the items in the dropdown.
I am waiting for your feedback.