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Application crash with UltraWinSchedule.v5.3 displaying big red X
posted

I have a Vb.Net (build with Visual Studio 2003) Windows application using Infragistics UltraWinSchedule.v5.3.

It was working fine for years but recently my clients are reporting crashes with big red X displayed instead of the schedule.

It happens only when they install it on new computers. The schedule contains hundreds of appointments and it looks like the control is not able to draw the appointments seeing that fast as the application can load them, as when I put a millisecond of delay between each appointment add, it works fine most of the time.

 

 I know this version of Infragistics is not supported any more but if I have to upgrade I will have to migrate to .Net 2 (at least) which is not that easy – it is a big one and it’s been working fine for the past couple of years – why should I upgrade?

Does anyone have any ideas?