Hi,We have a client using our software. They recently upgraded our software, which meant the version of Infragistics used changed from 13.1.20131.2116 to 15.1.20151.2132. Since upgrading, whenever they run the software on a virtual application server (Windows 2K8R2), any forms using an UltraExpandableGroupBox are frequently displaying with a large red cross, like so:
Do you have any idea what could be causing this? I have looked at the release notes for the latest 15.1 hotfix, but there don't appear to be any relevant fixes.
Thanks,Campbell
Hello Campbell,
Thank you for reaching out. Have you managed to replicate this behavior on a consistent basis? As you may already know the red "X" occurs any time a call is made to a control from another "Background" thread or an exception occurs inside the OnPaint method of a control. Since the controls have been around so long and are so well-used and therefore well-tested, we rarely find bugs in the painting code any more. But it can happen.
If you can reproduce this issue in a small sample project, please post it here and I'll begin to test it immediately. Thanks in advance.
Hi Michael,I feared you'd ask me for a sample. No, we haven't been able to reproduce either - it only occurs on our client's virtual setup, so I suspect it's something to do with the way they have this set up, perhaps not specifying enough resources somewhere. That said, I can't understand why it's an issue in 15.1, but it wasn't in 13.1.Further to this, it only affects the Office2007 theme. If they switch to a different theme (e.g. Visual Studio 2005) then they do not get the issue.Thanks,Campbell