Seems to be a bug in several controls including the XamDataGrid, XamDataTree and XamOrgChart.
This bug shows up only in the Expression Blend (4) designer and can become cumbersome.
If one of the above mentioned controls (controls I have tested) are grouped within another container; the containers visibility is set to collapsed, clicking on the control in the objects and timeline toolbar displays the following exception:
InvalidOperationException: 'arrow' name cannot be found in the name scope of 'System.WIndows.Controls.ControlTemplate'.
The designer is forced to save his / her current progress, close the current design window, reopen the design window, set the visibility to visible, complete their work and reset the visibility to collapsed.
As you might imagine this can become quite a problem for designers needing to make simple corrections.
I have logged this with development under ID: 108053 and I have also created a support ticket on your behalf: CAS-88418-VD4VT7 and have linked the development issue to it, so that you can get automatically updated, when a Service Release containing the fix is available for download. You can get the new version from our website’s “My IG”, “My Keys & Downloads” tags: https://www.infragistics.com/Membership/Default.aspx?panel=Downloads#Downloads
You can also monitor the support ticket’s progress through the “My Support Activity” tag: https://www.infragistics.com/Membership/MySupport.aspx
This issue has been fixed in our latest internal builds and the fix will be included in the next service releases of 11.1, 11.2 and 12.1 which are scheduled for mid-May.
This issue is still happening in
Infragistics version 12.1.20121.1010
Microsoft Visual Studio Ultimate 2012Version 11.0.50727.1 RTMRELMicrosoft .NET FrameworkVersion 4.5.50709Installed Version: Ultimate
Got the hotfix and now it works... but you should have the hot fixes in a more prominent place on the web site.