I am embedding a 2D Line Chart, XamChart in a user control, which builds fine, but when I embed that control in another - the parent control and all subsequent parent controls fail in Expression Blend with a 'The enumerator is not valid because the collection changed.' error.
I'm using code directly copied from the feature browser, with relative links fixed, and am assigning datapoints in the C# code behind.
If I build the project from Visual Studio, the project will run and the chart works correctly. But I can not edit any of the parent controls in Expression blend.
I found only one post that touched on this issue:
http://forums.infragistics.com/forums/p/24390/100889.aspx#100889
..and no resolution was ever posted.
Has this issue been looked into? Are there any resolutions?
This exception looks like an old issue to me. What version and the build are you using? I've just checked the 2D Line chart sample using version 10.1 (10.1.20101.2004 latest service release) and Expression Blend 3 but was not able to duplicate the exception.
Please, check out the attached sample project and let me know if you can duplicate the issue with it.
Sorry, I've lost significant development time on this project trying to hunt down bugs or documentation that wasn't available online and then spend days waiting for responses to forum posts.
I found the information for downloading a service release and am doing that now.
I can't build the sample application, I get a 'no license information found' error..
We're definitely using an older version, from 2009.
Are you saying we have to upgrade to fix this bug? Do we have to purchase a new license in order to get the software we already purchased to work correctly?