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                                  • Your example "How to bind scheduler to entity framework" works fine using the version in the sample (18.x).

                                    W‍hen I upgrade to 19.2, the application goes into "Break Mode" when trying to save a recurring appointment with the following error:

                                    System.InvalidOperationException: 'Operation is not valid due to the current state of the object.'

                                • Andrey Marten (DevExpress Support) 11.10.2019

                                  Hello Larry,

                                  I used the project from the T545436 example, but did not reproduce the same issue. Could you please illustrate what recurrence settings you defined in your appointment when you got this error?

                                  If you used a project from a different example, please share a link to it. I hope to hear from you soon.

                                  Thanks,
                                  Andrey

                                • Larry McIntosh 11.11.2019

                                  I was trying to save a Weekly recurring item.  I opened a normal appointment, selected “Recurrence”, set it to Weekly, then tried to save the appointment.

                                • Alexey Z (DevExpress Support) 11.11.2019

                                  Hello,

                                  Thank you for the clarification. I was able to reproduce this behavior using the steps you described. Now, I have passed this thread to our developers for further research. Once we obtain any results, we will notify you.

                                  Should you have additional questions, let us know.

                                0 Solutions

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