CollectionEditor deletes added items

[Zberbang]

Hello all,

I've encountered an undefined behaviour of CollectioEditor with 2014 Q1 and previous.
My data have 2 levels of nesting: Client -> List<Contracts> -> List<Option>.
Also I use custom template for CollectionEditor to set some properties of RadPropertyGrid for editing List<Option> (dimensions + visibilty).

How to reproduce the problem:
1. Use CollectionEditor for "Contracts" and add new Contract twice.
2. Select second Contract.
3. Use CollectionEditor for "Options" and add new Option.
4. Select first Contract
5. Select second Contract
6. Open CollectionEditor for "Options" ... ooops.. no option presents!

Problem occur even if I use original template from assembly.

The test project can be found here.

Best regards,
Zber

[Yordanka]

Hi Zber,

Thank you for the feedback.

I was able to reproduce the problem you report. However the used approach is not quite recommended and that's why the behavior is wrong. If you would like to override the CollectionEditor template you should apply implicit themes. I updated the project and attached it for a reference. Let me know if you have additional questions.

Regards,
Yordanka
Telerik

 

 

[Zberbang]

Hi Yordanka,

Thanks for clarification!

[Zberbang]

Hi Yordanka,

Unfortunately implicit themes didn't help me.
For example I'm overriding CollectionEditor template to have NestedProperties visible in internal RadPropertyGrid as Didie recommended here.
What should I do?

I've update the project with CollectionEditorTemplate overriden - link.

[Yordanka]

Hello Zber,

I reproduced the problem and will make some tests. I will contact you as soon as I have more information.

Regards,
Yordanka
Telerik

 

 

[Yordanka]

Hi Zber,

I confirm the problem and I logged it as a bug so we can investigate it further. You can track its status from the corresponding Feedback item.

I've updated your Telerik points.

Regards,
Yordanka
Telerik