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DataFormCommandProvider - AddNew

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DataForm
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jen
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jen asked on 03 Jul 2015, 05:38 PM

I have a dataform using a custom DataFormCommandProvider. The CommandProvider has an overriden CanAddNewExecute() function that always returns true.

When I first go to the page with this control I can Add New items all I want. However once I edit an item, and commit or cancel the edit, the add new button (which is still enabled) stops working. 


In debug I can see the 
CommandProvider's AddNew() function is getting called; the only difference is in the beginning the Dataform.CanAddItems property is true. After the Edit, the Dataform.CanAddItems property is false. I believe that while it is false it will not do the AddNewItem functionality.

 

 How can I get the Dataform.CanAddItems property back to being true after an edit, so I can continue adding items? 

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jen
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answered on 03 Jul 2015, 07:34 PM

I am seeing this same behaviour when not using the custom DataFormCommandProvider as well. 
Could it be an issue with the underlying source collection?

I am using an ObservableCollection, exposed through a CollectionViewSource

We can add new until we edit, then we can no longer add new.

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jen
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answered on 07 Jul 2015, 03:31 PM

looking a bit deeper, I notice this is only happening when the edit is canceled.

Anyone have an idea what is going on?

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Stefan
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answered on 08 Jul 2015, 11:25 AM
Hi jen,

I am writing to inform you that we have replied you in your 950058 ticket. In order to avoid double posting, I would kindly ask you to continue any further communication regarding this case in it.

Best Regards,
Stefan
Telerik
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Stefan
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