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Refresh Data / Sorting from ViewModel

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GridView
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Daniel Grünberger
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Daniel Grünberger asked on 21 Aug 2012, 02:59 PM
Hi,



I'm using the WPF RadGridView in an MVVM architecture.



My grid is sorted using a SortDescriptor defined on an "Order" property in XAML. The user is able to change the order using different ContextMenu Buttons. When I change the Order Property of the items in my ItemsSource, the changes are visible in the grid, but the sorting is not updated. Which means, the items are sorted in a wrong order.



How do I refresh the ItemsSource in my ViewModel? I do not want to aquire a reference to my RadGridView and call the Rebind() method.



Greets

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Dimitrina
Telerik team
answered on 22 Aug 2012, 02:03 PM
Hello,

The filter will be automatically re-applied when the bound source collection raises CollectionChanged event. If the Action is Reset, the grid will re-create its entire view. It the Action is Add or Remove with a single item, the grid will evaluate its FilterDescriptors. So you could remove a data item, edit its Value property and then add it back to the collection again.

Regards,
Didie
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Dimitrina
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