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So when you restart the app, the last snapshot stored is displayed.

Below is the code loading trades data every 2 seconds.Note To fully support transferring data values from binding source objects to binding targets, each object in your collection that supports bindable properties must implement an appropriate property changed notification mechanism such as the INotify Property Changed interface.Returns a filtered collection of elements that contains the descendant elements of every element and document in the source collection.If you would like to know more details of Observable Collection, please read from the API link below. can use Observable Collection object and bindable property in a View Model class and bind this to a UI control such as Data Grid's Items Source property.

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