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anagram4wander / VirtualizingObservableCollection

.NET PCL With Virtualizing Observable Collection
http://alphachitech.wordpress.com/2015/01/31/virtualizing-observable-collection/
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Refreshing when data has been updated #13

Closed ghost closed 8 years ago

ghost commented 8 years ago

Now this may be a stupid question bearing in mind we're talking about an ObservableCollection...

I'm displaying records from a table with potentially 1000's of records in my database table - all working really well regarding virtualisation, paging etc.

However, other processes can cause the data in the database table to be updated. Is there a built-in mechanism for Refreshing the data, rather than Resetting it?

My core data layer routines (using SQLite-Net) return IEnumerables, not ObservableCollections.

anagram4wander commented 8 years ago

The full edit set are supported - insert, append and delete - so you don't need to reset it to update :-)

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On Aug 14, 2016, at 7:54 AM, james-lavery notifications@github.com wrote:

Now this may be a stupid question bearing in mind we're talking about an ObservableCollection...

I'm displaying records from a table with potentially 1000's of records in my database table - all working really well regarding virtualisation, paging etc.

However, other processes can cause the data in the database table to be updated. Is there a built-in mechanism for Refreshing the data, rather than Resetting it?

My core data layer routines (using SQLite-Net) return IEnumerables, not ObservableCollections.

— You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub, or mute the thread.

ghost commented 8 years ago

Thanks - I understand that the full CRUD set is supported by my process. However I have another thread running which can update the DB and can raise an event or send a message to notify of the update.

Is there a mechanism to refresh/reset and then navigate to the same current page/record?

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-----Original Message----- From: anagram4wander [notifications@github.com] Received: Sunday, 14 Aug 2016, 23:42 To: anagram4wander/VirtualizingObservableCollection [VirtualizingObservableCollection@noreply.github.com] CC: James Lavery [james.lavery@microsec.co.uk]; Author [author@noreply.github.com] Subject: Re: [anagram4wander/VirtualizingObservableCollection] Refreshing when data has been updated (#13)

The full edit set are supported - insert, append and delete - so you don't need to reset it to update :-)

Sent from my iPhone

On Aug 14, 2016, at 7:54 AM, james-lavery notifications@github.com wrote:

Now this may be a stupid question bearing in mind we're talking about an ObservableCollection...

I'm displaying records from a table with potentially 1000's of records in my database table - all working really well regarding virtualisation, paging etc.

However, other processes can cause the data in the database table to be updated. Is there a built-in mechanism for Refreshing the data, rather than Resetting it?

My core data layer routines (using SQLite-Net) return IEnumerables, not ObservableCollections.

— You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub, or mute the thread.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHubhttps://github.com/anagram4wander/VirtualizingObservableCollection/issues/13#issuecomment-239702343, or mute the threadhttps://github.com/notifications/unsubscribe-auth/ABrKHtkecj3fJZYO1aiwdGxu439gSPycks5qf5nZgaJpZM4Jj6fx.

ghost commented 8 years ago

Ah - I see that current page/location are maintained when resetting. Perfect.