Observable Collection and INotifyPropertyChanged in Blazor #6612

cellero created one year ago

ABP Framework version: v8.0++
UI type: Blazor
DB provider: EF Core

I want to refresh data on a Blazor page when data in the collection changes. Do you have any advice / recommendations?

Currently I use a timer but periodically get the exception below - it occurs when one of the clients disconnects.

System.ObjectDisposedException HResult=0x80131622 Message=Instances cannot be resolved and nested lifetimes cannot be created from this LifetimeScope as it (or one of its parent scopes) has already been disposed.

I'm considering implementing an INotifyCollectionChanged / Observable Collection: https://blazor.syncfusion.com/documentation/common/data-binding/data-updates But I'm not sure of the correct approach.

Any advice would be appreciated.

liangshiwei created one year ago

Support Team Fullstack Developer

Yes, it's recommended.

ABP also used INotifyCollectionChanged https://github.com/abpframework/abp/blob/e6e91bf11cd219ccab72633b13994dc5be2d2932/framework/src/Volo.Abp.AspNetCore.Components.Web.Theming/Layout/PageLayout.cs

cellero created one year ago

Thanks, but the updates to the collection can be from any client.
I want to set the NotificationChange at the repository level so that a change from 1 client triggers updates to all clients.

Can, for example, the NotificationChange be implemented in the Domain Manager and for that to trigger Observable Collection updates?