How to Ensure Thread-Safe Modifications of ObservableCollections in WPF?

ObservableCollection in WPF The thread security modification

When using

in WPF, maintaining thread safety is very important. Try to modify

from the work thread without appropriate synchronization. ObservableCollection ObservableCollection To modify

from the work thread,

use the ObservableCollection method on the UI thread . This method executes the following steps: BindingOperations.EnableCollectionSynchronization

Labs of CollectionChanged Event:

It specifies the UI thread as a scheduling program for
1. events to ensure that they are handled on the UI thread. Locking the collection during the modification period: CollectionChanged It obtains the lock on the set until the event of the group is processed. This can prevent the UI thread event processing program accessing it when the work thread is modified.
2. The steps to deal with the safety collection correctly:

Select the lock mechanism: OK that you will use the traditional sentence or custom synchronization mechanism.

Enable synchronization:
1. On the UI thread, call the appropriate load of according to the selected lock mechanism. lock Get the lock before modifying:
In the work thread, before the modification, use the same mechanism to lock the set.
2. Example of using Lock statement: EnableCollectionSynchronization
3. By implementing these steps, you can update from the work thread without affecting the integrity of data.

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