Own ViewModel - Threads - Dispatcher

Markus Freitag 3,786

Hello,
I use my own ViewModel with properties that display the data via binding. If the properties are set by a thread (Socket Client). Can this lead to problems? Would I have to use Dispatchers, if so, how do I do it correctly?

Thanks for response.
Markus

Peter Fleischer (former MVP) 19,326 Reputation points

2020-07-14T19:15:16.57+00:00

Hi Markus, you must use thread-saved objects to transfer values via dispatcher (or SynchronizationContext) from on thread to another thread to access non-tread-saved objects.
Markus Freitag 3,786 Reputation points

2020-07-14T19:46:44.853+00:00

Hi Peter,

I insert a Client (Synchron), make a request, the response is the OrderNumber.

I use inside ViewModel the OrderNumber (set with PropertyChanged anf get )

Can I write
OrderNumber = MyClient.SendMessage("GetCurrentOrderNo");

thread-saved objects to transfer values via dispatcher

Can you make s sample for me?
Thanks.
DaisyTian-1203 11,626 Reputation points

2020-07-16T06:05:55.387+00:00

You said your properties are set by a thread, where are the properties?Dispatchers provides services for managing the queue of work items for a thread. For example, if you want to update the data for UI in child thread, you can use dispatcher to handle.Could you tell me more details about the SendMessage?

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