Thread issue when delete socket

Question

I've got a new problem: when I try to close the socket by deleting it, a thread marshalling issue has appeared:
void MainPage::PutOutFire()
if (CoreApplication::Properties->HasKey("client"))
// Remove the socket from the list of application properties as we are about to close it.
StreamSocket^ socket = dynamic_cast<StreamSocket^>(CoreApplication::Properties->Lookup("client"));
CoreApplication::Properties->Remove("client");
// Close the socket.
Dispatcher->RunAsync(Windows::UI::Core::CoreDispatcherPriority::Normal, ref new Windows::UI::Core::DispatchedHandler([this, &socket]()
if (socket)
delete socket;//pivot of crash!!!
socket = nullptr;
bIsConnected = false;
NotifyUser("Client closed.", NotifyType::StatusMessage);
else
NotifyUser("Client already closed or not connected.", NotifyType::WarningMessage);
This is called by the button event handler.
Then I get this error:
Microsoft C++ exception: Platform::WrongThreadException ^ at memory location 0x0545DD48. HRESULT:0x8001010E The application called an interface that was marshalled for a different thread.
WinRT information: The application called an interface that was marshalled for a different thread.
I used the Dispatcher, and I put it in the UI thread, but the issue is still there.

Answer 1

I don't think you have to delete it. Just set it to nullptr, it will self destruct by itself due to ref counting.