Event Subscription does not connect with the event published
0
I have two ViewModels. In one of them I publish this event
_eventAggregator.GetEvent<AddUbicacionEvent>().Publish(sensorUbicado.Sensor.CodigoInterno);
And the in the other one I have this in the constructor
_eventAggregator.GetEvent<AddUbicacionEvent>().Subscribe(OnReceiveUbicacion);
And this method
private void OnReceiveUbicacion(string obj)
{
MessageBox.Show("Event Captured");
}
But the Code never stops in this method
I'm Using AutoFac to inject the Event Aggergator in the constructor of the view models
public IContainer Bootstrap()
{
var builder = new ContainerBuilder();
builder.RegisterType<EventAggregator>().As<IEventAggregator>().SingleInstance();
Then I have this
public PrincipalViewModel(IEventAggregator eventAggregator, IUbicacionRepository ubicacionRepository, ComponenteEscucha componenteEscucha)
{
_eventAggregator = eventAggregator;
And this
public GestionUbicacionesViewModel(IEventAggregator eventAggregator, ):base(eventAggregator)
{
_eventAggregator = eventAggregator;
Any idea please?
Regards
wpf prism eventaggregator
asked Nov 23 '18 at 18:16
kintelakintela
1611114
|
show 1 more comment
0
I have two ViewModels. In one of them I publish this event
_eventAggregator.GetEvent<AddUbicacionEvent>().Publish(sensorUbicado.Sensor.CodigoInterno);
And the in the other one I have this in the constructor
_eventAggregator.GetEvent<AddUbicacionEvent>().Subscribe(OnReceiveUbicacion);
And this method
private void OnReceiveUbicacion(string obj)
{
MessageBox.Show("Event Captured");
}
But the Code never stops in this method
I'm Using AutoFac to inject the Event Aggergator in the constructor of the view models
public IContainer Bootstrap()
{
var builder = new ContainerBuilder();
builder.RegisterType<EventAggregator>().As<IEventAggregator>().SingleInstance();
Then I have this
public PrincipalViewModel(IEventAggregator eventAggregator, IUbicacionRepository ubicacionRepository, ComponenteEscucha componenteEscucha)
{
_eventAggregator = eventAggregator;
And this
public GestionUbicacionesViewModel(IEventAggregator eventAggregator, ):base(eventAggregator)
{
_eventAggregator = eventAggregator;
Any idea please?
Regards
wpf prism eventaggregator
asked Nov 23 '18 at 18:16
kintelakintela
1611114
is_eventAggregatorthe same instance in both view models?
– ASh
Nov 23 '18 at 18:32
This is one of the downsides of eventaggregator. Because it's an instance you're pub/subbing you need to pass it round somehow. Either dependency injection or resources are the usual choices unless one vm is the child of the other and you can just pass it into the constructor.
– Andy
Nov 23 '18 at 19:20
if you useViewModelLocator, the event aggregator is the same usually, no need to worry there. but when do your view models get created? the subscriber has to be alive (and have subscribed) when the event is published.
– Haukinger
Nov 24 '18 at 17:18
I'm injecting IEventAggregator in the constructor of both VMs by AutoFac
– kintela
Nov 26 '18 at 10:19
yeah, sure, but when do you navigate to each of the view models?
– Haukinger
Nov 27 '18 at 10:11
|
show 1 more comment
0
0
0
I have two ViewModels. In one of them I publish this event
_eventAggregator.GetEvent<AddUbicacionEvent>().Publish(sensorUbicado.Sensor.CodigoInterno);
And the in the other one I have this in the constructor
_eventAggregator.GetEvent<AddUbicacionEvent>().Subscribe(OnReceiveUbicacion);
And this method
private void OnReceiveUbicacion(string obj)
{
MessageBox.Show("Event Captured");
}
But the Code never stops in this method
I'm Using AutoFac to inject the Event Aggergator in the constructor of the view models
public IContainer Bootstrap()
{
var builder = new ContainerBuilder();
builder.RegisterType<EventAggregator>().As<IEventAggregator>().SingleInstance();
Then I have this
public PrincipalViewModel(IEventAggregator eventAggregator, IUbicacionRepository ubicacionRepository, ComponenteEscucha componenteEscucha)
{
_eventAggregator = eventAggregator;
And this
public GestionUbicacionesViewModel(IEventAggregator eventAggregator, ):base(eventAggregator)
{
_eventAggregator = eventAggregator;
Any idea please?
Regards
wpf prism eventaggregator
asked Nov 23 '18 at 18:16
kintelakintela
1611114
I have two ViewModels. In one of them I publish this event
_eventAggregator.GetEvent<AddUbicacionEvent>().Publish(sensorUbicado.Sensor.CodigoInterno);
And the in the other one I have this in the constructor
_eventAggregator.GetEvent<AddUbicacionEvent>().Subscribe(OnReceiveUbicacion);
And this method
private void OnReceiveUbicacion(string obj)
{
MessageBox.Show("Event Captured");
}
But the Code never stops in this method
I'm Using AutoFac to inject the Event Aggergator in the constructor of the view models
public IContainer Bootstrap()
{
var builder = new ContainerBuilder();
builder.RegisterType<EventAggregator>().As<IEventAggregator>().SingleInstance();
Then I have this
public PrincipalViewModel(IEventAggregator eventAggregator, IUbicacionRepository ubicacionRepository, ComponenteEscucha componenteEscucha)
{
_eventAggregator = eventAggregator;
And this
public GestionUbicacionesViewModel(IEventAggregator eventAggregator, ):base(eventAggregator)
{
_eventAggregator = eventAggregator;
Any idea please?
Regards
wpf prism eventaggregator
wpf prism eventaggregator
asked Nov 23 '18 at 18:16
kintelakintela
1611114
asked Nov 23 '18 at 18:16
kintelakintela
1611114
edited Nov 26 '18 at 10:10
kintela
asked Nov 23 '18 at 18:16
kintelakintela
1611114
asked Nov 23 '18 at 18:16
kintelakintela
1611114
asked Nov 23 '18 at 18:16
kintelakintela
1611114
1611114
is_eventAggregatorthe same instance in both view models?
– ASh
Nov 23 '18 at 18:32
This is one of the downsides of eventaggregator. Because it's an instance you're pub/subbing you need to pass it round somehow. Either dependency injection or resources are the usual choices unless one vm is the child of the other and you can just pass it into the constructor.
– Andy
Nov 23 '18 at 19:20
if you useViewModelLocator, the event aggregator is the same usually, no need to worry there. but when do your view models get created? the subscriber has to be alive (and have subscribed) when the event is published.
– Haukinger
Nov 24 '18 at 17:18
I'm injecting IEventAggregator in the constructor of both VMs by AutoFac
– kintela
Nov 26 '18 at 10:19
yeah, sure, but when do you navigate to each of the view models?
– Haukinger
Nov 27 '18 at 10:11
|
show 1 more comment
is_eventAggregatorthe same instance in both view models?
– ASh
Nov 23 '18 at 18:32
This is one of the downsides of eventaggregator. Because it's an instance you're pub/subbing you need to pass it round somehow. Either dependency injection or resources are the usual choices unless one vm is the child of the other and you can just pass it into the constructor.
– Andy
Nov 23 '18 at 19:20
if you useViewModelLocator, the event aggregator is the same usually, no need to worry there. but when do your view models get created? the subscriber has to be alive (and have subscribed) when the event is published.
– Haukinger
Nov 24 '18 at 17:18
I'm injecting IEventAggregator in the constructor of both VMs by AutoFac
– kintela
Nov 26 '18 at 10:19
yeah, sure, but when do you navigate to each of the view models?
– Haukinger
Nov 27 '18 at 10:11
is
_eventAggregator the same instance in both view models?– ASh
Nov 23 '18 at 18:32
is
_eventAggregator the same instance in both view models?– ASh
Nov 23 '18 at 18:32
This is one of the downsides of eventaggregator. Because it's an instance you're pub/subbing you need to pass it round somehow. Either dependency injection or resources are the usual choices unless one vm is the child of the other and you can just pass it into the constructor.
– Andy
Nov 23 '18 at 19:20
This is one of the downsides of eventaggregator. Because it's an instance you're pub/subbing you need to pass it round somehow. Either dependency injection or resources are the usual choices unless one vm is the child of the other and you can just pass it into the constructor.
– Andy
Nov 23 '18 at 19:20
if you use
ViewModelLocator, the event aggregator is the same usually, no need to worry there. but when do your view models get created? the subscriber has to be alive (and have subscribed) when the event is published.– Haukinger
Nov 24 '18 at 17:18
if you use
ViewModelLocator, the event aggregator is the same usually, no need to worry there. but when do your view models get created? the subscriber has to be alive (and have subscribed) when the event is published.– Haukinger
Nov 24 '18 at 17:18
I'm injecting IEventAggregator in the constructor of both VMs by AutoFac
– kintela
Nov 26 '18 at 10:19
I'm injecting IEventAggregator in the constructor of both VMs by AutoFac
– kintela
Nov 26 '18 at 10:19
yeah, sure, but when do you navigate to each of the view models?
– Haukinger
Nov 27 '18 at 10:11
yeah, sure, but when do you navigate to each of the view models?
– Haukinger
Nov 27 '18 at 10:11
|
show 1 more comment
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is
_eventAggregatorthe same instance in both view models?– ASh
Nov 23 '18 at 18:32
This is one of the downsides of eventaggregator. Because it's an instance you're pub/subbing you need to pass it round somehow. Either dependency injection or resources are the usual choices unless one vm is the child of the other and you can just pass it into the constructor.
– Andy
Nov 23 '18 at 19:20
if you use
ViewModelLocator, the event aggregator is the same usually, no need to worry there. but when do your view models get created? the subscriber has to be alive (and have subscribed) when the event is published.– Haukinger
Nov 24 '18 at 17:18
I'm injecting IEventAggregator in the constructor of both VMs by AutoFac
– kintela
Nov 26 '18 at 10:19
yeah, sure, but when do you navigate to each of the view models?
– Haukinger
Nov 27 '18 at 10:11