C# Task pass as a parameter to other task
2
So i have currently such code:
//THIS IS A PART OF A METHOD
// ...
// Add a logic after the request has finished
(this.cache[RequestType.DeleteReceiver] as Task<Tuple<ServiceResponseCode, bool>>).ContinueWith((receiversDeletionTask) =>
{
receiversDeletionTask.Wait();
// Check that response was ok
if (receiversDeletionTask.Result.Item1 == ServiceResponseCode.Ok && receiversDeletionTask.Result.Item2 == true)
{
ReceiverModel deletedReceiver = this.fetchedReceivers.Find(receiver => receiver.Id == id);
this.fetchedReceivers.Remove(deletedReceiver);
this.fetchedReceiversIndexes.RemoveAt(this.fetchedReceivers.IndexOf(deletedReceiver));
foreach (int index in this.fetchedReceiversIndexes)
{
this.fetchedReceiversIndexes[index] = index;
}
}
});
return await (this.cache[RequestType.DeleteReceiver] as Task<Tuple<ServiceResponseCode, bool>>);
In this implementation i return the first task, and the caller begins to work after the first task finishes, but i wan't the caller, to wait for the ContinueWith task.
So i have tried to refactor to this:
Task receiversDeletionTask = this.cache[RequestType.DeleteReceiver] as Task<Tuple<ServiceResponseCode, bool>>;
Task receiverDeletionFromCacheTask = new Task((receiversDeletionTask) => { });
But, it prompts me: Delegate 'Action' does not take 1 arguments
I know that action doesn't take an argument. I need a way how to make his happen.
I have a task that deletes the receiver on the server - receiversDeletionTask;
I need after finishing the receiversDeletionTask launch a method, that will remove the data from local cache.
And i need to return info only when the cache clearing method will finish.
c# asynchronous task
asked Nov 22 '18 at 22:04
Cheese
1,96352355
|
show 1 more comment
2
So i have currently such code:
//THIS IS A PART OF A METHOD
// ...
// Add a logic after the request has finished
(this.cache[RequestType.DeleteReceiver] as Task<Tuple<ServiceResponseCode, bool>>).ContinueWith((receiversDeletionTask) =>
{
receiversDeletionTask.Wait();
// Check that response was ok
if (receiversDeletionTask.Result.Item1 == ServiceResponseCode.Ok && receiversDeletionTask.Result.Item2 == true)
{
ReceiverModel deletedReceiver = this.fetchedReceivers.Find(receiver => receiver.Id == id);
this.fetchedReceivers.Remove(deletedReceiver);
this.fetchedReceiversIndexes.RemoveAt(this.fetchedReceivers.IndexOf(deletedReceiver));
foreach (int index in this.fetchedReceiversIndexes)
{
this.fetchedReceiversIndexes[index] = index;
}
}
});
return await (this.cache[RequestType.DeleteReceiver] as Task<Tuple<ServiceResponseCode, bool>>);
In this implementation i return the first task, and the caller begins to work after the first task finishes, but i wan't the caller, to wait for the ContinueWith task.
So i have tried to refactor to this:
Task receiversDeletionTask = this.cache[RequestType.DeleteReceiver] as Task<Tuple<ServiceResponseCode, bool>>;
Task receiverDeletionFromCacheTask = new Task((receiversDeletionTask) => { });
But, it prompts me: Delegate 'Action' does not take 1 arguments
I know that action doesn't take an argument. I need a way how to make his happen.
I have a task that deletes the receiver on the server - receiversDeletionTask;
I need after finishing the receiversDeletionTask launch a method, that will remove the data from local cache.
And i need to return info only when the cache clearing method will finish.
c# asynchronous task
asked Nov 22 '18 at 22:04
Cheese
1,96352355
1
If you want the caller to wait for the continuation task, then you should await and return the continuation task, no?
– elgonzo
Nov 22 '18 at 22:15
@elgonzo Yes, i need to wait for it, but how to refactor the code to do so? I need 2 task to run after 1 task, and the caller should await for the 2 task
– Cheese
Nov 22 '18 at 22:16
TheContinueWithmethod returns the Task object for the continuation task. I have no idea what and why you want to refactor. Instead of awaiting and returningthis.cache[RequestType.DeleteReceiver]just take the task object provided byContinueWithand await and return this task object. Do i perhaps misunderstand you?
– elgonzo
Nov 22 '18 at 22:19
(You might perhaps need to modfiy your continuation task method so that it returns data the caller awaiting this task might want/need.)
– elgonzo
Nov 22 '18 at 22:23
@elgonzo "The ContinueWith method returns the Task object for the continuation task" - i think i missed this. Let me try it
– Cheese
Nov 22 '18 at 22:26
|
show 1 more comment
2
2
2
So i have currently such code:
//THIS IS A PART OF A METHOD
// ...
// Add a logic after the request has finished
(this.cache[RequestType.DeleteReceiver] as Task<Tuple<ServiceResponseCode, bool>>).ContinueWith((receiversDeletionTask) =>
{
receiversDeletionTask.Wait();
// Check that response was ok
if (receiversDeletionTask.Result.Item1 == ServiceResponseCode.Ok && receiversDeletionTask.Result.Item2 == true)
{
ReceiverModel deletedReceiver = this.fetchedReceivers.Find(receiver => receiver.Id == id);
this.fetchedReceivers.Remove(deletedReceiver);
this.fetchedReceiversIndexes.RemoveAt(this.fetchedReceivers.IndexOf(deletedReceiver));
foreach (int index in this.fetchedReceiversIndexes)
{
this.fetchedReceiversIndexes[index] = index;
}
}
});
return await (this.cache[RequestType.DeleteReceiver] as Task<Tuple<ServiceResponseCode, bool>>);
In this implementation i return the first task, and the caller begins to work after the first task finishes, but i wan't the caller, to wait for the ContinueWith task.
So i have tried to refactor to this:
Task receiversDeletionTask = this.cache[RequestType.DeleteReceiver] as Task<Tuple<ServiceResponseCode, bool>>;
Task receiverDeletionFromCacheTask = new Task((receiversDeletionTask) => { });
But, it prompts me: Delegate 'Action' does not take 1 arguments
I know that action doesn't take an argument. I need a way how to make his happen.
I have a task that deletes the receiver on the server - receiversDeletionTask;
I need after finishing the receiversDeletionTask launch a method, that will remove the data from local cache.
And i need to return info only when the cache clearing method will finish.
c# asynchronous task
asked Nov 22 '18 at 22:04
Cheese
1,96352355
So i have currently such code:
//THIS IS A PART OF A METHOD
// ...
// Add a logic after the request has finished
(this.cache[RequestType.DeleteReceiver] as Task<Tuple<ServiceResponseCode, bool>>).ContinueWith((receiversDeletionTask) =>
{
receiversDeletionTask.Wait();
// Check that response was ok
if (receiversDeletionTask.Result.Item1 == ServiceResponseCode.Ok && receiversDeletionTask.Result.Item2 == true)
{
ReceiverModel deletedReceiver = this.fetchedReceivers.Find(receiver => receiver.Id == id);
this.fetchedReceivers.Remove(deletedReceiver);
this.fetchedReceiversIndexes.RemoveAt(this.fetchedReceivers.IndexOf(deletedReceiver));
foreach (int index in this.fetchedReceiversIndexes)
{
this.fetchedReceiversIndexes[index] = index;
}
}
});
return await (this.cache[RequestType.DeleteReceiver] as Task<Tuple<ServiceResponseCode, bool>>);
In this implementation i return the first task, and the caller begins to work after the first task finishes, but i wan't the caller, to wait for the ContinueWith task.
So i have tried to refactor to this:
Task receiversDeletionTask = this.cache[RequestType.DeleteReceiver] as Task<Tuple<ServiceResponseCode, bool>>;
Task receiverDeletionFromCacheTask = new Task((receiversDeletionTask) => { });
But, it prompts me: Delegate 'Action' does not take 1 arguments
I know that action doesn't take an argument. I need a way how to make his happen.
I have a task that deletes the receiver on the server - receiversDeletionTask;
I need after finishing the receiversDeletionTask launch a method, that will remove the data from local cache.
And i need to return info only when the cache clearing method will finish.
c# asynchronous task
c# asynchronous task
asked Nov 22 '18 at 22:04
Cheese
1,96352355
asked Nov 22 '18 at 22:04
Cheese
1,96352355
asked Nov 22 '18 at 22:04
Cheese
1,96352355
asked Nov 22 '18 at 22:04
Cheese
1,96352355
asked Nov 22 '18 at 22:04
Cheese
1,96352355
1,96352355
1
If you want the caller to wait for the continuation task, then you should await and return the continuation task, no?
– elgonzo
Nov 22 '18 at 22:15
@elgonzo Yes, i need to wait for it, but how to refactor the code to do so? I need 2 task to run after 1 task, and the caller should await for the 2 task
– Cheese
Nov 22 '18 at 22:16
TheContinueWithmethod returns the Task object for the continuation task. I have no idea what and why you want to refactor. Instead of awaiting and returningthis.cache[RequestType.DeleteReceiver]just take the task object provided byContinueWithand await and return this task object. Do i perhaps misunderstand you?
– elgonzo
Nov 22 '18 at 22:19
(You might perhaps need to modfiy your continuation task method so that it returns data the caller awaiting this task might want/need.)
– elgonzo
Nov 22 '18 at 22:23
@elgonzo "The ContinueWith method returns the Task object for the continuation task" - i think i missed this. Let me try it
– Cheese
Nov 22 '18 at 22:26
|
show 1 more comment
1
If you want the caller to wait for the continuation task, then you should await and return the continuation task, no?
– elgonzo
Nov 22 '18 at 22:15
@elgonzo Yes, i need to wait for it, but how to refactor the code to do so? I need 2 task to run after 1 task, and the caller should await for the 2 task
– Cheese
Nov 22 '18 at 22:16
TheContinueWithmethod returns the Task object for the continuation task. I have no idea what and why you want to refactor. Instead of awaiting and returningthis.cache[RequestType.DeleteReceiver]just take the task object provided byContinueWithand await and return this task object. Do i perhaps misunderstand you?
– elgonzo
Nov 22 '18 at 22:19
(You might perhaps need to modfiy your continuation task method so that it returns data the caller awaiting this task might want/need.)
– elgonzo
Nov 22 '18 at 22:23
@elgonzo "The ContinueWith method returns the Task object for the continuation task" - i think i missed this. Let me try it
– Cheese
Nov 22 '18 at 22:26
1
1
If you want the caller to wait for the continuation task, then you should await and return the continuation task, no?
– elgonzo
Nov 22 '18 at 22:15
If you want the caller to wait for the continuation task, then you should await and return the continuation task, no?
– elgonzo
Nov 22 '18 at 22:15
@elgonzo Yes, i need to wait for it, but how to refactor the code to do so? I need 2 task to run after 1 task, and the caller should await for the 2 task
– Cheese
Nov 22 '18 at 22:16
@elgonzo Yes, i need to wait for it, but how to refactor the code to do so? I need 2 task to run after 1 task, and the caller should await for the 2 task
– Cheese
Nov 22 '18 at 22:16
The
ContinueWith method returns the Task object for the continuation task. I have no idea what and why you want to refactor. Instead of awaiting and returning this.cache[RequestType.DeleteReceiver] just take the task object provided by ContinueWith and await and return this task object. Do i perhaps misunderstand you?– elgonzo
Nov 22 '18 at 22:19
The
ContinueWith method returns the Task object for the continuation task. I have no idea what and why you want to refactor. Instead of awaiting and returning this.cache[RequestType.DeleteReceiver] just take the task object provided by ContinueWith and await and return this task object. Do i perhaps misunderstand you?– elgonzo
Nov 22 '18 at 22:19
(You might perhaps need to modfiy your continuation task method so that it returns data the caller awaiting this task might want/need.)
– elgonzo
Nov 22 '18 at 22:23
(You might perhaps need to modfiy your continuation task method so that it returns data the caller awaiting this task might want/need.)
– elgonzo
Nov 22 '18 at 22:23
@elgonzo "The ContinueWith method returns the Task object for the continuation task" - i think i missed this. Let me try it
– Cheese
Nov 22 '18 at 22:26
@elgonzo "The ContinueWith method returns the Task object for the continuation task" - i think i missed this. Let me try it
– Cheese
Nov 22 '18 at 22:26
|
show 1 more comment
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1
If you want the caller to wait for the continuation task, then you should await and return the continuation task, no?
– elgonzo
Nov 22 '18 at 22:15
@elgonzo Yes, i need to wait for it, but how to refactor the code to do so? I need 2 task to run after 1 task, and the caller should await for the 2 task
– Cheese
Nov 22 '18 at 22:16
The
ContinueWithmethod returns the Task object for the continuation task. I have no idea what and why you want to refactor. Instead of awaiting and returningthis.cache[RequestType.DeleteReceiver]just take the task object provided byContinueWithand await and return this task object. Do i perhaps misunderstand you?– elgonzo
Nov 22 '18 at 22:19
(You might perhaps need to modfiy your continuation task method so that it returns data the caller awaiting this task might want/need.)
– elgonzo
Nov 22 '18 at 22:23
@elgonzo "The ContinueWith method returns the Task object for the continuation task" - i think i missed this. Let me try it
– Cheese
Nov 22 '18 at 22:26