Non Blocking C# Task Cancelling

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In our previous sample snippet, Cancel a Loop in a Task with CancellationTokens in c#Β , I try to explain how we can get out of a looping c# task, but a problem may arise from that situation. If we were to wait for any result out of that Task, we would be blocking the calling thread until the task returned, which is not good if we are on the main thread. We would locking our UI and might crash our application.

So I’ve been testing different ways toΒ get out of that loop without causing any trouble, and you can achieve what we want many different ways.

So, to begin with, I think I would correctly assume that it is only necessary to wait for a task to complete if that task will return something. If there is no return value, why would we want to call wait on it? We can just break out of it, correct me if I’m wrong. If we have a return value, then it is necessary to surround the wait call on the task with try/catch to receive its result. But then again, we can avoid the locking here with a continuation task, which will create and start the task after the first one completes, giving us the result from the previous task to work with.

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Measure Method Time Performance

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Quick snippet to let you check the time used by any method you have.

This will write to the console the time spent on the method.

Just remember to use System.Diagnostics.
More info on Stopwatch.

That’s it. Enjoy.

Cancel a Loop in a Task with CancellationTokens in C#

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This post explains the use of Cancellation Token in C# using Tasks, which are available since .Net Framework 4.

Say you’ve created a asynchronous Task. The method you’re running inside your task contains a loop ( infinite or not ), and you want to break out of it peacefully. You would need to create a CancellationTokenSource and pass aΒ Cancellation Token to the Task so it can be accessed in the main loop. Continue reading

Memtiles for Android in Beta Phase

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So I’m making a casual memory game for mobile platforms. Its a simple educational puzzle, where you need to retrieve the tile pairs on the grid.

There is currently only one mode and one theme, but more will be added this month. There will be 3 more themes and a new game mode (maybe). There is also the educational part to do πŸ™‚

You can play it online in your browser at MichaelAdaixo.com/MemtilesBeta and also download the latest apk version for Android, from 2.3.1 to 4.x.

Please report any bug you might find, as well as suggestions. πŸ™‚

Thanks.

Generic Method

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I’ve come up with a pretty neat solution to this:
If you don’t want to write the same method for different data types, you can use generics.

It’s pretty easy once you know what to look for πŸ™‚ Just search Generics c# and you’ll find a bunch of questions and answers on StackOverflow, msdn and CodeProject πŸ™‚
Here’s the solution:

Pretty Cool eh!? πŸ™‚

Now instead of having multiple methods to make the same operation, you have one that works for many types.