Asynchronous Programming in C# - Part 1

Jul 31, 2014Download as PPT, PDF3 likes2,153 views

All about asynchronous programming from .NET starting from initial framework to latest version. We will be looking into almost all features from .NET which are related to Asynchronous Programming. This seminar will cover up evolution of asynchronous programming and slowly moving to Task.

Asynchronous Programming in C#
- Part 1
Presenter: Vikash Kumar, Mindfire Solutions
(28/07/2014)

About Me
MCTS-70-515 - Microsoft .NET 4.0, Web App
Development
MCP:70-483: MS - Programming in C#
Skills: MVC, Asp.Net WebForms, C#,
EntityFramework, OpenAccess, TypeScript,
SEO, jQuery, KendoUI, Lucene.Net,
Asynchronous programming, Sql Server.
Connect Me:
Blog :- http://vikutech.blogspot.in/
Twitter :- https://twitter.com/viku85
LinkedIn :- http://www.linkedin.com/pub/vikash-kumar/11/4b5/625
Google+ :- https://plus.google.com/108754146104237310375
Contact Me:
Email :- vikashk@mindfiresolutions.com / viku85@gmail.com
Skype :- mfsi_vikash

Agenda

What is asynchronous?

Asynchronous programming options and history

Thread and ThreadPool

Asynchronous Programming Model (APM)

Event-based Asynchronous Pattern (EAP)

Task
– Basics
– Exception handling
– Relationships

What is asynchronous?
Image Source: http://www.webopedia.com/
To do more than one thing at a time.
asyn = not with
chronos = time

Asynchronous programming
options and history

Thread

Asynchronous Programming Model (APM)

Event-Based Asynchronous Pattern (EAP)

BackgroundWorker

Task

Task Parallel Library - DataFlow

Task Parallel Library – Parallel APIs

Thread → APM → EAP → TAP

Thread and ThreadPool

Basic building block for async programming.

Parameterize thread, came with .NET 2.0
Image source:http://johnpaulmorabito.blogspot.in/

APM and EAP

APM depends upon Begin and End methods.

Callbacks are dependent on IAsyncResult.

EAP came with .NET 2.0 which automatically
handles synchronization context.

BackgroundWorker is an example of EAP based
programming.

EAP can be seen while adding web reference
which automatically creates with proxies classes.

Task

A task is an abstraction of unit of work to run
asynchronously.

Ways to execute: new Task(Speak).Start(),
Task.Factory.StartNew(Speak),
Task.Run(Speak)

Use FromAsync when an API has
BeginXXX/EndXXX.

Task can be canceled through
CancellationToken and checked with
ThrowIfCancellationRequested.

IProgress<T> came with 4.5 which can be
used to show status

Task error handling

Task are completed with following state: Ran to
Completion, Canceled and Faulted.

Task uses AggregateException to wrap up any
other exception occurs which can be found under
inner exception.

AggregateException comes with Flatten method to
check all exceptions.

AggregateException also comes with Handle
method which accepts predicate to handle errors.

ThrowUnobservedTaskExceptions to configure
to shallow exception.

Task Relationships
Task
Task Task Task
Child Tasks
Task Task Task
Chained Task

Task Relationships...

ContinueWhenXXX can be used to chain up
tasks with TaskContinuationOptions enum for
various conditions.

TaskCreationOptions.AttachedToParent is
used to create child tasks.

Creating child task will reflect exception in parent
task if exception occurs.

Task.Run uses
TaskCreationOptions.DenyChildAttach by
default which will act as nested task.

Presenter: XXXX XXXX, Mindfire Solutions
Question and
Answer

References

Pro Asynchronous Programming with .NET
 Asynchronous Programming Patterns
 Asynchronous Programming in .NET: I'll Call You Bac
(For definition)

Presenter: Vikash Kumar, Mindfire Solutions
Thank you

www.mindfiresolutions.com
https://www.facebook.com/MindfireSolutions
http://www.linkedin.com/company/mindfire-solutions
http://twitter.com/mindfires

This document discusses asynchronous programming in C# and compares it to synchronous programming. It explains that asynchronous programming allows a thread to pause its execution of a task and switch to another task, while synchronous programming requires a thread to fully complete a task before moving to the next one. It also discusses how asynchronous and synchronous programming can be used in both single-threaded and multi-threaded environments. The document then provides examples of asynchronous programming using the Asynchronous Programming Model, Event-based Asynchronous Pattern, and Task-based Asynchronous Pattern in .NET.

Async-await best practices in 10 minutesPaulo Morgado

This document summarizes a presentation on async-await best practices in .NET. The presentation covered several principles and guidance around proper usage of async-await, including only using async void for event handlers, preferring async Task over async void elsewhere, using Task.Run for CPU-bound work, and calling ConfigureAwait(false) in library methods to avoid unnecessary context switching. It also discussed differences between sync and async methods from the perspective of callers. The presentation aimed to explain best practices for writing efficient and scalable async-await code.

Threading in C#Medhat Dawoud

This document discusses multithreading in C#. It introduces threads and multithreading, describing how operating systems allow multitasking and how threads work. It explains that the .NET Framework supports multithreading using the System.Threading namespace and Thread class. It describes properties and methods of the Thread class, potential problems like deadlocks that can occur with multithreading, and solutions like synchronization and locking to prevent issues.

Asynchronous Programming in .NETPierre-Luc Maheu

Java 8 Lambda Expressions & StreamsNewCircle Training

This document contains the slides for a presentation on Java 8 Lambdas and Streams. The presentation will cover lambdas, including their concept, syntax, functional interfaces, variable capture, method references, and default methods. It will also cover streams. The slides provide some incomplete definitions that will be completed during the presentation. Questions from attendees are welcome. A quick survey asks about past experience with lambdas and streams.

Async/AwaitJeff Hart

This document discusses asynchronous programming using async/await in C#. It covers why multithreading is important, how to use async/await to offload work or scale applications, and how to properly structure asynchronous code. The key points are: async/await provides an easier way to write multithreaded code compared to previous approaches; methods should be marked async if they use await; and tasks can be used to start asynchronous work and wait for completion in a non-blocking way.

Java 8 lambdaManav Prasad

The document discusses lambda expressions in Java 8. It provides background on the lambda calculus and functional programming. Lambda expressions allow anonymous functions and are implemented using functional interfaces in Java 8. This enables a more functional style of programming. Lambda expressions can access variables from their enclosing scope and method references provide a concise way to pass existing methods. The streams API allows functional-style operations on collections and supports sequential and parallel processing.

Asynchronous programmingFilip Ekberg

C# File IO OperationsPrem Kumar Badri

Testing with Spring: An IntroductionSam Brannen

The Spring Framework has always embraced testing as a first class citizen. Spring-based components should be modular, easy to wire together via dependency injection, and therefore easy to test. In fact, when well designed following a POJO programming model, a component in a Spring application can be unit tested without using Spring at all. And when you take the step toward developing integration tests, Spring's testing support is there to make your job easy. Join Spring Test component lead Sam Brannen in this talk to learn about the basics for Spring's unit and integration testing support. This talk will provide attendees an overview of the following topics: unit testing without Spring, integration testing with Spring, loading application contexts (with and without context hierarchies), injecting dependencies into tests, transaction management for tests, SQL script execution, testing Spring MVC and REST web applications, and more.

Spring Data JPACheng Ta Yeh

The document provides an overview and introduction to Spring Data JPA, including: 1) How Spring Data abstracts away basic data management concepts and supports both relational and non-relational databases. 2) An example of refactoring from plain JPA to Spring Data JPA by defining a repository interface and using built-in query methods. 3) How the Spring Data repository abstraction reduces the effort to implement data access layers through interfaces like Repository.

Soap web serviceNITT, KAMK

Web services allow applications to communicate over the World Wide Web. They convert applications into web-based applications that can publish functions for others to access globally. Common protocols for web services include SOAP, which uses XML messages over HTTP, and REST. WSDL describes web services by defining how they can be called, expected parameters, return data structures, and more. SOAP is a standard protocol that uses XML to exchange information for remote method calls over the internet in a platform-independent way.

JavaScript Fetch APIXcat Liu

The document summarizes the JavaScript Fetch API, which replaces XMLHttpRequests and allows for making network requests and receiving responses. It includes 3 key points: 1) The Fetch API uses a global Fetch object and returns Promises that resolve to Response objects containing the fetched resource. Requests are made via the fetch() method and accept Request objects. 2) Request and Response objects represent the request sent and response received, containing properties like headers, method, url, and status. The Body mixin allows reading request/response bodies. 3) Service Workers act as programmable proxy servers, intercepting and handling network requests and responses, and examples are provided for common use cases like file uploads and streaming with the

Whitebox testing of Spring Boot applicationsYura Nosenko

This document discusses whitebox testing of Spring Boot applications. It begins with introductions and backgrounds, then discusses issues with existing testing frameworks like TestNG and JUnit 4. It proposes alternatives like Spock and JUnit 5, highlighting advantages of each. It also provides an overview of Spring Boot testing capabilities, focusing on integration testing support, transaction handling, main components, and reactive support. It concludes with examples of setting up Spring Boot testing with Spock and JUnit 5.

Asynchronous JavaScript Programming with Callbacks & PromisesHùng Nguyễn Huy

Collections In JavaBinoj T E

Collections in Java include arrays, iterators, and interfaces like Collection, Set, List, and Map. Arrays have advantages like type checking and known size but are fixed. Collections generalize arrays, allowing resizable and heterogeneous groups through interfaces implemented by classes like ArrayList, LinkedList, HashSet and HashMap. Common operations include adding, removing, and iterating over elements.

Selenium-LocatorsMithilesh Singh

C# Async AwaitSimplilearn

This Async Await in C# tutorial will acquaint you with a clear understanding of the fundamentals of C# Asynchronous programming. In this C# Tutorial for beginners, you will get better understanding on what is the Asynchronous Programming. we will start with an introduction to Asynchronous Programming,Then we will discuss the need of asynchronous Programming. then we will have the C# Async Await Explained With Example. Finally we will conclude the tutorial with differences between synchronous and asynchronous Programming.

Basic Concept of Node.js & NPMBhargav Anadkat

LINQ in C#Basant Medhat

Introduction to phpAnjan Banda

Java 8 Lambda and StreamsVenkata Naga Ravi

Presentation provides introduction and detailed explanation of the Java 8 Lambda and Streams. Lambda covers with Method references, default methods and Streams covers with stream operations,types of streams, collectors. Also streams are elaborated with parallel streams and benchmarking comparison of sequential and parallel streams. Additional slides are covered with Optional, Splitators, certain projects based on lambda and streams

JavaScript PromisesDerek Willian Stavis

Functional programming with Java 8LivePerson

In this Meetup Victor Perepelitsky - R&D Technical Leader at LivePerson leading the 'Real Time Event Processing Platform' team , will talk about Java 8', 'Stream API', 'Lambda', and 'Method reference'. Victor will clarify what functional programming is and how can you use java 8 in order to create better software. Victor will also cover some pain points that Java 8 did not solve regarding functionality and see how you can work around it.

Chapter 9 Abstract ClassOUM SAOKOSAL

What is Serialization in Java? | Java Tutorial | EdurekaEdureka!

The document discusses serialization in Java. Serialization is the process of converting a Java object into a byte stream to transfer the object between Java Virtual Machines. To serialize an object, its class must implement the Serializable or Externalizable interface. There are advantages like simplicity and universal applicability, but also disadvantages like objects becoming brittle during deserialization. Best practices for serialization include using javadoc tags and avoiding serializing certain fields.

Java 8 Lambda ExpressionsScott Leberknight

Background threadmsarangam

Mahender Sarangam is a senior software engineer at United Health Group with 5 years of experience using .NET technologies like C#, ASP.NET, and SQL Server. He is MCTS certified in web technologies and blogs about using background threads in .NET, which allow long-running tasks to run asynchronously and keep applications responsive by offloading work to non-UI threads. Background threads in .NET provide events for work progress, completion, and errors as well as properties with event argument data.

Qtp 9.2 examplesmedsherb

More Related Content

What's hot (20)

Asynchronous programmingFilip Ekberg

C# File IO OperationsPrem Kumar Badri

Testing with Spring: An IntroductionSam Brannen

Spring Data JPACheng Ta Yeh

Soap web serviceNITT, KAMK

JavaScript Fetch APIXcat Liu

Whitebox testing of Spring Boot applicationsYura Nosenko

Asynchronous JavaScript Programming with Callbacks & PromisesHùng Nguyễn Huy

Collections In JavaBinoj T E

Selenium-LocatorsMithilesh Singh

C# Async AwaitSimplilearn

Basic Concept of Node.js & NPMBhargav Anadkat

LINQ in C#Basant Medhat

Introduction to phpAnjan Banda

Java 8 Lambda and StreamsVenkata Naga Ravi

JavaScript PromisesDerek Willian Stavis

Functional programming with Java 8LivePerson

Chapter 9 Abstract ClassOUM SAOKOSAL

What is Serialization in Java? | Java Tutorial | EdurekaEdureka!

Java 8 Lambda ExpressionsScott Leberknight

Asynchronous programmingFilip Ekberg

C# File IO OperationsPrem Kumar Badri

Testing with Spring: An IntroductionSam Brannen

Spring Data JPACheng Ta Yeh

Soap web serviceNITT, KAMK

JavaScript Fetch APIXcat Liu

Whitebox testing of Spring Boot applicationsYura Nosenko

Asynchronous JavaScript Programming with Callbacks & PromisesHùng Nguyễn Huy

Collections In JavaBinoj T E

Selenium-LocatorsMithilesh Singh

C# Async AwaitSimplilearn

Basic Concept of Node.js & NPMBhargav Anadkat

LINQ in C#Basant Medhat

Introduction to phpAnjan Banda

Java 8 Lambda and StreamsVenkata Naga Ravi

JavaScript PromisesDerek Willian Stavis

Functional programming with Java 8LivePerson

Chapter 9 Abstract ClassOUM SAOKOSAL

What is Serialization in Java? | Java Tutorial | EdurekaEdureka!

Java 8 Lambda ExpressionsScott Leberknight

Similar to Asynchronous Programming in C# - Part 1 (20)

Background threadmsarangam

Qtp 9.2 examplesmedsherb

Release with confidenceJohn Congdon

This document discusses integrating test automation and code coverage for web service applications. It introduces Postman for calling web services and testing responses, and Jenkins for build automation and tracking test results over time. It then demonstrates setting up a test automation workflow using these tools on a sample Laravel application, including starting and stopping coverage collection, running tests from Postman and PHPUnit, and merging the results. Some best practices and philosophies around test automation and code coverage are also discussed.

What is seleniumPesara Swamy

Selenium IDE is a Firefox add-on that allows users to record, play back, debug and edit automated test scripts for web applications. It provides features like recording user actions, editing test cases, running individual commands or test suites, setting breakpoints and debugging tests. Tests created using Selenium IDE can be exported and run against other browsers using Selenium Remote Control and Selenium Grid.

Training – Going AsyncBetclic Everest Group Tech Team

C# 5 deep drive into asynchronous programmingPraveen Prajapati

This document discusses asynchronous programming in C# 5. It begins with an introduction to asynchronous concepts like concurrency and parallelism. It then covers the need for asynchronous programming, and how the Task Parallel Library in C# 4 helped address this need. The document goes on to explain the new keywords introduced in C# 5 - async and await - that allow asynchronous code to be written in a synchronous-looking way. It provides an example of using async and await. In summary, the document outlines the concepts around asynchronous programming and how C# has evolved through C# 4 and 5 to better support asynchronous operations.

Introduction of exception in vb.netsuraj pandey

Ddd melbourne 2011 C# async ctpPratik Khasnabis

This document discusses asynchronous programming in C# using the Async CTP. It explains why asynchronous programming is important for responsive user interfaces and scalable services. It demonstrates how to convert synchronous code to asynchronous using the new async and await keywords in C#, while maintaining a natural code flow. Key aspects of the Task-Based Asynchronous Pattern are outlined, including error handling and progress reporting. The document provides resources for learning more about asynchronous programming in C# and the implementation details of the Async CTP.

AsynchronousProgrammingDesignPatterns.pptxAbhishek Sagar

Asynchronous programming is used anywhere where your application interacts with other external entities - be it other threads, other processes. This world by its nature is Asynchronous. Asynchronous literally means - anything can happen anytime - unpredictable. How do you write software through Asynchronous programming? That's what we shall be going to learn in this course. Big software projects of reasonable sizes are Asynchronous. Software projects leave their synchronous boundaries the moment it starts integrating and communicating with external entities or go multithreaded. Asynchronous programming is widely used in Distributed Systems, Networking Protocols, Distributes Databases, etc. The prerequisite of this Course : Know Thread Synchronization Concepts - Mutexes and Condition Variables ( any thread library, but we will be using pthreads ) C or C++ in preferable, but if your fav language is any other mainstream language then also it is ok. Borrow the concepts and implement it in your fav language. Comfortable with basic Data structures such as Linked-List. Zeal to learn and excel - beyond what Crowd is doing ( DS/ALGO/CP ) The end product of this Course shall be a mini library yet very powerful library which allows you do develop software through Asynchronous programming. Course Difficulty Level : The Course is level is Intermediate to Advanced. Very beginners pls refrain from enrolling into the Course. Software Designing Problems to Address in this Course : Problem 1. Simulating Concurrency in Single-Threaded Programs problem 2. Reducing Multi-threaded Programs to Single Threaded Problem 3. Work Deferrals Problem 4. Asynchronous Communication Problem 5. Queuing and Processing Incoming Network Packets

Tdd is not about testingGianluca Padovani

Why should we use TDD to develop in Elixir? When we are applying it correctly? What are the differences that we can find in a code developed with TDD and in code not developed with it? Is it TDD about testing? Really? In this talk, I'll show what is TDD and how can be used it in functional programming like Elixir to design the small and the big parts of your system, showing what are the difference and the similarities between an OOP and FP environment. Showing what is the values of applying a technique like TDD in Elixir and what we should obtain applying it.

Salesforce Apex Hours:-Mitigate with Mono-Purpose MicroservicesAmit Chaudhary

Hello Everyone ! "Salesforce Apex Hours" is a recurring event to talk about salesforce ! Some times we'd like to meet on one location and some time online. This time we are planning one online session on "Microservices" job with Don Robins (Salesforce MVP). Agenda:- 1) Microservices –WHAT, WHY, HOW 2) My Microservice – PDFParser a practical mitigation use case 3) Sample Microservice demo and code walk thru 4) Take-aways and Links Thanks Amit Chaudhary @amit_sfdc

No Hugging, No LearningOlaf Alders

This document summarizes Olaf Alders' experience building and evolving a personal tracking application using various Perl web frameworks and tools. It describes his initial use of Dancer and later transition to Mojolicious, adoption of Minion for job queueing, migration from MySQL to Postgres, and shift from manual deployment to using Ansible for automation. The key lessons were learning new frameworks like Mojolicious and tools like Minion, Sqitch, and Ansible, as well as adopting practices like SSL and OAuth authentication.

JAVASCRIPT Test Driven Development & JasmineAnup Singh

The document discusses test driven development and the JavaScript testing framework Jasmine. It provides an overview of unit testing and test driven development processes. It then describes key aspects of Jasmine such as describing test suites and specifications, using matchers and assertions to test expectations, setting up tests using beforeEach and tearing them down using afterEach, creating custom matchers, spying on functions, and handling asynchronous tests. The document aims to introduce readers to testing JavaScript code using the Jasmine framework.

Working Effectively With Legacy CodeNaresh Jain

DevOps: The New Face Of Application Development - Global Azure BootcampRichard Harbridge

Behavior & Specification Driven Development in PHP - #OpenWestJoshua Warren

This document summarizes a presentation about using Behavior Driven Development (BDD) and Specification Driven Development (SDD) with PHP using the tools Behat and PHPSpec. It introduces BDD as focusing on complete features by writing user stories, while SDD focuses on writing specifications for how code should work before writing the code. The presentation demonstrates setting up a sample project using these tools, writing feature files and specifications, generating code stubs, implementing the code, and running the automated tests to verify everything works as specified.

Why test with flex unitmichael.labriola

The document discusses why software developers should use FlexUnit, an automated unit testing framework for Flex and ActionScript projects. It notes that developers spend 80% of their time debugging code and that errors found later in the development process can cost 100x more to fix than early errors. FlexUnit allows developers to automate unit tests so that tests can be run continually, finding errors sooner when they are cheaper to fix. Writing automated tests also encourages developers to write better structured, more testable and maintainable code. FlexUnit provides a testing architecture and APIs to facilitate automated unit and integration testing as well as different test runners and listeners to output test results.

London SF Developers: Custom Lightning Component Error HandlingRichard Clark

aka Essential Eight Lessons for Error Handling in Lightning Custom Component Development. Covering some of the common pitfalls of handling errors when developing Lightning Components and my own modest recommendations for how you can avoid them, plus some best practices. As part of my role at Provar I get asked to investigate when our customer's tests are seen to be failing in order to diagnose whether the fault is in Salesforce or a missing feature of Provar. I've learned the astonishing ways in which people are publishing code for Lightning Components without basic error handling to a point I'd argue is irresponsible! This led me down a deeper and deeper rabbit hole which, like Alice, I'd like to share so you can all safely reach the Lightning Wonderland!

Selenium & PHPUnit made easy with Steward (Berlin, April 2017)Ondřej Machulda

Introduction To Programming IP5Mark Simon

This document contains code for a Java program that handles errors and exceptions when taking user input and writing output to files. The code includes methods to get string and numeric input from the user, validate phone numbers, and calculate order totals. It uses exception handling to catch invalid inputs. The main method displays an opening message, gets customer details, and writes the order details to a text file. It outputs a final message summarizing the order details for the user.

Background threadmsarangam

Qtp 9.2 examplesmedsherb

Release with confidenceJohn Congdon

What is seleniumPesara Swamy

Training – Going AsyncBetclic Everest Group Tech Team

C# 5 deep drive into asynchronous programmingPraveen Prajapati

Introduction of exception in vb.netsuraj pandey

Ddd melbourne 2011 C# async ctpPratik Khasnabis

AsynchronousProgrammingDesignPatterns.pptxAbhishek Sagar

Tdd is not about testingGianluca Padovani

Salesforce Apex Hours:-Mitigate with Mono-Purpose MicroservicesAmit Chaudhary

No Hugging, No LearningOlaf Alders

JAVASCRIPT Test Driven Development & JasmineAnup Singh

Working Effectively With Legacy CodeNaresh Jain

DevOps: The New Face Of Application Development - Global Azure BootcampRichard Harbridge

Behavior & Specification Driven Development in PHP - #OpenWestJoshua Warren

Why test with flex unitmichael.labriola

London SF Developers: Custom Lightning Component Error HandlingRichard Clark

Selenium & PHPUnit made easy with Steward (Berlin, April 2017)Ondřej Machulda

Introduction To Programming IP5Mark Simon

Recently uploaded (20)

DVDFab Crack FREE Download Latest Version 2025younisnoman75

⭕️➡️ FOR DOWNLOAD LINK : http://drfiles.net/ ⬅️⭕️ DVDFab is a multimedia software suite primarily focused on DVD and Blu-ray disc processing. It offers tools for copying, ripping, creating, and editing DVDs and Blu-rays, as well as features for downloading videos from streaming sites. It also provides solutions for playing locally stored video files and converting audio and video formats. Here's a more detailed look at DVDFab's offerings: DVD Copy: DVDFab offers software for copying and cloning DVDs, including removing copy protections and creating backups. DVD Ripping: This allows users to rip DVDs to various video and audio formats for playback on different devices, while maintaining the original quality. Blu-ray Copy: DVDFab provides tools for copying and cloning Blu-ray discs, including removing Cinavia protection and creating lossless backups. 4K UHD Copy: DVDFab is known for its 4K Ultra HD Blu-ray copy software, allowing users to copy these discs to regular BD-50/25 discs or save them as 1:1 lossless ISO files. DVD Creator: This tool allows users to create DVDs from various video and audio formats, with features like GPU acceleration for faster burning. Video Editing: DVDFab includes a video editing tool for tasks like cropping, trimming, adding watermarks, external subtitles, and adjusting brightness. Video Player: A free video player that supports a wide range of video and audio formats. All-In-One: DVDFab offers a bundled software package, DVDFab All-In-One, that includes various tools for handling DVD and Blu-ray processing.

Download YouTube By Click 2025 Free Full Activatedsaniamalik72555

Best Practices for Collaborating with 3D Artists in Mobile Game DevelopmentJuego Studios

What Do Contribution Guidelines Say About Software Testing? (MSR 2025)Andre Hora

Software testing plays a crucial role in the contribution process of open-source projects. For example, contributions introducing new features are expected to include tests, and contributions with tests are more likely to be accepted. Although most real-world projects require contributors to write tests, the specific testing practices communicated to contributors remain unclear. In this paper, we present an empirical study to understand better how software testing is approached in contribution guidelines. We analyze the guidelines of 200 Python and JavaScript open-source software projects. We find that 78% of the projects include some form of test documentation for contributors. Test documentation is located in multiple sources, including CONTRIBUTING files (58%), external documentation (24%), and README files (8%). Furthermore, test documentation commonly explains how to run tests (83.5%), but less often provides guidance on how to write tests (37%). It frequently covers unit tests (71%), but rarely addresses integration (20.5%) and end-to-end tests (15.5%). Other key testing aspects are also less frequently discussed: test coverage (25.5%) and mocking (9.5%). We conclude by discussing implications and future research.

Mastering Fluent Bit: Ultimate Guide to Integrating Telemetry Pipelines with ...Eric D. Schabell

It's time you stopped letting your telemetry data pressure your budgets and get in the way of solving issues with agility! No more I say! Take back control of your telemetry data as we guide you through the open source project Fluent Bit. Learn how to manage your telemetry data from source to destination using the pipeline phases covering collection, parsing, aggregation, transformation, and forwarding from any source to any destination. Buckle up for a fun ride as you learn by exploring how telemetry pipelines work, how to set up your first pipeline, and exploring several common use cases that Fluent Bit helps solve. All this backed by a self-paced, hands-on workshop that attendees can pursue at home after this session (https://o11y-workshops.gitlab.io/workshop-fluentbit).

Why Orangescrum Is a Game Changer for Construction Companies in 2025Orangescrum

Not So Common Memory Leaks in Java WebinarTier1 app

This SlideShare presentation is from our May webinar, “Not So Common Memory Leaks & How to Fix Them?”, where we explored lesser-known memory leak patterns in Java applications. Unlike typical leaks, subtle issues such as thread local misuse, inner class references, uncached collections, and misbehaving frameworks often go undetected and gradually degrade performance. This deck provides in-depth insights into identifying these hidden leaks using advanced heap analysis and profiling techniques, along with real-world case studies and practical solutions. Ideal for developers and performance engineers aiming to deepen their understanding of Java memory management and improve application stability.

F-Secure Freedome VPN 2025 Crack Plus Activation New Versionsaimabibi60507

Get & Download Wondershare Filmora Crack Latest [2025]saniaaftab72555

Copy & Past Link 👉👉 https://dr-up-community.info/ Wondershare Filmora is a video editing software and app designed for both beginners and experienced users. It's known for its user-friendly interface, drag-and-drop functionality, and a wide range of tools and features for creating and editing videos. Filmora is available on Windows, macOS, iOS (iPhone/iPad), and Android platforms.

Odoo ERP for Education Management to Streamline Your Education ProcessiVenture Team LLP

LEARN SEO AND INCREASE YOUR KNOWLDGE IN SOFTWARE INDUSTRYNidaFarooq10

🌱 Green Grafana 🌱 Essentials_ Data, Visualizations and Plugins.pdfImma Valls Bernaus

eady to harness the power of Grafana for your HackUPC project? This session provides a rapid introduction to the core concepts you need to get started. We'll cover Grafana fundamentals and guide you through the initial steps of building both compelling dashboards and your very first Grafana app. Equip yourself with the essential tools to visualize your data and bring your innovative ideas to life!

Foundation Models for Time Series : A Surveyjayanthkalyanam1

Expand your AI adoption with AgentExchangeFexle Services Pvt. Ltd.

AgentExchange is Salesforce’s latest innovation, expanding upon the foundation of AppExchange by offering a centralized marketplace for AI-powered digital labor. Designed for Agentblazers, developers, and Salesforce admins, this platform enables the rapid development and deployment of AI agents across industries. Email: [email protected] Phone: +1(630) 349 2411 Website: https://www.fexle.com/blogs/agentexchange-an-ultimate-guide-for-salesforce-consultants-businesses/?utm_source=slideshare&utm_medium=pptNg

Proactive Vulnerability Detection in Source Code Using Graph Neural Networks:...Ranjan Baisak

As software complexity grows, traditional static analysis tools struggle to detect vulnerabilities with both precision and context—often triggering high false positive rates and developer fatigue. This article explores how Graph Neural Networks (GNNs), when applied to source code representations like Abstract Syntax Trees (ASTs), Control Flow Graphs (CFGs), and Data Flow Graphs (DFGs), can revolutionize vulnerability detection. We break down how GNNs model code semantics more effectively than flat token sequences, and how techniques like attention mechanisms, hybrid graph construction, and feedback loops significantly reduce false positives. With insights from real-world datasets and recent research, this guide shows how to build more reliable, proactive, and interpretable vulnerability detection systems using GNNs.

Secure Test Infrastructure: The Backbone of Trustworthy Software DevelopmentShubham Joshi

Kubernetes_101_Zero_to_Platform_Engineer.pptxCloudScouts

PDF Reader Pro Crack Latest Version FREE Download 2025mu394968

🌍📱👉COPY LINK & PASTE ON GOOGLE https://dr-kain-geera.info/👈🌍 PDF Reader Pro is a software application, often referred to as an AI-powered PDF editor and converter, designed for viewing, editing, annotating, and managing PDF files. It supports various PDF functionalities like merging, splitting, converting, and protecting PDFs. Additionally, it can handle tasks such as creating fillable forms, adding digital signatures, and performing optical character recognition (OCR).

Exceptional Behaviors: How Frequently Are They Tested? (AST 2025)Andre Hora

Exceptions allow developers to handle error cases expected to occur infrequently. Ideally, good test suites should test both normal and exceptional behaviors to catch more bugs and avoid regressions. While current research analyzes exceptions that propagate to tests, it does not explore other exceptions that do not reach the tests. In this paper, we provide an empirical study to explore how frequently exceptional behaviors are tested in real-world systems. We consider both exceptions that propagate to tests and the ones that do not reach the tests. For this purpose, we run an instrumented version of test suites, monitor their execution, and collect information about the exceptions raised at runtime. We analyze the test suites of 25 Python systems, covering 5,372 executed methods, 17.9M calls, and 1.4M raised exceptions. We find that 21.4% of the executed methods do raise exceptions at runtime. In methods that raise exceptions, on the median, 1 in 10 calls exercise exceptional behaviors. Close to 80% of the methods that raise exceptions do so infrequently, but about 20% raise exceptions more frequently. Finally, we provide implications for researchers and practitioners. We suggest developing novel tools to support exercising exceptional behaviors and refactoring expensive try/except blocks. We also call attention to the fact that exception-raising behaviors are not necessarily “abnormal” or rare.

WinRAR Crack for Windows (100% Working 2025)sh607827

DVDFab Crack FREE Download Latest Version 2025younisnoman75

Download YouTube By Click 2025 Free Full Activatedsaniamalik72555

Best Practices for Collaborating with 3D Artists in Mobile Game DevelopmentJuego Studios

What Do Contribution Guidelines Say About Software Testing? (MSR 2025)Andre Hora

Mastering Fluent Bit: Ultimate Guide to Integrating Telemetry Pipelines with ...Eric D. Schabell

Why Orangescrum Is a Game Changer for Construction Companies in 2025Orangescrum

Not So Common Memory Leaks in Java WebinarTier1 app

F-Secure Freedome VPN 2025 Crack Plus Activation New Versionsaimabibi60507

Get & Download Wondershare Filmora Crack Latest [2025]saniaaftab72555

Odoo ERP for Education Management to Streamline Your Education ProcessiVenture Team LLP

LEARN SEO AND INCREASE YOUR KNOWLDGE IN SOFTWARE INDUSTRYNidaFarooq10

🌱 Green Grafana 🌱 Essentials_ Data, Visualizations and Plugins.pdfImma Valls Bernaus

Foundation Models for Time Series : A Surveyjayanthkalyanam1

Expand your AI adoption with AgentExchangeFexle Services Pvt. Ltd.

Proactive Vulnerability Detection in Source Code Using Graph Neural Networks:...Ranjan Baisak

Secure Test Infrastructure: The Backbone of Trustworthy Software DevelopmentShubham Joshi

Kubernetes_101_Zero_to_Platform_Engineer.pptxCloudScouts

PDF Reader Pro Crack Latest Version FREE Download 2025mu394968

Exceptional Behaviors: How Frequently Are They Tested? (AST 2025)Andre Hora

WinRAR Crack for Windows (100% Working 2025)sh607827

Asynchronous Programming in C# - Part 1

1. Asynchronous Programming in C# - Part 1 Presenter: Vikash Kumar, Mindfire Solutions (28/07/2014)

2. About Me MCTS-70-515 - Microsoft .NET 4.0, Web App Development MCP:70-483: MS - Programming in C# Skills: MVC, Asp.Net WebForms, C#, EntityFramework, OpenAccess, TypeScript, SEO, jQuery, KendoUI, Lucene.Net, Asynchronous programming, Sql Server. Connect Me: Blog :- http://vikutech.blogspot.in/ Twitter :- https://twitter.com/viku85 LinkedIn :- http://www.linkedin.com/pub/vikash-kumar/11/4b5/625 Google+ :- https://plus.google.com/108754146104237310375 Contact Me: Email :- [email protected] / [email protected] Skype :- mfsi_vikash

3. Agenda  What is asynchronous?  Asynchronous programming options and history  Thread and ThreadPool  Asynchronous Programming Model (APM)  Event-based Asynchronous Pattern (EAP)  Task – Basics – Exception handling – Relationships

4. What is asynchronous? Image Source: http://www.webopedia.com/ To do more than one thing at a time. asyn = not with chronos = time

5. Asynchronous programming options and history  Thread  Asynchronous Programming Model (APM)  Event-Based Asynchronous Pattern (EAP)  BackgroundWorker  Task  Task Parallel Library - DataFlow  Task Parallel Library – Parallel APIs  Thread → APM → EAP → TAP

6. Thread and ThreadPool  Basic building block for async programming.  Parameterize thread, came with .NET 2.0 Image source:http://johnpaulmorabito.blogspot.in/

7. APM and EAP  APM depends upon Begin and End methods.  Callbacks are dependent on IAsyncResult.  EAP came with .NET 2.0 which automatically handles synchronization context.  BackgroundWorker is an example of EAP based programming.  EAP can be seen while adding web reference which automatically creates with proxies classes.

8. APM and EAP

9. Task  A task is an abstraction of unit of work to run asynchronously.  Ways to execute: new Task(Speak).Start(), Task.Factory.StartNew(Speak), Task.Run(Speak)  Use FromAsync when an API has BeginXXX/EndXXX.  Task can be canceled through CancellationToken and checked with ThrowIfCancellationRequested.  IProgress<T> came with 4.5 which can be used to show status

10. Task error handling  Task are completed with following state: Ran to Completion, Canceled and Faulted.  Task uses AggregateException to wrap up any other exception occurs which can be found under inner exception.  AggregateException comes with Flatten method to check all exceptions.  AggregateException also comes with Handle method which accepts predicate to handle errors.  ThrowUnobservedTaskExceptions to configure to shallow exception.

11. Cancellation FromAsync

12. Progress bar Exception handling

13. Task Relationships Task Task Task Task Child Tasks Task Task Task Chained Task

14. Task Relationships...  ContinueWhenXXX can be used to chain up tasks with TaskContinuationOptions enum for various conditions.  TaskCreationOptions.AttachedToParent is used to create child tasks.  Creating child task will reflect exception in parent task if exception occurs.  Task.Run uses TaskCreationOptions.DenyChildAttach by default which will act as nested task.

15. Task Relationship

16. Presenter: XXXX XXXX, Mindfire Solutions Question and Answer

17. References  Pro Asynchronous Programming with .NET  Asynchronous Programming Patterns  Asynchronous Programming in .NET: I'll Call You Bac (For definition)

18. Presenter: Vikash Kumar, Mindfire Solutions Thank you

19. www.mindfiresolutions.com https://www.facebook.com/MindfireSolutions http://www.linkedin.com/company/mindfire-solutions http://twitter.com/mindfires

Asynchronous Programming in C# - Part 1

Recommended

More Related Content

What's hot (20)

Similar to Asynchronous Programming in C# - Part 1 (20)

More from Mindfire Solutions (20)

Recently uploaded (20)

Asynchronous Programming in C# - Part 1