Home Backend Development C++ What Does C#'s `dynamic` Keyword Do?

What Does C#'s `dynamic` Keyword Do?

Jan 18, 2025 pm 06:41 PM

What Does C#'s `dynamic` Keyword Do?

What is the 'dynamic' Type in C# 4.0 Used For?

C# 4.0 introduced a revolutionary concept: the 'dynamic' type. While optional arguments and simplified COM APIs were significant additions, the dynamic type holds a unique role.

Empowering Interoperability with Dynamic Languages

The dynamic keyword bridges the gap between C# and dynamically typed languages like Python, Ruby, and JavaScript. It enables programmers to interact with these objects using C# syntax, eliminating the complexities associated with directly manipulating them.

Simplifying Cross-Runtime Interactions

Consider a scenario where you want to work with a COM object. Before C# 4.0, you were required to pass parameters through an unintuitive process involving multiple reference keywords and missing values.

With the dynamic type, this becomes much more readable and manageable. Simply call the method with named arguments, and C# will handle the necessary runtime conversions transparently.

The Dynamic Runtime

Behind the scenes, the dynamic keyword leverages a set of runtime classes that interpret your code and translate it into the appropriate API calls for different types of objects. This effectively hides the complexity of interoperability from the programmer.

Intended Usage

It's important to note that the dynamic type is not intended to replace strongly typed code within C#. Its primary purpose remains facilitating interactions with dynamic objects from other runtimes.

Exploration and Alternatives

For a deeper dive into the dynamic type, consider the following resources:

  • DevDays 2010: Anders Hejlsberg - C# 4.0 and beyond
  • Channel 9: Mads Torgersen - Inside C# 4.0: dynamic typing
  • DevX: COM Interop Gets Much Better in C# 4.0
  • Scott Hanselman - C# 4 and the dynamic keyword - Whirlwind Tour around .NET 4 (and Visual Studio 2010) Beta 1

The above is the detailed content of What Does C#'s `dynamic` Keyword Do?. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Hot Topics

Java Tutorial
1663
14
PHP Tutorial
1266
29
C# Tutorial
1238
24
C# vs. C  : History, Evolution, and Future Prospects C# vs. C : History, Evolution, and Future Prospects Apr 19, 2025 am 12:07 AM

The history and evolution of C# and C are unique, and the future prospects are also different. 1.C was invented by BjarneStroustrup in 1983 to introduce object-oriented programming into the C language. Its evolution process includes multiple standardizations, such as C 11 introducing auto keywords and lambda expressions, C 20 introducing concepts and coroutines, and will focus on performance and system-level programming in the future. 2.C# was released by Microsoft in 2000. Combining the advantages of C and Java, its evolution focuses on simplicity and productivity. For example, C#2.0 introduced generics and C#5.0 introduced asynchronous programming, which will focus on developers' productivity and cloud computing in the future.

The Future of C   and XML: Emerging Trends and Technologies The Future of C and XML: Emerging Trends and Technologies Apr 10, 2025 am 09:28 AM

The future development trends of C and XML are: 1) C will introduce new features such as modules, concepts and coroutines through the C 20 and C 23 standards to improve programming efficiency and security; 2) XML will continue to occupy an important position in data exchange and configuration files, but will face the challenges of JSON and YAML, and will develop in a more concise and easy-to-parse direction, such as the improvements of XMLSchema1.1 and XPath3.1.

The Continued Use of C  : Reasons for Its Endurance The Continued Use of C : Reasons for Its Endurance Apr 11, 2025 am 12:02 AM

C Reasons for continuous use include its high performance, wide application and evolving characteristics. 1) High-efficiency performance: C performs excellently in system programming and high-performance computing by directly manipulating memory and hardware. 2) Widely used: shine in the fields of game development, embedded systems, etc. 3) Continuous evolution: Since its release in 1983, C has continued to add new features to maintain its competitiveness.

C   Multithreading and Concurrency: Mastering Parallel Programming C Multithreading and Concurrency: Mastering Parallel Programming Apr 08, 2025 am 12:10 AM

C The core concepts of multithreading and concurrent programming include thread creation and management, synchronization and mutual exclusion, conditional variables, thread pooling, asynchronous programming, common errors and debugging techniques, and performance optimization and best practices. 1) Create threads using the std::thread class. The example shows how to create and wait for the thread to complete. 2) Synchronize and mutual exclusion to use std::mutex and std::lock_guard to protect shared resources and avoid data competition. 3) Condition variables realize communication and synchronization between threads through std::condition_variable. 4) The thread pool example shows how to use the ThreadPool class to process tasks in parallel to improve efficiency. 5) Asynchronous programming uses std::as

C# vs. C  : Learning Curves and Developer Experience C# vs. C : Learning Curves and Developer Experience Apr 18, 2025 am 12:13 AM

There are significant differences in the learning curves of C# and C and developer experience. 1) The learning curve of C# is relatively flat and is suitable for rapid development and enterprise-level applications. 2) The learning curve of C is steep and is suitable for high-performance and low-level control scenarios.

C   and XML: Exploring the Relationship and Support C and XML: Exploring the Relationship and Support Apr 21, 2025 am 12:02 AM

C interacts with XML through third-party libraries (such as TinyXML, Pugixml, Xerces-C). 1) Use the library to parse XML files and convert them into C-processable data structures. 2) When generating XML, convert the C data structure to XML format. 3) In practical applications, XML is often used for configuration files and data exchange to improve development efficiency.

The C   Community: Resources, Support, and Development The C Community: Resources, Support, and Development Apr 13, 2025 am 12:01 AM

C Learners and developers can get resources and support from StackOverflow, Reddit's r/cpp community, Coursera and edX courses, open source projects on GitHub, professional consulting services, and CppCon. 1. StackOverflow provides answers to technical questions; 2. Reddit's r/cpp community shares the latest news; 3. Coursera and edX provide formal C courses; 4. Open source projects on GitHub such as LLVM and Boost improve skills; 5. Professional consulting services such as JetBrains and Perforce provide technical support; 6. CppCon and other conferences help careers

Modern C   Design Patterns: Building Scalable and Maintainable Software Modern C Design Patterns: Building Scalable and Maintainable Software Apr 09, 2025 am 12:06 AM

The modern C design model uses new features of C 11 and beyond to help build more flexible and efficient software. 1) Use lambda expressions and std::function to simplify observer pattern. 2) Optimize performance through mobile semantics and perfect forwarding. 3) Intelligent pointers ensure type safety and resource management.

See all articles