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.Net programming with C#
- 1. .NET Programming with C# Hanoi University of Science and Technology
- 2. Module 1: Overview of the Microsoft .NET framework
- 3. Overview of the Microsoft .NET framework • The .NET framework • Common language runtime • The .NET framework class library • ADO.NET: Data and XML • XML Web service • Web forms and services
- 9. The .NET framework class library
- 10. ADO.NET: Data and XML
- 11. XML Web service
- 12. Web forms and services
- 13. Overview of Namespaces • Namespaces • Some commonly used namespaces • Other important namespaces
- 14. Namespaces
- 15. Namespaces
- 16. Some commonly used namespaces • System.Console • System.Windows.Forms • System.Drawing • System.Reflection • System.Text • System.Collections • System.IO • System.Net • System.Net.Sockets • System.Runtime.Serialization • System.Runtime.Remoting.Channels • System.Web.Services
- 17. Other important namespaces • System.Threading • System.Data • System.Reflection
- 18. Module 2: Introduction to a Managed Execution Environment
- 19. Overview
- 20. Writing a .NET application
- 22. Demonstration: Hello World • Compile the source code from Visual Studio .NET Command Promt csc HelloDemoCS.cs • Running the resulting executable file and see the output Hello World using C#! • Viewing assembly metadata by using MSIL (ildasm.exe)
- 24. Defining a Namespace and a Class
- 25. Entry Points, Scope and Declarations
- 26. Console Input and Output
- 27. Case Sensitivity
- 28. Compiling and Running a .NET Application
- 29. Compiler Options
- 30. The Process of Managed Execution
- 31. The Process of Managed Execution • Compilation outputs an executable module (PE – portable executable) • Microsoft Intermediate Language (MSIL): CPU-independent set of instructions that can be converted to native code efficiently • Type Metadata: types, members, references used by CLR at runtime • Resources: .jpg, .bmp, .wav,… • When a user executes a managed application: • Operating System loads CLR • CLR converts MSIL instructions to native code (only when needed - JIT) • JIT improve the memory usage and initialization time
- 32. Metadata
- 34. Microsoft Intermediate Language • MSIL is a CPU-independent language • MSIL contains instructions for many common operations: • Creating and initializing objects • Calling methods • Arithmetic and logical operations • Control flow • Memory access • Exception handling • … • MSIL must be converted to CPU-specific (native) code by a JIT compiler
- 35. Assemblies
- 36. Common Language Runtime Tools
- 39. Just-In-Time Compilation • The code execution process • CLR loads class types and attach stub code to each method (can be considered as kind of pseudo-code) • For subsequent method calls, the stub directs program execution to CLR for compiling the method’s MSIL to native code • The stub code is replaced by the address of compiled native code • Future calls to a compiled method will not involve the JIT compiler
- 44. Module 3: Working with Components
- 45. Overview
- 46. An Introduction to Key .NET Framework Development Technologies
- 47. Windows Forms • To develop applications in which the client computer handles most of the application processing • System.Windows.Forms contains classes used to create Windows forms
- 48. Web Forms • To create applications in which the primary user interface is a browser • Web Forms applications are platform-independent • System.Web contains classes to create Web Forms
- 49. XML Web Services • A programmable entity residing on a Web server and is exposed through standard Internet protocols • Programming using XML web services is similar to using COM-based component (local library) • XML web services are using SOAP for transferring messages from/to a Web server, SOAP is almost transparent to the developer
- 50. Creating a Simple .NET Framework Component
- 51. Creating a Simple .NET Framework Component • The component provides a simple wrappers for string array • String GetString(int i): return the string at index i • Read-Only Count: number of strings in the array • Structured exception handling
- 52. Using Namespaces and Declaring the Class
- 53. Creating the Class Implementation
- 54. Implementing Structured Exception Handling
- 57. Creating a Simple Console Client
- 62. Demonstration: Creating a Windows Forms Client
- 63. Creating an ASP.NET Client
- 64. Writing the HTML for the ASP.NET Application
- 65. Coding the Page_Load Event Handler
- 66. Generating the HTML Response
- 67. Demonstration: Testing the ASP.NET Client
- 68. Module 4: Deployment and Versioning
- 69. Overview
- 70. Introduction to Application Deployment
- 71. Common Concepts • Class libraries are organized in hierarchical namespaces and stored in PE files (dll, exe) • A PE file may contain multiple namespaces and vice versa • Metadata describes all the classes and types • PE files and non-executable files are combined in to a assembly file • Metadata describes files in one assembly file, exported and imported classes and types
- 72. Simple Applications • A simplest .NET app can be executed on any computer as long as .NET runtime is installed • No registry, no external dll, no registration… (like COM/COM++ or old DLL- based software)
- 73. Componentized Applications • Componentized application deployment is more complicated depending on how it shares the components
- 78. Specifying a Path for Private Assemblies
- 79. A Strong-Named Assembly • A component may be shared among many unrelated applications. That component should be strongly named and located in the OS assembly cache • Let’s discuss about dll- sharing in the conventional way • How to call API dynamically • How the dll is located • What are the disadvantages • Let’s discuss about COM- based dll sharing
- 82. Creating Multiple Versions of a Strong-Named Assembly
- 83. Binding Policy
- 84. Binding Policy
- 85. Deploying Multiple Versions of a Strong- Named Assembly
- 86. Related Topics and Tools
- 87. Related Topics
- 88. Packaging and Deployment Tools
- 89. Module 5: Common Type System
- 90. Overview
- 91. An Introduction to Common Type System
- 92. An Introduction to Common Type System
- 93. An Introduction to Common Type System • Value Types • Reference Types • Fields, Methods and Properties • Interfaces: merely description of methods, properties and events
- 94. Value Types vs. Reference Type
- 95. Elements of CTS
- 96. Primitive Types
- 97. Objects
- 98. Constructors
- 99. Properties
- 100. Custom Types
- 101. Enumerations
- 102. Bit Flags
- 103. Interfaces
- 105. Abstraction
- 106. Encapsulation
- 107. Encapsulation
- 108. Inheritance
- 109. Polymorphism
- 110. Polymorphism
- 111. Sealed
- 112. Module 6: Working with Types
- 113. Overview
- 115. Hash Code
- 116. Identity
- 117. Equality
- 120. Static Constructors
- 122. Private Constructors
- 123. Type Operators
- 124. Conversions
- 125. Conversion Operators
- 126. Casting
- 127. Casting
- 128. Type Operators • is: determine if an object is of a specific type • as: convert an object to a specific type, if type is not matched null is return (it’s different from casting) • typeof: return the type of an object
- 129. Casting Interfaces
- 130. Boxing
- 131. How Boxing Works • Boxing: • A value type is coped from the stack to the heap • An object is allocated on the heap to store the value • Unboxing: • Value is coped from the heap to a variable on the stack • InvalidCastException may occur
- 132. Performance VS
- 133. Performance
- 134. Interfaces
- 136. Base Class Interface
- 139. PInvoke