April 2016
Intermediate to advanced
1536 pages
44h 2m
English
Content preview from Professional C# 6 and .NET Core 1.0
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16 Reflection, Metadata, and Dynamic Programming
What’s In This Chapter?
- Using custom attributes
- Inspecting the metadata at runtime using reflection
- Building access points from classes that enable reflection
- Understanding the Dynamic Language Runtime
- Working with the dynamic type
- Hosting the DLR ScriptRuntime
- Creating dynamic objects with DynamicObject and ExpandoObject
Wrox.com Code Downloads for This Chapter
The wrox.com code downloads for this chapter are found at www.wrox.com/go/professionalcsharp6 on the Download Code tab. The code for this chapter is divided into the following major examples:
- LookupWhatsNew
- TypeView
- VectorClass
- WhatsNewAttributes
- DLRHost
- Dynamic
- DynamicFileReader
- ErrorExample
Inspecting Code at RunTime and Dynamic Programming
This chapter focuses on custom attributes, reflection, and dynamic programming. Custom attributes are mechanisms that enable you to associate custom metadata with program elements. This metadata is created at compile time and embedded in an assembly. Reflection is a generic term that describes the capability to inspect and manipulate program elements at runtime. For example, reflection allows you to do the following:
- Enumerate the members of a type
- Instantiate a new object
- Execute the members of an object
- Find out information about a type
- Find out information about an assembly
- Inspect the custom attributes applied to a type
- Create and compile a new assembly
This list represents a great deal of functionality and encompasses ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.