Using C# Expression Trees in the Real World

This course explains what C# expression trees are, how to create and inspect them, and how Entity Framework and AutoMapper use them to translate queries and perform mapping. It also covers expression visitors, syntax generation, reflection, and rules-engine examples.

Syllabus

Introduction
lambda expressions
expression API
Real world talk
Entity Framework
Queryable
Expression Visitor
Expression Parts
Expression Visitors
AutoMapper
AutoMapper Example
AutoMapper Magic
Spencers Background
Model Mapping
Stored Procedures
Syntax Generators
Translating Expressions
The Result
A Closer Look
Cooking an Expression
Dotnet Fiddle
Rules Engine
Example
Expressions vs Reflection
Expressions are not perfect