Implement multithreading and asynchronous processing
Use the Task Parallel library, including theParallel.For method, PLINQ, Tasks;create continuation tasks; spawn threads by using ThreadPool; unblock the UI; use async and await keywords; manage data by using concurrent collections
Manage multithreading
Synchronize resources; implement locking; cancel a long-running task; implement thread-safe methods to handle race conditions
Implement program flow
Iterate across collection and array items; program decisions by using switch statements, if/then, and operators; evaluate expressions
Create and implement events and callbacks
Create event handlers; subscribe to and unsubscribe from events; use built-in delegate types to create events; create delegates; lambda expressions; anonymous methods
Implement exception handling
Handle exception types, including SQL exceptions, network exceptions, communication exceptions, network timeout exceptions; use catch statements; use base class of an exception; implement try-catchfinally blocks; throw exceptions; rethrow an exception; create custom exceptions; handle inner exceptions; handle aggregate exception
Create types
Create value types, including structs and enum; create reference types, generic types, constructors, static variables, methods, classes, extension methods; create optional and named parameters; create indexed properties; create overloaded and overriden methods
Consume types
Box or unbox to convert between value types; cast types; convert types; handle dynamic types; ensure interoperability with code that accesses COM APIs
Enforce encapsulation
Enforce encapsulation by using properties; enforce encapsulation by using accessors, including public, private, protected, and internal; enforce encapsulation by using explicit interface implementation
Create and implement a class hierarchy
Design and implement an interface; inherit from a base class; create and implement classes based on the IComparable, IEnumerable, IDisposable, and IUnknown interfaces
Find, execute, and create types at runtime by using reflection
Create and apply attributes; read attributes; generate code at runtime by using CodeDom and Lambda expressions; use types from the System.Reflection namespace, including Assembly, PropertyInfo, MethodInfo, Type
Manage the object life cycle
Manage unmanaged resources; implement IDisposable, including interaction with finalization; manage IDisposable by using the Using statement; manage finalization and garbage collection
Manipulate strings
Manipulate strings by using the StringBuilder, StringWriter, and StringReader classes; search strings; enumerate string methods; format strings; use string interpolation
Validate application input
Validate JSON data; choose the appropriate data collection type; manage data integrity; evaluate a regular expression to validate the input format; use built-in functions to validate data type and content
Perform symmetric and asymmetric encryption
Choose an appropriate encryption algorithm; manage and create certificates; implement key management; implement the System.Security namespace; hash data; encrypt streams
Manage assemblies
Version assemblies; sign assemblies using strong names; implement side-by-side hosting; put an assembly in the global assembly cache; create a WinMD assembly
Debug an application
Create and manage preprocessor directives; choose an appropriate build type; manage program database files (debug symbols)
Implement diagnostics in an application
Implement logging and tracing; profiling applications; create and monitor performance counters; write to the event log
Perform I/O operations
Read and write files and streams; read and write from the network by using classes in the System.Net namespace; implement asynchronous I/O operations
Consume data
Retrieve data from a database; update data in a database; consume JSON and XML data; retrieve data by using web services
Query and manipulate data and objects by using LINQ
Query data by using operators, including projection, join, group, take, skip, aggregate; create methodbased LINQ queries; query data by using query comprehension syntax; select data by using anonymous types; force execution of a query; read, filter, create, and modify data structures by using LINQ to XML
Serialize and deserialize data
Serialize and deserialize data by using binary serialization, custom serialization, XML Serializer, JSON Serializer, and Data Contract Serializer
Store data in and retrieve data from collections
Store and retrieve data by using dictionaries, arrays, lists, sets, and queues; choose a collection type; initialize a collection; add and remove items from a collection; use typed vs. non-typed collections; implement custom collections; implement collection interfaces