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What is this?

Code samples created at the Dzaleka UNHCR refugee camp visit when training refugees in C# programming.

Samples

Deserialize Serialize

This sample show how to serialize and deserialize a Person class into JSON with Newtonsoft. It also shows how to write it to disk and how to use NuGet packages.

Web API REST

This sample uses WebAPISample, StudentConsole and SharedClassLibrary projects and demonstrates:

  • Creating a REST endpoint with WebAPI
  • Consuming the REST endpoint with the StudentConsole
  • Pushing new data to the REST endpoint
  • A simple storage with serializing objects to a file on disk
  • Sharing code via Class Libraries

This version of .NET returns XML and JSON when browsing the endpoint in the Chrome browser. To fix it, add the following to App_Start/WebApiConfig.cs file:

// Change the media formats to application/json and not the default application/xml
config.Formatters
    .JsonFormatter
    .SupportedMediaTypes
    .Add(new System.Net.Http.Headers.MediaTypeHeaderValue("text/html"));

Anonymous Functions

Showing how to use delegates and anonymous functions e.g.

TestDelegate testDelB = delegate (string s) { Console.WriteLine(s); };

Boxing

Showing reference types and value types. Boxing us casting a value type e.g. int to an object and unboxing is the reverse.

Linq Samples

A simple example of using Linq. Go here to see more advanced scenarios.

Also shows how to use Lambda functions, which is also anonymous functions and a delegates.

var scoreQuery2 = scores.Where((x) => x > 80);