using Newtonsoft.Json; // Serialize an object var obj = new { Name = "John", Age = 30 }; var json = JsonConvert.SerializeObject(obj); // Deserialize a JSON string var jsonString = "{\"Name\":\"John\",\"Age\":30}"; var objDeserialized = JsonConvert.DeserializeObject(jsonString);
using Microsoft.Extensions.DependencyInjection; // Set up dependency injection var serviceProvider = new ServiceCollection() .AddTransient() .BuildServiceProvider(); // Use the service var myService = serviceProvider.GetService (); myService.DoWork();
using System.Data.SqlClient; // Set up a connection string var connString = "Server=myServerName\\myInstanceName;Database=myDataBase;User Id=myUsername;Password=myPassword;"; // Execute a query var queryString = "SELECT * FROM MyTable"; using (var conn = new SqlConnection(connString)) using (var command = new SqlCommand(queryString, conn)) { conn.Open(); using (var reader = command.ExecuteReader()) { while (reader.Read()) { // Do something with the data } } }