using System;  using System.Collections.Generic;  using System.Linq;  using System.Text;  using System.Threading.Tasks;  using System.IO;  namespace EFLogging {      class Program {          private static CSharpCornerEntities context = new CSharpCornerEntities();          static void Main(string[] args) {              context.Database.Log = logInfo => FileLogger.Log(logInfo);              InsertEmployeeRecord();              UpdateEmployeeRecord(10024);              context.Database.Log = Console.Write;          }          private static void UpdateEmployeeRecord(long employeeID) {              //Linq              var empData = (from employee in context.Employees where employee.ID == employeeID select employee).FirstOrDefault();              //Lambda              //var empData = context.Employees.Where(a => a.ID.Equals(employeeID)).ToList();              empData.Location = "UK";              context.Entry(empData).State = System.Data.Entity.EntityState.Modified;              context.SaveChanges();          }          private static void InsertEmployeeRecord() {              context.Employees.Add(new Employee {                  Designation = "Software Engineer ", Location = "Chennai", Name = "DummyRecord"              });              context.SaveChanges();          }      }      public class FileLogger {          public static void Log(string logInfo) {              File.AppendAllText(@ "C:\Users\SMKG\Desktop\Logger.txt", logInfo);          }      }  }