Пример #1
0
        /// <summary>
        /// Feature 9: Await in catch/finally
        /// </summary>
        private static async void Faeture9()
        {
            System.Console.WriteLine("Feature 9: Await in catch/finally");

            try
            {
                // var pMan = new Person(null);

                var pMan = new Person("         ");
            }
            catch (Exception ex) when (logException(ex))
            {
            }
            catch (ArgumentNullException ex) 
            {
                await LogErrorToFileAsync("Names cannot be null", ex);
            }
            catch (ArgumentException ex2) when (!Debugger.IsAttached)
            {
                await LogErrorToFileAsync("Names cannot be blank", ex2);
            }
            finally
            {
                System.Console.ReadKey();
                System.Console.WriteLine("");
            }
        }
Пример #2
0
        /// <summary>
        /// Feature 8: Exception filters
        /// </summary>
        private static void Feature8()
        {
            System.Console.WriteLine("Feature 8: Exception filters");

            try
            {
                // var pMan = new Person(null);

                var pMan = new Person("         ");
            }
            catch (Exception ex) when (logException(ex))
            {
            }
            catch (Exception) when (!Debugger.IsAttached)
            {
                System.Console.WriteLine("Debugger is not attached!");
            }
            finally
            {
                System.Console.ReadKey();
                System.Console.WriteLine("");
            }
        }
Пример #3
0
 public void Married(Person person) => FamilyName = person?.FamilyName;
Пример #4
0
 // old style
 public void MarriedOldStyle(Person person)
 {
     if( person != null)
     {
         FamilyName = person.FamilyName;
     }
 }
Пример #5
0
        /// <summary>
        /// Feature 1: Read only property
        /// </summary>
        private static void Feature1()
        {
            System.Console.WriteLine("Feature 1: Read only property");

            var p = new Person(new DateTime(1969, 4, 4));

            System.Console.WriteLine(p.Birthday);

            System.Console.ReadKey();
            System.Console.WriteLine("");
        }
Пример #6
0
        /* 
        // Don't work with Sqrt from System.Math
        double Sqrt(double number)
        {
            return number;
        }
        */


        /// <summary>
        /// Feature 2: Expression bodied function members
        /// </summary>
        private static void Feature2()
        {
            System.Console.WriteLine("Feature 2: Expression bodied function members");

            var pMan = new Person(new DateTime(1969, 4, 4))
            {
                FirstName = "Michael",
                FamilyName = "Hürtgen"
            };

            System.Console.WriteLine("Full name: " + pMan.FullName);
            System.Console.WriteLine("Character at Index 2: " + pMan.FullName[2]);

            System.Console.ReadKey();

            var pWoman = new Person(new DateTime(1974, 5, 10))
            {
                FirstName = "Diana",
                FamilyName = "Sacchi"
            };

            System.Console.WriteLine("Full name of bride: " + pWoman.FullName);
            pWoman.Married(pMan);
            System.Console.WriteLine("After marriage : " + pWoman.FullName);

            System.Console.ReadKey();
            System.Console.WriteLine("");
        }
Пример #7
0
        /// <summary>
        /// Feature 4: String Interpolation
        /// </summary>
        private static void Feature4()
        {
            System.Console.WriteLine("Feature 4: String Interpolation");

            var pMan = new Person(new DateTime(1969, 4, 4))
            {
                FirstName = "Michael",
                FamilyName = "Hürtgen",
                IsMale = true
            };

            // so far....
            System.Console.WriteLine("Name : " + pMan.FullName + " Birthday: " + pMan.Birthday.ToShortDateString());

            System.Console.WriteLine("");

            // with string interpolation...
            System.Console.WriteLine(
                $"Name : {pMan.FullName} Birthday: {pMan.Birthday.ToShortDateString()} Male: {(pMan.IsMale ? "Yes" : "No")}");

            System.Console.ReadKey();
            System.Console.WriteLine("");
        }
Пример #8
0
        /// <summary>
        /// Feature 5: name of
        /// </summary>
        private static void Feature5()
        {
            System.Console.WriteLine("Feature 5: name of");

            var pMan = new Person(new DateTime(1969, 4, 4))
            {
                FirstName = "Michael",
                FamilyName = "        "
            };

            if(string.IsNullOrWhiteSpace(pMan.FamilyName))
            {
                System.Console.WriteLine($"Property {nameof(pMan.FamilyName)} is null or white space.");
            }
            
            System.Console.ReadKey();
            System.Console.WriteLine("");
        }
Пример #9
0
        /// <summary>
        /// Feature 6: null conditional operator
        /// </summary>
        private static void Feature6()
        {
            System.Console.WriteLine("Feature 6: null conditional operator");

            var pMan = new Person(new DateTime(1969, 4, 4))
            {
                FirstName = "Michael",
                FamilyName = "Hürtgen"
            };

            pMan.Married(null);

            pMan.MarriedOldStyle(null);

            System.Console.WriteLine($"Full name: {pMan?.FullName}");

            System.Console.ReadKey();
            System.Console.WriteLine("");
        }