Catch exception thrown from method - CSharp Custom Type

CSharp examples for Custom Type:Method

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Description

Catch exception thrown from method

Demo Code

using static System.Console;
using System;/*from   w w w  .  j  av a 2s  . c om*/
using System.Collections.Generic;
using System.Text.RegularExpressions;
class Program
{
   static void Main(string[] args)
   {
      Employee aliceInEmployee = new Employee{ Name = "Alice", EmployeeCode = "1234" };
      Person aliceInPerson = aliceInEmployee;
      aliceInEmployee.WriteToConsole();
      aliceInPerson.WriteToConsole();
      WriteLine(aliceInEmployee.ToString());
      WriteLine(aliceInPerson.ToString());
      try
      {
         aliceInEmployee.TimeTravel(new DateTime(1999, 12, 31));
         aliceInEmployee.TimeTravel(new DateTime(1950, 12, 25));
      }
      catch (PersonException ex)
      {
         WriteLine(ex.Message);
      }
   }
}
public class PersonException : Exception
{
   public PersonException() : base() { }
   public PersonException(string message) : base(message) { }
   public PersonException(string message,
   Exception innerException) : base(
   message, innerException)
   { }
}
public class Employee : Person
{
   public string EmployeeCode { get; set; }
   public DateTime HireDate { get; set; }
   public new  void WriteToConsole()
   {
      WriteLine($"{Name}'s birth date is {DateOfBirth:dd/MM/yy} and hire date was {HireDate:dd/MM/yy}");
   }
   public override string ToString()
   {
      return $"{Name}'s code is {EmployeeCode}";
   }
}
public class Person : IComparable<Person>
{
   public string Name;
   public DateTime DateOfBirth;
   public List<Person> Children = new List<Person>();
   public int CompareTo(Person other)
   {
      return Name.CompareTo(other.Name);
   }
   public void WriteToConsole()
   {
      WriteLine($"{Name} was born on {DateOfBirth:dddd, d MMMM yyyy}");
   }
   public override string ToString()
   {
      return $"{Name} is a {base.ToString()}";
   }
   public void TimeTravel(DateTime when)
   {
      if (when <= DateOfBirth)
      {
         throw new PersonException("exception");
      }
      else
      {
         WriteLine($"Welcome to {when:yyyy}!");
      }
   }
}

Result


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