/*
* C# Programmers Pocket Consultant
* Author: Gregory S. MacBeth
* Email: gmacbeth@comporium.net
* Create Date: June 27, 2003
* Last Modified Date:
* Version: 1
*/
using System;
using System.IO;
using System.Diagnostics;
namespace Client.Chapter_16___Debugging
{
public class Class1Chapter_16___Debugging
{
[STAThread]
static void Main(string[] args)
{
int i = 0;
Trace.Assert((i == 1), "My Trace Assertion");
Debug.Assert((i == 1), "My Debug Assertion");
}
}
}
Development Class
use the AddYears(), AddMonths(), AddDays(), AddMinutes(), and AddSeconds() methods to add periods to a DateTime
using System;
class MainClass {
public static void Main() {
DateTime myDateTime9 = new DateTime(2004, 1, 1);
Console.WriteLine("Initial myDateTime9 = " + myDateTime9);
myDateTime9 = myDateTime9.AddYears(1);
myDateTime9 = myDateTime9.AddMonths(5);
myDateTime9 = myDateTime9.AddDays(3);
myDateTime9 = myDateTime9.AddMinutes(30);
myDateTime9 = myDateTime9.AddSeconds(15);
Console.WriteLine("Final myDateTime9 = " + myDateTime9);
}
}
use the overloaded subtraction operator (-) to subtract a TimeSpan from a DateTime
using System;
class MainClass {
public static void Main() {
TimeSpan myTimeSpan = new TimeSpan(1, 2, 4, 10);
DateTime myDateTime6 = DateTime.Parse("1/13/2004 23:10:30");
DateTime myDateTime8 = myDateTime6 - myTimeSpan;
Console.WriteLine("myDateTime6 - myTimeSpan = " + myDateTime8);
}
}
use the overloaded addition operator (+) to add a TimeSpan to a DateTime
using System;
class MainClass {
public static void Main() {
TimeSpan myTimeSpan = new TimeSpan(1, 2, 4, 10);
DateTime myDateTime6 = DateTime.Parse("1/13/2004 23:10:30");
DateTime myDateTime8 = myDateTime6 + myTimeSpan;
Console.WriteLine("myDateTime6 + myTimeSpan = " + myDateTime8);
}
}
use the Subtract() method to subtract a TimeSpan from a DateTime
using System;
class MainClass {
public static void Main() {
TimeSpan myTimeSpan = new TimeSpan(1, 2, 4, 10);
DateTime myDateTime6 = DateTime.Parse("1/13/2004 23:10:30");
DateTime myDateTime7 = myDateTime6.Subtract(myTimeSpan);
Console.WriteLine("myDateTime6.Subtract(myTimeSpan) = " + myDateTime7);
}
}
use the Add() method to add a TimeSpan to a DateTime
using System;
class MainClass {
public static void Main() {
TimeSpan myTimeSpan = new TimeSpan(1, 2, 4, 10);
DateTime myDateTime6 = DateTime.Parse("1/13/2004 23:10:30");
DateTime myDateTime7 = myDateTime6.Add(myTimeSpan);
Console.WriteLine("myTimeSpan = " + myTimeSpan);
Console.WriteLine("myDateTime6.Add(myTimeSpan) = " + myDateTime7);
}
}
use the Parse() method to convert strings to DateTime instances
using System;
class MainClass {
public static void Main() {
DateTime myDateTime5 = DateTime.Parse("1/13/2004");
DateTime myDateTime6 = DateTime.Parse("1/13/2004 23:10:30");
Console.WriteLine("myDateTime5 = " + myDateTime5);
Console.WriteLine("myDateTime6 = " + myDateTime6);
}
}