Solved

Get all years between TWO years returned as a array ?

Posted on 2009-04-01
8
164 Views
Last Modified: 2012-05-06
Hello,

I have this:

startYear = 2005
todaysYear = 2009

Now I want all years between those 2 dates , this would be 2006,2007,2008 returned in a array does there exist already such a function?

I want to iterate in a for loop through that array and get access to every single year and do some stuff with it.
0
Comment
Question by:MSFanboy
8 Comments
 
LVL 26

Expert Comment

by:Anurag Thakur
ID: 24040504
jsut create a function and loop in that for the start year to the end year and add the years found in a List<int> object
you will get a int list and you can do whatever you want to do that

i dont think there is a function which will give you the year values between 2 dates
yes you can get the count of no. of years from 2 dates
0
 
LVL 4

Accepted Solution

by:
amazingwolf1 earned 250 total points
ID: 24040647
here it is, call it like this:

int[] res = GetYears(2009, 2005);
public int[] GetYears(int iUpper, int iLower)
    {
        int iGap;
        int[] resultArray;
 
        iGap = iUpper - iLower - 1;
 
        // check if this is the same year
        if (iGap <= 0)
        {
            resultArray = new int[1];
            resultArray[0] = iUpper;
        }
        else
        {
            resultArray = new int[iGap];
            for (int i = iLower + 1, index = 0; i < iUpper; i++, index++)
            {
                resultArray[index] = i;
            }
        }
 
        return resultArray;
    }

Open in new window

0
 
LVL 85

Assisted Solution

by:Mike Tomlinson
Mike Tomlinson earned 250 total points
ID: 24040775
Not sure why you need an array...couldn't you just use your year values directly in a for loop?

            int startYear = 2005;
            int stopYear = 2009;
            for (int year = startYear; year <= stopYear; year++)
            {
                Console.WriteLine(year.ToString());
            }

But if you really want an Array, I like ragi's suggestion:
(one your your PAQs dealt w/ VS2008 so I'm pretty sure you have List<T>)
(furthermore, instead of an Array, why not just deal with the List directly?)
        private void button1_Click(object sender, EventArgs e)
        {
            int[] years = GetYears(2005, 2009);
            foreach (int year in years)
            {
                Console.WriteLine(year.ToString());
            }
        }
 
        private int[] GetYears(int startYear, int endYear)
        {
            List<int> years = new List<int>();
            for (int y = startYear; y <= endYear; y++)
            {
                years.Add(y);
            }
            return years.ToArray();
        }

Open in new window

0
Active Directory Webinar

We all know we need to protect and secure our privileges, but where to start? Join Experts Exchange and ManageEngine on Tuesday, April 11, 2017 10:00 AM PDT to learn how to track and secure privileged users in Active Directory.

 

Author Comment

by:MSFanboy
ID: 24041976
Hm seems the info I gave u was not 100% from my side:

The user inputs e.g. "X" what means X years back into the past. I wanted a native method for it but it does not exist so I had to write my own:

You should NOT take todayYear = 2009 literally it can be also 2010,2200 or 25000 ... so I ca not guess this date just get DateTime.Now and do stuff on it



foreach (var s in YearsList(6))
            {
                    Console.WriteLine("Jahr: " + s);
            }
 
public string[] YearsList(int value)
        {
            var yearsArray = new string[value];
            for (int i = 0; i < value; i++)
            {
                yearsArray[i] = DateTime.Now.AddYears(-i).ToString("yyyy");
            }
 
            return yearsArray;
        }

Open in new window

0
 
LVL 4

Expert Comment

by:amazingwolf1
ID: 24047497
Since the original questions was not clear enough, and MSFanboy did not state clearly that he ONLY wants a native function. I gave him a full solution here with the code, and I feel it would be an error to approve to MSFanboy request.
0
 
LVL 4

Expert Comment

by:amazingwolf1
ID: 24071733
I recommend #3 - Accept one or more Expert posts as the answer. I suggest posts
http:#a24040647, http:#a24040775, http:#a24041976 will be the answers.
0

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Extention Methods in C# 3.0 by Ivo Stoykov C# 3.0 offers extension methods. They allow extending existing classes without changing the class's source code or relying on inheritance. These are static methods invoked as instance method. This…
Calculating holidays and working days is a function that is often needed yet it is not one found within the Framework. This article presents one approach to building a working-day calculator for use in .NET.
Email security requires an ever evolving service that stays up to date with counter-evolving threats. The Email Laundry perform Research and Development to ensure their email security service evolves faster than cyber criminals. We apply our Threat…
Although Jacob Bernoulli (1654-1705) has been credited as the creator of "Binomial Distribution Table", Gottfried Leibniz (1646-1716) did his dissertation on the subject in 1666; Leibniz you may recall is the co-inventor of "Calculus" and beat Isaac…

821 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question