I am looking to sort in C#

I am sorting from a .txt file which looks like this (without the Name Time and Age as the headers) called Runner.txt:

Name Time Age

--------------------

Steve 12 33

Tim 34 28

Mark 22 37

Tom 21 30

Cliff 13 33

Vini 17 28

Matt 10 28

Ben 9 29

Brandon 15 14

The output should look like this, where everything is in order by time:

Name Time Age Ranking

===== ==== === =======

Ben 9 29 1

Matt 10 28 2

Steve 12 33 1

Cliff 13 33 2

Brandon 15 14 1

Vini 17 28 3

Tom 21 30 3

Mark 22 37 4

Tim 34 28 4

Here is the rest of the code if you want to take a look:

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using System.IO;

namespace RaceResults

{

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent();

}

private void Form1_Load(object sender, EventArgs e)

{

List listRunner = new List();

List groupLessThan15 = new List();

List groupBetween15and29 = new List();

List groupGreaterThan29 = new List();

StreamReader myReader = new StreamReader("Runners.txt");

string line = "";

{

line = myReader.ReadLine();

if (line != null)

{

listRunner.Add(GetRunnerDetails(line));

}

while (line != null);

myReader.Close();

groupLessThan15 = GetGroupBasedOnAgeLimits(0, 15, listRunner);

groupBetween15and29 = GetGroupBasedOnAgeLimits(16, 29, listRunner);

groupGreaterThan29 = GetGroupBasedOnAgeLimits(30, 100, listRunner);

AssignRanks(ref groupLessThan15);

AssignRanks(ref groupBetween15and29);

AssignRanks(ref groupGreaterThan29);

List mergedList = new List(groupLessThan15.Count + groupBetween15and29.Count + groupGreaterThan29.Count);

mergedList.AddRange(groupLessThan15);

mergedList.AddRange(groupBetween15and29);

mergedList.AddRange(groupGreaterThan29);

dataGridView1.DataSource = mergedList;

}

private static RunnersInfo GetRunnerDetails(string line)

{

RunnersInfo runner = new RunnersInfo();

try

{

string[] token = line.Split(' ');

runner.Name = token[0];

runner.Time = int.Parse(token[1]);

runner.Age = int.Parse(token[2]);

}

catch (Exception ex)

{

Console.WriteLine(ex.Message);

}

return runner;

}

private static List GetGroupBasedOnAgeLimits(int StartAge, int EndAge, List lstRunners)

{

List Group = new List();

foreach (RunnersInfo R in lstRunners)

{

if (R.Age >= StartAge && R.Age <= EndAge) Group.Add(R);

}

return Group;

}

private static void AssignRanks(ref List list)

{

int Rank = 1;

foreach (RunnersInfo r in list)

{

r.Ranking = Rank;

Rank++;

}

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

Howard Schuchman11y ago
I am sorting from a .txt file which looks like this (without the Name Time and Age as the headers) called Runner.txt:
Name Time Age
--------------------
Steve 12 33
Tim 34 28
Mark 22 37
Tom 21 30
Cliff 13 33
Vini 17 28
Matt 10 28
Ben 9 29
Brandon 15 14

The output should look like this, where everything is in order by time:

Name Time Age Ranking
===== ==== === =======
Ben 9 29 1
Matt 10 28 2
Steve 12 33 1
Cliff 13 33 2
Brandon 15 14 1
Vini 17 28 3
Tom 21 30 3
Mark 22 37 4
Tim 34 28 4

Here is the rest of the code if you want to take a look:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
namespace RaceResults
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
List listRunner = new List();
List groupLessThan15 = new List();
List groupBetween15and29 = new List();
List groupGreaterThan29 = new List();
StreamReader myReader = new StreamReader("Runners.txt");
string line = "";
do
{
line = myReader.ReadLine();
if (line != null)
{
listRunner.Add(GetRunnerDetails(line));
}
}
while (line != null);
myReader.Close();
groupLessThan15 = GetGroupBasedOnAgeLimits(0, 15, listRunner);
groupBetween15and29 = GetGroupBasedOnAgeLimits(16, 29, listRunner);
groupGreaterThan29 = GetGroupBasedOnAgeLimits(30, 100, listRunner);
AssignRanks(ref groupLessThan15);
AssignRanks(ref groupBetween15and29);
AssignRanks(ref groupGreaterThan29);
List mergedList = new List(groupLessThan15.Count + groupBetween15and29.Count + groupGreaterThan29.Count);
mergedList.AddRange(groupLessThan15);
mergedList.AddRange(groupBetween15and29);
mergedList.AddRange(groupGreaterThan29);
dataGridView1.DataSource = mergedList;

}
private static RunnersInfo GetRunnerDetails(string line)
{
RunnersInfo runner = new RunnersInfo();
try
{
string[] token = line.Split(' ');
runner.Name = token[0];
runner.Time = int.Parse(token[1]);
runner.Age = int.Parse(token[2]);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
return runner;
}
private static List GetGroupBasedOnAgeLimits(int StartAge, int EndAge, List lstRunners)
{
List Group = new List();
foreach (RunnersInfo R in lstRunners)
{
if (R.Age >= StartAge && R.Age <= EndAge) Group.Add(R);
}
return Group;
}
private static void AssignRanks(ref List list)
{
int Rank = 1;
foreach (RunnersInfo r in list)
{
r.Ranking = Rank;
Rank++;
}
}

}
}
Pankaj Kumar Choudhary11y ago
Hello @Howard can you explain what is mean of sort in c# here.

Are you want to sort the array of Runner Objects..........