C# search list for a certain name and print matches

Lucas Maidment

Uploaded my code so far, really stuck on a step to search the list for a particular name / city and return results

the only code im having trouble with is

if (x.Find("Sydney"))

{

}

Just not sure how i call the method or if i have to make my own search?

12 Replies

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

Iftikar Hussain13y ago
you can do like this

Console.WriteLine("\n-------------------Stage 5 Find Cards in Sydney----------------------\n");

foreach (CreditCard x in cards)
{
bool isFound=x.FindCard();
if(isFound)
{
break;
}
}

public bool FindCard()
{
bool temp=false;
if (City == "Sydney")
{
PrintRecord();
temp=true;
}
return temp;

}

Regards,
Iftikar
Lucas Maidment13y ago
Yeah i didnt think a method was a good way but my tutors excercise asks for it in a method ><'

Will the break work aswell if i execute it inside the method?
Iftikar Hussain13y ago
you can put break point , don't use FindCard method

Console.WriteLine("\n-------------------Stage 5 Find Cards in Sydney----------------------\n");

foreach (CreditCard x in cards)
{
if (x.City=="Sydney")
{
//print to console ..
break;
}
}

Regards,
Iftikar
Lucas Maidment13y ago
I know there is a function List.find but not sure how to implement it
Lucas Maidment13y ago
Hey guys,
Carrying on from this, is there any way to alter the answer into a method format that will only return the first answer?

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Lecture_01a
{
class Program
{
static void Main(string[] args)
{
CreditCard a = new CreditCard(1, "Lucas", "Sydney", 350, 220);
CreditCard b = new CreditCard(2, "Chris", "Brisbane", 25, 201);
CreditCard c = new CreditCard(3, "Paul", "Wollongong", 320, 120);
CreditCard d = new CreditCard(4, "James", "Sydney", 1500, 1120);

List cards = new List();
cards.Add(a);
cards.Add(b);
cards.Add(c);
cards.Add(d);

List cards2 = new List();

Console.WriteLine("-----------------------Stage 1-3 Print List------------------------");

foreach (CreditCard x in cards)
{

x.PrintRecord();

}

Console.WriteLine("\n-------------------Stage 4 Total Balance of List---------------------\n");

double TotalBalance = 0;
foreach (CreditCard x in cards)
{
TotalBalance += x.Balance;
}

Console.WriteLine("Total Balance:" + TotalBalance);

Console.WriteLine("\n-------------------Stage 5 Find Cards in Sydney----------------------\n");

foreach (CreditCard x in cards)
{
x.FindCard();
}


Console.WriteLine("\n-------------------Stage 6 Shallow / Deep Copies---------------------\n");
Console.WriteLine("----------------------------Deep Copy------------------------------------");
foreach (CreditCard x in cards)
{
cards2.Add(x.duplicate());
}

foreach (CreditCard x in cards2)
{
x.PrintRecord();
}


Console.WriteLine("\n------------------------Shallow Copy-------------------------------");

foreach (CreditCard x in cards)
{
cards2.Add(x);
}

foreach (CreditCard x in cards2)
{
x.PrintRecord();
}
Console.ReadLine();
}

}

public class CreditCard
{
private int id;
private string name;
private string city;
private double limit;
private double balance;

public CreditCard(int id, string name, string city, double limit, double balance)
{
this.id = id;
this.name = name;
this.city = city;
this.limit = limit;
this.balance = balance;
}

public void PrintRecord()
{

Console.WriteLine("\nID: " + id + "\nName: " + name + "\nCity: " + city + "\nLimit: " + limit + "\nBalance: " + balance);

}

public CreditCard duplicate()
{
return new CreditCard (this.id, this.name, this.city, this.limit, this.balance);

}

public void FindCard()
{

if (City == "Sydney")
{
PrintRecord();

}

}

public int Id
{
get { return id; }
}

public string Name
{
get { return name; }
set { name = value; }
}

public string City
{
get { return city; }
set { city = value; }
}

public double Limit
{
get { return limit; }
set { limit = value; }
}

public double Balance
{
get { return balance; }
set { balance = value; }
}

}
}

Thats my entire code, the only relevant parts are under stage 5 and the findcard method in the creditcard class
It runs fine and returns all matches but i want to make it return only the first
Also is public void FindCard the right way to call the method?

Kind regards, Lucas
Lucas Maidment13y ago
Thankyou so much :)
Works perfect
Iftikar Hussain13y ago
another way

var result = cards.FindAll(a => a.City == "Sydney");
foreach (var card in result)
{
//print
}

Regards,
Iftikar
Iftikar Hussain13y ago
you can do like this

class Program
{
static void Main(string[] args)
{
CreditCard a = new CreditCard(1, "Lucas", "Sydney", 350, 220);
CreditCard b = new CreditCard(2, "Chris", "Brisbane", 25, 201);
CreditCard c = new CreditCard(3, "Paul", "Wollongong", 320, 120);

List cards = new List();
cards.Add(a);
cards.Add(b);
cards.Add(c);

Console.WriteLine("-----------------------Stage 1-3 Print List------------------------");

foreach (CreditCard x in cards)
{

x.PrintRecord();

}

Console.WriteLine("\n--------------------------Stage 5 Find Card-----------------------------\n");

foreach (CreditCard x in cards)
{
if (x.City=="Sydney")
{
//print to console ..
}
}
}
}

Regards,
Iftikar
Lucas Maidment13y ago
Visual Studio, C# Console Application

regards, Lucas
Iftikar Hussain13y ago
which version of .NET you are using?

Regards,
Iftikar
Lucas Maidment13y ago
yeah sure
i tried to upload but seems i screwed it up lol

class Program
{
static void Main(string[] args)
{
CreditCard a = new CreditCard(1, "Lucas", "Sydney", 350, 220);
CreditCard b = new CreditCard(2, "Chris", "Brisbane", 25, 201);
CreditCard c = new CreditCard(3, "Paul", "Wollongong", 320, 120);

List cards = new List();
cards.Add(a);
cards.Add(b);
cards.Add(c);

Console.WriteLine("-----------------------Stage 1-3 Print List------------------------");

foreach (CreditCard x in cards)
{

x.PrintRecord();

}

Console.WriteLine("\n--------------------------Stage 5 Find Card-----------------------------\n");

foreach (CreditCard x in cards)
{
if (x.Find("Sydney"))
{
//print to console ..

}
}

Basically I want to search the list above to find all records with the city of "Sydney"
If i remember right im supposed to declare a new variable but im completely blank at the moment ><
Iftikar Hussain13y ago
Hi,
Not clear about your query properly. Can you explain bit more and also share the code?

Regards,
Iftikar