array list

[Darenr]

I have an array list of objects such as Employee Object
Each object contains string firstName, string lastName, double rate.

my question is how can i iterate through the array list and have the members of each object appear in text boxes such as first name will be in a text box, last name will be in a different text box, rate will be in its own text box as well.

any help would be greatly appreciated.

i tried something like this just to see if the names were in there and all i get is the array name

[BigEd781]

First off, there is no good reason to use an array list for this. Use a typed generic list.

List<Employee> list = new List<Employee>();

to iterate through a list, just use a foreach.

[Darenr]

i have to use array list

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;
using System.Collections;

namespace EmployeePayrollClasses
{
    public partial class GUI : Form
    {
        //private Employee[] employee = new Employee[3];
        private double gross;
        private int _i = 0;
        public ArrayList empList = new ArrayList();

        List<Employee> list = new List<Employee>();


        Employee emp = new Employee( );
        StreamReader employeeStreamReader;
        
        
        
        
        public GUI()
        {
            InitializeComponent();
        }

        private void GUI_Load(object sender, EventArgs e)
        {
            openFile();
           
            
        }

        private void calcPay()//calculate method
        {
            double hours;//variables
            double payrate;
            double ot;
            double otPay;
            string th;
            string tr;

            th = txtHours.Text;
            tr = txtRate.Text;

            try//try catch for errors
            {
                txtHours.BackColor = (Color.White);
                hours = Double.Parse(th);//get input
                payrate = double.Parse(tr);

                if (hours <= 40)//test for 40 and below hours
                {

                    gross = hours * payrate;

                    txtGross.Text = gross.ToString("c2");
                }
                else
                    if (hours > 40)//test for overtime
                    {
                        ot = hours - 40;
                        otPay = ot * (payrate * 1.5);
                        gross = (hours * payrate) + otPay;
                        txtGross.Text = gross.ToString("c2");
                    }

            }
            catch (FormatException ex)
            {
                MessageBox.Show("  ENTER HOURS PLEASE");
                txtHours.BackColor = (Color.Pink);
                txtHours.Text = "";
            }


        }

        private void displayRecord()//display the records
        {
            
             try
	              {
	                   emp = /*(Employee)empList[_i]; */(empList[_i] as Employee);
	                   txtFName.Text = emp.firstName;
	                   txtLName.Text = emp.lastName;
                       txtRate.Text = emp.rate.ToString();
                       _i++;
	              }
              catch (Exception ex)
	              {
	                    txtFName.Text = string.Empty;
                        txtLName.Text = string.Empty;
	                    txtRate.Text = string.Empty;
	                    _i = 0;
	                    MessageBox.Show("Pretty error message" + ex.ToString());
              }
             
	            }

            //try
            //{



            //    foreach (Employee e in list)
            //    {
            //        Console.WriteLine(e.firstName.ToString());
            //        Console.WriteLine(e.lastName.ToString());
            //    }



                //    txtFName.Text = emp.firstName;
                //    txtLName.Text = emp.lastName;
                //    txtRate.Text = emp.rate.ToString();
                //   // _i++;
                //}

            //{
                //if (_i < list.Count &&  _i == 0)//cycle through the elements
                //{
                //    //txtFName.Text = emp.firstName;
                //    //txtLName.Text = emp.lastName;
                //    //txtRate.Text = emp.rate.ToString();


                //    txtFName.Text = list[_i].firstName;
                //    txtLName.Text = list[_i].lastName;
                //    txtRate.Text = list[_i].rate.ToString();

                //    _i++;
                
                    
              //  }



                //}
                //else
                //{
                //    _i = 0;//go back to element 0 
                //    txtFName.Text = "";
                //    txtLName.Text = "";
                //    txtRate.Text = "";

                //}

           // }

            //catch (Exception ex)
            //{
            //    MessageBox.Show("hmm " + ex.ToString());
            //}



        //}


        public void openFile()//open the files
        {
            DialogResult responseDialogResult;

            openFileDialog1.InitialDirectory = Directory.GetCurrentDirectory();
            responseDialogResult = openFileDialog1.ShowDialog();


            int x = 0;

            try//place info into the structure 
            {
                employeeStreamReader = File.OpenText(openFileDialog1.FileName);

                while (employeeStreamReader.Peek() > -1)
                {
                    

                    //employee[x].firstName = employeeStreamReader.ReadLine();
                    //employee[x].lastName = employeeStreamReader.ReadLine();
                    //employee[x].rate = Convert.ToDouble(employeeStreamReader.ReadLine());
                    //x++;

                    emp.first = employeeStreamReader.ReadLine();
                    emp.last = employeeStreamReader.ReadLine();
                    emp.rate = Convert.ToDouble(employeeStreamReader.ReadLine());
                    empList.Add(emp);

                    

                    //list.Add(emp);
                    x++;
                }
                
            }
            catch (FormatException fe)
            {
                MessageBox.Show("ERROR " + fe.ToString());
            }

        }

        private void btnNext_Click(object sender, EventArgs e)
        {

            if (_i == empList.Count) _i = 0;
            displayRecord();//call this method

            txtHours.BackColor = (Color.White);//change color back
            txtHours.Text = "";//clear fields
            txtGross.Text = "";
        }

        private void btnExit_Click(object sender, EventArgs e)
        {
            this.Close();
            employeeStreamReader.Close();
        }

        private void btnCalc_Click(object sender, EventArgs e)
        {
            calcPay();
           
          //  txtGross.Text = gross.ToString();
        }



    }
}

I still get the same error -- it only shows me the last element in the file.

for instance file contains

tom
follow
10
tim
hast
20
john
sprat
12.5


it is only showing john sprat 12.5
3 times instead of each element

[Arjay]

i have to use array list

Why? Is this homework or something?

[Darenr]

it has been solved thank you and yes it was homework. I was missing an object new object call.

[HanneSThEGreaT]

Sorry, if this was homework, then your teacher have no clue what he / she is talking about. Use the right tools for the job - your teacher should know that by now.

Oh, and please mark your thread resolved when your questions have been answered :

http://www.codeguru.com/forum/showthread.php?t=401115

[BigEd781]

Sorry, if this was homework, then your teacher have no clue what he / she is talking about.

Unfortunately, this is quite common.

[HanneSThEGreaT]

Sad, isn't it ?

[JCStorey]

My instructor says to just Google it.

[Arjay]

My instructor says to just Google it.

Maybe you should pay us instead of the instructor?

[HanneSThEGreaT]

JCStory, that is a common term in the teaching circles nowadays, sadly. To roughly translate teacher language :

"Google it!"

to normal layman's terms it will mean :

"I don't know, so if you find it out, let me know" LOL!