C# Dosyadan Okuma

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace bitirme2
{
    public partial class dokuma : Form
    {
        public dokuma()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            OpenFileDialog file = new OpenFileDialog();
            file.Filter = "Metin Dosyası |*.txt";
            file.ShowDialog();
        }
    }
}

 private void button1_Click(object sender, EventArgs e)
        {
            double wgs84f = 0.00335281, wgs84a = 6378137.00, wgs84b = 6356752.31424518;
            double X, Y, Z;

            X = Convert.ToDouble(textX.Text);
            Y = Convert.ToDouble(textY.Text);
            Z = Convert.ToDouble(textZ.Text);


            double lambda;
            lambda = (Math.Atan(Y / X));
            if (X >= 0)
            {
                lambda = (Math.Atan(Y / X));
            }
            else if (X < 0 && Y >= 0)
            {
                lambda = ((Math.Atan(Y / X)) + 3.1415926535898);

            }
            else if (X < 0 && Y < 0)
            {
                lambda = ((Math.Atan(Y / X)) - 3.1415926535898);
            }
            double lambdaderece;
            lambdaderece = (lambda * (180 / Math.PI));

            double ke2;
            ke2 = ((wgs84a * wgs84a) - (wgs84b * wgs84b)) / (wgs84a * wgs84a);

            double P;
            P = Math.Sqrt((X * X) + (Y * Y));

            double R;
            R = Math.Sqrt((P * P) + (Z * Z));

            double teta;
            teta = Math.Atan((Z * ((1 - wgs84f) * (ke2 * wgs84a / R))) / P);


            double enlem;
            enlem = Math.Atan((Z * (1 - wgs84f) + ke2 * wgs84a * (Math.Pow((Math.Sin(teta)), 3))) / ((1 - wgs84f) * (P - ke2 * wgs84a * (Math.Pow((Math.Cos(teta)), 3)))));

            double fiderece;
            fiderece = (enlem * (180 / Math.PI));

            double yukseklik;
            yukseklik = P * (Math.Cos(fiderece)) + Z * (Math.Sin(fiderece)) - wgs84a * (Math.Sqrt(1 - ke2 * (Math.Pow((Math.Sin(fiderece)), 2))));

            lblBoylam.Text = lambdaderece.ToString();
            lblEnlem.Text = fiderece.ToString();
            lblYukseklik.Text = yukseklik.ToString();
        }

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.IO;

namespace bitirme2
{
    public partial class dokuma : Form
    {
        OpenFileDialog openFile = new OpenFileDialog();
        string line = "";
        public dokuma()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            if (openFile.ShowDialog() == DialogResult.OK)
            {
                StreamReader sr = new StreamReader(openFile.FileName);
                while (line != null)
                {
                    line = sr.ReadLine();
                    if (line != null)
                    {
                        foreach (string line in line)
                        {
                            string value = "    "; //koordinatlar arasında ne kadar boşluk varsa o kadar boşluk olmalı.
                            string[] coords = line.Split(value); //3 değerli olacak: x (0), y (1), z (2)
                            listBox1.Items.Add(coords[0]);
                            listBox2.Items.Add(coords[1]);
                            listBox3.Items.Add(coords[2]);
                        }
                    }

                }
            }

        }
    }