Search algorithm between cities with an array

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;

namespace CycleTour
{
    public partial class Form1 : Form
    {
        //Adding the list of arrays to be used
        string[] ArrayCities = new string[7];
        int[] arrDistance1 = new int[7];
        int[] arrDistance2 = new int[6];
        int[] arrDistance3 = new int[5];
        int[] arrDistance4 = new int[5];
        int[] arrDistance5 = new int[3];
        int[] arrDistance6 = new int[2];
        int[] arrDistance7 = new int[1];
        int[] arrDistance8 = new int[1];
        int[] arrBestDis = new int[6];

        //Variables declared
        int counter1 = 0;
        int counter2 = 0;
        int counter3 = 0;
        int counter4 = 0;
        int counter5 = 0;
        int counter6 = 0;
        int input = 0;
        int total = 0;

        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            //List cities index
            ArrayCities[0] = "Aberdeen";
            ArrayCities[1] = "Ayr";
            ArrayCities[2] = "Fort William";
            ArrayCities[3] = "Glasgow";
            ArrayCities[4] = "Inverness";
            ArrayCities[5] = "St Andrews";
            ArrayCities[6] = "Stirling";
            //Add the cities to the combobox
            comboBox1.Items.AddRange(ArrayCities);
            listBox1.Items.AddRange(ArrayCities);

            //Distances
            arrDistance1[0] = 179; //Aberdeen to Ayr
            arrDistance1[1] = 129; //Aberdeen to Edinburgh
            arrDistance1[2] = 157; //Aberdeen to Fort William
            arrDistance1[3] = 146; //Aberdeen to Glasgow
            arrDistance1[4] = 105; //Aberdeen to Inverness
            arrDistance1[5] = 79;  //Aberdeen to St Andrews
            arrDistance1[6] = 119; //Aberdeen to Stirling

            arrDistance2[0] = 79;  //Ayr to Edinburgh
            arrDistance2[1] = 141; //Ayr to Fort William
            arrDistance2[2] = 33;  //Ayr to Glasgow
            arrDistance2[3] = 207; //Ayr to Inverness
            arrDistance2[4] = 118; //Ayr to St Andrews
            arrDistance2[5] = 64;  //Ayr to Stirling

            arrDistance3[0] = 131; //Edinburgh to Fort William
            arrDistance3[1] = 43;  //Edinburgh to Glasgow
            arrDistance3[2] = 154; //Edinburgh to Inverness
            arrDistance3[3] = 50;  //Edinburgh to St Andrews
            arrDistance3[4] = 36;  //Edinburgh to Stirling

            arrDistance4[0] = 116; //Fort William to Glasgow
            arrDistance4[1] = 64;  //Fort William to Inverness, roadworks
            arrDistance4[2] = 74;  //Fort William to Inverness
            arrDistance4[3] = 134; //Fort William to St Andrews
            arrDistance4[4] = 96;  //Fort William to Stirling

            arrDistance5[0] = 175; //Glasgow to Inverness
            arrDistance5[1] = 81;  //Glasgow to St Andrews
            arrDistance5[2] = 27;  //Glasgow to Stirling

            arrDistance6[0] = 145; //Inverness to St Andrews
            arrDistance6[1] = 143; //Inverness to Stirling

            arrDistance7[0] = 52;  //St Andrews to Stirling

            arrDistance8[0] = 0;   //Stirling
        }

        private void button1_Click(object sender, EventArgs e)
        {
            if (comboBox1.SelectedIndex != -1)//== ArrayCities.ToString())
            {
                while(counter1 <= 7)

                if (arrDistance1[counter1] < arrDistance2[counter1])
                {

                }
                else
                {
                    counter1 = counter1 + 1;
                }

            }
            else
            {
                MessageBox.Show("Please select a city", "Select city", MessageBoxButtons.OK, MessageBoxIcon.Information);
            }

        }



        private void button3_Click(object sender, EventArgs e)
        {
            //Creates a MessageBox confirming an exit
            DialogResult result = MessageBox.Show("Would you like to exit the program?", "Continue?", MessageBoxButtons.YesNo, MessageBoxIcon.Question);

            //if Yes is selected the program will close
            if (result == DialogResult.Yes)
            {
                DialogResult = MessageBox.Show("Thank you for using the program", "Goodbye!", MessageBoxButtons.OK, MessageBoxIcon.Information);
                Application.Exit();
            }

            //if No is selected the program will remain running
            if (result == DialogResult.No)
            {

            }
        }

        private void button4_Click(object sender, EventArgs e)
        {
            comboBox1.SelectedIndex = -1;
            comboBox1.SelectedText = "";
            label6.Text = "Cities";
            label9.Text = "0000";
        }



    }
}