C#

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <configSections>
    <Section name="ClientSettings" type="System.Configuration.ConfigurationSectionCollection" />
     </configSections>
  <appSettings>
    <add key="ServiceName" value="XXX Server A" />
     <add key="LogfileName" value="XXXServer.log" />
    <add key="LogfileFolder" value="C:\Program Files\XXXServer\logfiles\" />
     </appSettings>
<ClientSettings>
      <add key="Port1" value="12345" />
      <add key="Port2" value="67899" />
</ClientSettings>
</configuration>

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 WindowsFormsApplication5
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void openFileDialog1_FileOk(object sender, CancelEventArgs e)
        {

        }

        private void button1_Click(object sender, EventArgs e)
        {
            //Show Dialog and get Result
            DialogResult result = openFileDialog1.ShowDialog();
            if (result == DialogResult.OK)
            {
                this.textBox1.Text = openFileDialog1.FileName; //Displays browse result in textbox
            {}
            }
            Console.WriteLine(result); 
        }
    {
        foreach (var)
    }

        private void textBox1_TextChanged(object sender, EventArgs e)
        {
        }
    }
}