Dot Net Tutorial

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;
using System.IO;

namespace WpfApplication1
{
    /// <summary>
    /// Interaction logic for Window4.xaml
    /// </summary>
    public partial class Window4 : Window
    {
        public Window4()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, RoutedEventArgs e)
        {
            DriveInfo[] strdrives = DriveInfo.GetDrives();
            foreach (DriveInfo strdrive in strdrives)
            {
                listBox1.Items.Add(strdrive);
            }
        }
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;
using System.IO;

namespace WpfApplication1
{
    /// <summary>
    /// Interaction logic for Window5.xaml
    /// </summary>
    public partial class Window5 : Window
    {
        public Window5()
        {
            InitializeComponent();
        }

        private void Window_Loaded(object sender, RoutedEventArgs e)
        {
            DriveInfo[] strdrives = DriveInfo.GetDrives();
            foreach (DriveInfo strdrive in strdrives)
            {
                listBox1.Items.Add(string.Format("Drive{0}",strdrive.Name));
                listBox1.Items.Add(string.Format("File type:{0}",strdrive.DriveType));
                listBox1.Items.Add(string.Format("Volume Label:{0}", strdrive.VolumeLabel));
                listBox1.Items.Add(string.Format("File System:{0}", strdrive.DriveFormat));
                listBox1.Items.Add(string.Format("Available space to current user:{0,15}bytes", strdrive.AvailableFreeSpace));
                listBox1.Items.Add(string.Format("Total available space:{0,15}bytes", strdrive.TotalFreeSpace));
                listBox1.Items.Add(string.Format("Total size of drive:{0,15}bytes", strdrive.TotalSize));


            }
        }
    }
}

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;

namespace WindowsFormsApplication1
{
    public partial class linenumber : Form
    {
        public linenumber()
        {
            InitializeComponent();
        }

        private void openToolStripMenuItem_Click(object sender, EventArgs e)
        {
            openFileDialog1.Filter = "Text file(*.txt)|*.txt";
            string filename;
            if (openFileDialog1.ShowDialog() == DialogResult.OK)
            {
                filename = openFileDialog1.FileName;
                int dr = 0;
                FileStream f = new FileStream(filename, FileMode.Open);
                StreamReader sr = new StreamReader(f);
                string line;
                StreamWriter sw = File.CreateText(@"E:\numbered.txt");
                while ((line = sr.ReadLine()) != null)
                {
                    dr++;
                    sw.WriteLine("{0}{1}", dr, line);
                }
                sw.Close();
                f.Close();
                MessageBox.Show("File numbered successfully");
                System.Diagnostics.Process.Start(@"E:\numbered.txt");

            }
        }
    }
}

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 WindowsFormsApplication1
{
    public partial class string_format : Form
    {
        public string_format()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            MessageBox.Show(string.Format("I am {0} specializing in {1}","sunitha",".net"));
            MessageBox.Show(string.Format("I am {0} specializing in {1} based at {2}","sunitha",".net","asp"));
        }
    }
}

Properties->path->(C:\)
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 WindowsFormsApplication1
{
    public partial class filewatcher : Form
    {
        public filewatcher()
        {
            InitializeComponent();
        }

        private void fileSystemWatcher1_Created(object sender, System.IO.FileSystemEventArgs e)
        {
            MessageBox.Show(e.Name);
        }

   
    }
}