Inheritance

Class file

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace WindowsFormsApplication1

{

    class inheritanc

    {

        private int mibalance;

        public int balance

        {

            get

            {

                return mibalance;

            }

            set

            {

                mibalance = value;

            }

        }

    }

    class inher : inheritanc

    {

        public void deposit(int amt)

        {

            balance = balance + amt;

        }

        public void withdraw(int amt)

        {

            balance = balance - amt;

        }

    }

}

Windows form file

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 inheritance : Form

    {

        public inheritance()

        {

            InitializeComponent();

        }

     

        private void inheritance_Load(object sender, EventArgs e)

        {

            inheritanc kk=new inheritanc();

            MessageBox.Show(kk.balance.ToString());

        }

    }

}

aspx page creation

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 createaspx : Form

    {

        public createaspx()

        {

            InitializeComponent();

        }

        StreamWriter sw;

        private void create_Click(object sender, EventArgs e)

        {

            sw = File.CreateText(@"E:\hello.aspx");

            sw.WriteLine("<html>");

            sw.WriteLine("<form runat=\"server\">");

            sw.WriteLine("<asp:button text=\"hello\" runat=\"server\"></asp:button>");

            sw.WriteLine("</form>");

            sw.WriteLine("</html>");

            sw.Close();

            System.Diagnostics.Process.Start(@"E:\hello.aspx");

        }

    }

}

Binary file creation

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 binaryfile : Form

    {

        public binaryfile()

        {

            InitializeComponent();

        }

        BinaryWriter bw;

        FileStream fs;

        BinaryReader br;

        private void button1_Click(object sender, EventArgs e)

        {

           

            fs = new FileStream(@"E:\demo.data", FileMode.Create);

            bw = new BinaryWriter(fs);

            for (int i = 0; i < 5; i++)

            {

                bw.Write(i);

               

            }

            bw.Close();

            MessageBox.Show("Binary file created successfully");

        }

        private void button2_Click(object sender, EventArgs e)

        {

            fs = new FileStream(@"E:\demo.data", FileMode.Open);

            br = new BinaryReader(fs);

            int l = (int)fs.Length;

            for (int i = 0; i < l / 4; i++)

            {

                listBox1.Items.Add(br.ReadInt32());

            }

        }

    }

}

File watcher

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);

        }

      

    }

}

String Format

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"));

        }

    }

}

Line number

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");

            }

        }

    }

}

Drive Extra Info

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));

            }

        }

    }

}