Extension Method in C#

  

protected void Button1_Click(object sender, EventArgs e)

{

            string a ="AP";

            a.DoChange("A", "P");
    

       //it will retun  APAPAjay

}

 

public static class TestExtension

{

  public static string DoChange(this string x, string a,string B)

  {

     return x + a + b + "Ajay";

  }

}

Get List of computers connected in LAN

using System.Net.NetworkInformation;

List<string> IP = new List<string>();

private void button1_Click(object sender, EventArgs e)

{

   Ping obj = new Ping();

   for (int i = 0; i < 255; i++)

   {

     try

     {

      PingReply objreply = obj.Send("192.168.0." + i.ToString());

      if (objreply.Status != IPStatus.DestinationHostUnreachable)

       {

          IP.Add(objreply.Address.ToString());

          IP.Add(Dns.GetHostByAddress(objreply.Address).HostName);

       }

     }

     catch

     {

     }

   }           

   ListBox.DataSource = IP;

}

 

Simple image Slider in Jquery

JS

Use JQuery and Jquery.ui

$(window).load(function () {

            var v = $("img");

            setInterval(function () {

                $('#dvContain :nth-child(1)').next()

   .show("bounce",  500)

   .end()

   .hide("explode", 1000)

   .appendTo('#dvContain');

            }, 2500);

        });

CSS

   <style type="text/css">

        #dvContain

        {

            height: 200px;

            width: 300px;

            overflow: hidden;

            padding: 0;

        }

       

        #dvContain img

        {

            position: absolute;

            left: 0;

            top: 0;

            display: none;

        }

        #dvContain img.firstslide

        {

            display: block;

        }

    </style>

HTML

<div id="dvContain">

           <img src="Images/Chrysanthemum.jpg" width="300" height="200"   

                     class="firstslide" />

            <img src="Images/Desert.jpg" width="300" height="200" />

            <img src="Images/Hydrangeas.jpg" width="300" height="200" />

            <img src="Images/Jellyfish.jpg" width="300" height="200" />

  </div>

Json Serialization/Deserialization

JSON string:

[

  {

    "Name": "Ajay",

    "City": "Kalol"

  }

]

 Code To Serialize/Deserialize JSON : 

  DataTable dt = new DataTable();

  dt.Columns.Add("Name");

  dt.Columns.Add("City");

  DataRow dr = dt.NewRow();

  dr["Name"] = "Ajay";

  dr["City"] = "Kalol";

  dt.Rows.Add(dr);

  string ConvertToJson = JsonConvert.SerializeObject(dt, Formatting.Indented,

   new JsonSerializerSettings { NullValueHandling = NullValueHandling.Include,

                                TypeNameHandling = TypeNameHandling.Objects,

                DateFormatHandling = DateFormatHandling.MicrosoftDateFormat });

DataTable DeserializefromJson = (DataTable)JsonConvert.DeserializeObject(str,
                                                         (typeof(DataTable)));