using System;
using System.Collections.Generic;
using System.Data.SqlClient;
using System.Linq;
using System.Web;


public class GallerySite
{
    int iD;

    public int ID
    {
        get { return iD; }
        set { iD = value; }
    }
    string imagePath;

    public string ImagePath
    {
        get { return imagePath; }
        set { imagePath = value; }
    }
    string imageText;

    public string ImageText
    {
        get { return imageText; }
        set { imageText = value; }
    }
    public List<GallerySite> GetImage()
    {
        List<GallerySite> _Gallery = new List<GallerySite>() { };
        SqlConnection cnn = new SqlConnection("Data Source=.;Initial Catalog=RoshanZamirDataBase;Integrated Security=True");
        cnn.Open();
        SqlCommand cmd = new SqlCommand("Select * From Gallery", cnn);
        SqlDataReader datareadfewr = cmd.ExecuteReader();
        if (datareadfewr.HasRows)
        {
            while (datareadfewr.Read())
            {
                _Gallery.Add(new GallerySite()
                {
                    ID = Convert.ToInt32(datareadfewr["ID"]),
                    ImagePath = (string)datareadfewr["ImagePath"],
                    ImageText=(string)datareadfewr["ImageText"]
                });
            }
        }
        return _Gallery;
    }
}

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    <link href="orbit-1.2.3.css" rel="stylesheet" />
    <script src="jquery-1.8.3.min.js"></script>
    <script src="jquery.orbit-1.2.3.min.js"></script>
    <script type="text/javascript">
        $(function () {
            $.ajax({
                url: "Handler.ashx",
                contentType: "application/json; charset=utf-8",
                success: function (data) {
                    $.each(data, function (i, b) {
                        var str = '<img src="' + b.ImagePath + '" alt="' + b.ImageText + '"/>';
                        $("#featured").append(str);
                    });
                    $('#featured').orbit();
                },
                dataType: "json"
            });
        });
    </script>




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Handler :



public class Handler : IHttpHandler {
    
    public void ProcessRequest (HttpContext context) {
        var _Gallery = new GallerySite();
        var List = _Gallery.GetImage();
        string str = JsonConvert.SerializeObject(List);
        context.Response.Write(str);          
    } 
    public bool IsReusable {
        get {
            return false;
        }
    }
}