Create Web Service to read images from folder and return path, DateTime of image created in Json format using C# in ASP.Net

Hi eshant.Kapoor,

I have created a sample which full fill your requirement

HTML

<div>
    <asp:Button ID="btnRetrieve" Text="Retrieve" runat="server" OnClick="btnRetrieve_Click" />
    <br />
    <asp:GridView ID="gvDetails" runat="server" />
</div>

C#

using System;
using System.Data;
using Newtonsoft.Json;

public partial class _Default : System.Web.UI.Page
{
    protected void btnRetrieve_Click(object sender, EventArgs e)
    {
        localhost.ImageDetails imageDetails = new localhost.ImageDetails();
        DataSet dataSet = JsonConvert.DeserializeObject<DataSet>(imageDetails.GetImagePath().ToString());
        gvDetails.DataSource = dataSet.Tables[0];
        gvDetails.DataBind();
    }
}

ImageDetails.cs

using System.Web.Services;
using System.Data;
using System.IO;
using Newtonsoft.Json;
using System.Web.Script.Services;

[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.Web.Script.Services.ScriptService]
public class ImageDetails : System.Web.Services.WebService
{
    [WebMethod]
    [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
    public string GetImagePath()
    {
        DataSet ds = new DataSet("ImageFiles");
        DataTable dt = new DataTable("Details");
        dt.Columns.AddRange(new DataColumn[3] { new DataColumn("ImageFilePath"), new DataColumn("ImageName"), new DataColumn("DateTime") });
        string[] directoryForSearch = new string[] { "C", "D", "E" }; //Drives Name.
        for (int k = 0; k < directoryForSearch.Length; k++)
        {
            DirectoryInfo drive = new DirectoryInfo(directoryForSearch[k] + ":\\");
            DirectoryInfo[] folders = drive.GetDirectories("*.*");
            for (int i = 0; i < folders.Length; i++)
            {
                FileInfo[] allFiles = folders[i].GetFiles("*.*");

                if (allFiles.Length > 0)
                {
                    for (int j = 0; j < allFiles.Length; j++)
                    {
                        if (allFiles[j].Extension == ".jpg" || allFiles[j].Extension == ".png" || allFiles[j].Extension == ".bmp" || allFiles[j].Extension == ".gif")
                        {
                            dt.Rows.Add(allFiles[j].DirectoryName, allFiles[j].Name, allFiles[j].LastWriteTime);
                        }
                    }
                }
            }
        }
        ds.Tables.Add(dt);
        return JsonConvert.SerializeObject(ds);
    }
}

ScreenShot