Let’s go thru the code:

WCF Service:

Service1.svc.cs

  1. using System;
  2. using System.Collections.Generic;
  3. using System.Linq;
  4. using System.Runtime.Serialization;
  5. using System.ServiceModel;
  6. using System.ServiceModel.Web;
  7. using System.Text;
  8. using System.IO;
  9. using System.Drawing;
  10. using System.Drawing.Imaging;
  12. namespace PhotoService {
  13. public class Service1: IService1 {
  14. //This method will be called by the application to get Thumbnail
  15. public Stream GetThumbnail(string path) {
  16. try {
  17. Image imgThumb = null;
  18. Image img = Image.FromFile("/\\" + path); //Path for Image Eg. http://localhost:35798/RestServiceImpl.svc/GetThumbnail///YourServer//Images//SampleImage.jpg
  19. imgThumb = CreateThumbnail(img, 100, 100);
  20. var stream = ToStream(imgThumb, ImageFormat.Jpeg);
  21. WebOperationContext.Current.OutgoingResponse.ContentType = "image/jpeg";
  22. return stream;
  23. } catch (Exception ex) {
  24. throw ex;
  25. }
  26. }
  27. //This method will generate thumbanail of 100 x 100
  28. private Image CreateThumbnail(Image image, int thumbWidth, int thumbHeight) {
  29. try {
  30. return image.GetThumbnailImage(
  31. thumbWidth,
  32. thumbHeight,
  33. delegate() {
  34. return false;
  35. },
  36. IntPtr.Zero);
  37. } catch (Exception ex) {
  38. throw ex;
  39. }
  40. }
  41. //Method to convert image in stream
  42. public Stream ToStream(Image image, ImageFormat formaw) {
  43. try {
  44. var stream = new System.IO.MemoryStream();
  45. image.Save(stream, formaw);
  46. stream.Position = 0;
  47. return stream;
  48. } catch (Exception ex) {
  49. throw;
  50. }
  51. }
  52. }
  53. }
IService1.cs
  1. using System;
  2. using System.Runtime.Serialization;
  3. using System.ServiceModel;
  4. using System.ServiceModel.Web;
  5. using System.IO;
  6. using System.Drawing;
  7. using System.Drawing.Imaging;
  9. namespace PhotoService {
  10. [ServiceContract]
  11. public interface IService1 {
  12. [OperationContract]
  13. [WebInvoke(Method = "GET", ResponseFormat = WebMessageFormat.Json, BodyStyle = WebMessageBodyStyle.Wrapped, UriTemplate = "GetThumbnail/{*path}")]
  14. Stream GetThumbnail(string path);
  15. }
  16. }
Run this service by this URL in browser

http://localhost:35798/RestServiceImpl.svc/GetThumbnail///YourServer//Images//SampleImage.jpg



Figure 1 Service has been created, now creating website to consume this service:

Website

Default.aspx
  1. <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Consume PhotoService.aspx.cs" Inherits="_Default" %>
  2. <!DOCTYPE html>
  3. <html
  4. xmlns="http://www.w3.org/1999/xhtml">
  5. <head runat="server">
  6. <title></title>
  7. </head>
  8. <body>
  9. <form id="form1" runat="server">
  10. <div>
  11. <asp:Image ID="Image1" runat="server" />
  12. <br />
  13. Enter Path of Image
  15. <asp:TextBox ID="ImagePath" runat="server"></asp:TextBox>
  16. <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="ImagePath" ErrorMessage="Enter Image Path Eg. //Server//Images//SampleImage.jpg "></asp:RequiredFieldValidator>
  17. <br />
  18. <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Get Image" />
  19. <br />
  20. </div>
  21. </form>
  22. </body>
  23. </html>
Default.aspx.cs
  1. using System;
  2. using System.Linq;
  3. using System.Web;
  4. using System.Web.UI;
  5. using System.Web.UI.WebControls;
  6. using System.Runtime.Serialization;
  7. using System.Net;
  8. using System.IO;
  10. public partial class _Default: System.Web.UI.Page {
  11. protected void Page_Load(object sender, EventArgs e) {
  12. Image1.Visible = false;
  13. }
  14. protected void Button1_Click(object sender, EventArgs e) {
  15. try {
  16. string path = ImagePath.Text;
  17. path.Trim();
  18. if (path != null) {
  19. WebClient proxy = new WebClient();
  20. byte[] responsedata = proxy.DownloadData(new Uri("http://localhost:21269/Service1.svc/GetThumbnail/" + path)); //Accept path like: //YourServer//Images//SampleImage.jpg
  21. Stream stream = new MemoryStream(responsedata);
  22. System.Drawing.Image img = System.Drawing.Image.FromStream(stream);
  23. img.Save(Server.MapPath("~/Images/Test.jpg"));
  24. Image1.ImageUrl = "~/Images/Test.jpg";
  25. Image1.Visible = true;
  26. } else {
  27. Response.Write("Enter Image Path Eg.//Server//Images//SampleImage.jpg");
  28. }
  29. } catch (Exception ex) {
  30. Response.Write("Error : " + ex.Message.ToString());
  31. }
  32. }
  33. }


Thanks !!