Post resized image to different webpage on different application in ASP.net C#

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I have created re sized image from image which lies in folder of my web application. temporary i have stored this images into another image folder of my application. But i don't want to store that image into folder. I want to post that image and image name directly to another webpage of different application.

how to do that?

It would be great if some one provides me with solution code on current page from which re sized image needs to post and target page code...

Thanks in advance..

Posted 4-Mar-13 23:51pm

Member 9884645

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Sergey Alexandrovich Kryukov · Answer 1 · 2013-03-05T12:56:00

Solution 1

You can always do it on the fly. Resize the image using System.Drawing.Bitmap class and save the resized instance directly to the using the class System.Web.HttpResponse:
http://msdn.microsoft.com/en-us/library/system.web.httpresponse%28v=vs.110%29.aspx[^].

Look at the simple code sample shown on this MSDN page. It created the bitmap, draws some bimap on the fly and sends it in HTTP response via the Bitmap.Save method. You can do almost the same. Only you need to open original bitmap, create a new bitmap and draw the original bitmap on the new bitmap scaling it to the target size using appropriate System.Drawing.Graphics.DrawImage method:
http://msdn.microsoft.com/en-us/library/system.drawing.graphics.drawimage.aspx[^].

—SA

Posted 5-Mar-13 12:56pm

Sergey Alexandrovich Kryukov

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Member 9884645 6-Mar-13 7:41am

Thanks for your reply..

I have resized the image but i dont know how to post it now.. and how i will receive it on target page.... so could you provide coding for both pages.... post page and receiving page as well...

Please help me..

Sergey Alexandrovich Kryukov 6-Mar-13 11:25am

I already explained it. Which part is not clear?
—SA

Sergey Alexandrovich Kryukov 6-Mar-13 11:31am

Please see the code sample in the page I referenced and add reading and drawing a bitmap on a bitmap. Your code below is wrong...
—SA

Member 9884645 6-Mar-13 7:44am

I write code to post Image on source page as below...I am not sure about it.. If it is correct code then how to receive image on target page ???? Here folder contains the path of the file in which it lies and Fname is name of the image file.

ASCIIEncoding encoding = new ASCIIEncoding();
string postImg = folder + Fname;
byte[] data = encoding.GetBytes(postImg);
HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create("http://localhost:51399/TestReceive.aspx");
myRequest.Method = "POST";
myRequest.ContentType = "application/x-www-form-urlencoded";
myRequest.ContentLength = data.Length;
Stream newStream = myRequest.GetRequestStream();

newStream.Write(data, 0, data.Length);
newStream.Close();

Sergey Alexandrovich Kryukov 6-Mar-13 11:26am

This is the request part. Now, where is your write part?
Look, can you see a difference between request and response. Why to you post anything?!
—SA

Member 9884645 6-Mar-13 11:32am

Sorry I missed few lines, but still have same prob. It create just boundry not load image and it is also on same page..

ASCIIEncoding encoding = new ASCIIEncoding();
string postImg = folder + Fname;
byte[] data = encoding.GetBytes(postImg);
HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create("http://localhost:51399/TestReceive.aspx");
myRequest.Method = "POST";
//myRequest.ContentType = "application/x-www-form-urlencoded";
myRequest.ContentType = "multipart/form-data";
myRequest.KeepAlive = true;
myRequest.Credentials = System.Net.CredentialCache.DefaultCredentials;
myRequest.ContentLength = data.Length;
Stream newStream = myRequest.GetRequestStream();

newStream.Write(data, 0, data.Length);
newStream.Close();

HttpWebResponse response = (HttpWebResponse)myRequest.GetResponse();
StreamReader reader = new StreamReader(response.GetResponseStream());
string tmp = reader.ReadToEnd();
response.Close();
Response.Write(tmp);

Sergey Alexandrovich Kryukov 6-Mar-13 11:40am

Why are you sending a request, again?!
Look at the code sample I recommended.
—SA

Member 9884645 6-Mar-13 11:51am

I have gone through your sample. I have resized image and store it in byte code.
Now I am not getting what to do next?

and also in which webpage sourcepage.aspx(in webapplication1) or targetpage.aspx(in webapplication2) i need to add code for bitmap and drawing bitmap. I am not experienced in asp.net. so i need bit more clarity...

I need to know how for both pages

Thanks for your help but it would be great if you explore it more as a novice one.

Sergey Alexandrovich Kryukov 6-Mar-13 12:04pm

Well, perhaps you need to read on HTTP. What both pages? Do you store original image on another page? Why? Maybe, store it in a separate file and send to both pages... or put it on one page in a regular way, and read from file on the page you resize it...
—SA

Member 9884645 6-Mar-13 12:14pm

I am retrieving image from Image(Image folder in my Webapplication1) which lies on my disk according to certain condition.

After that I am resizing those image on page_load event of source_page.aspx(Lies in Webapplication1) and storing resized image in Resized(Folder in my webapplication1)folder. At that time it store image in .jpg format not in bytecode.

Also same time I am making resized image in byte code ( as i am not sure which i can easily pass to targetpage_aspx.)

I want to post that image on target.aspx(lies in webapplication2)page. where it will further resize image in three different size and store in local disk or first_receive(Image folder in webapplication2).

I am not worried about further resizing that i will do. Here i am assuming that resized image i want to store in folder(in webapplication2).

So question is how to pass that resize image from Sourcepage.aspx(Webapplication1) and how to receive it on Targetpage.aspx(Webapplication2)?

Hope now i am bit more clear in my question..