Image Uploader failing to create Thumbnails - PRODUCTION ISSUE

When we ran a debug script the message from Image Uploader is (not much of help):

************************

Some server side error occurred.

************************

When we ran our own debug in the script it looks like it is failing at the point where Image Uploader is creating the thumbnail. Here are the detailed symptoms.

1. The source image is uploading without any problem.

2. Each time it is failing at the point where the Thumbnail1_ and Thumbnail2_ are getting created.

3. We tried saving the thinbnailes to several different folder structures and every time it is failing at the point of creation.

4. When we remove the thumbnail creation everything works fine.

5. On some machines the problem never occurs.

6. On some machines it happens intermittently. It works some times and does not work sometimes.

7. It never works on some machines.

8. It is giving problems on both IE 6 and 7

9. We haven't yet tested on Mozilla.

Thanks a lot for the response. I really appreciate your help. The link to our QA site is:

http://www.prasaar.com/Test/TestUploadPhotos.aspx

Basically it is failing at the third and fifth statement below.

                sourceFile.SaveAs(Server.MapPath(galleryPath + fileName.Trim()));
                HttpPostedFile thumbnail1File = Request.Files["Thumbnail1_" + i];
                thumbnail1File.SaveAs(Server.MapPath(galleryPath + "Thumbnails/" + fileName.Replace(" ", "_")));
                HttpPostedFile thumbnail2File = Request.Files["Thumbnail2_" + i];
                thumbnail2File.SaveAs(Server.MapPath(galleryPath + "PhotoDisplay/" + fileName.Replace(" ", "_")));

Of the three variable above 'Thumbnail1_', 'galleryPath', and 'fileName' the last two are getting initialized and getting valid values as the firt sourcefile statement is successful and uploading photos to the server. It appears that the thumbnail is not getting initialized.

So we cretaed an alert in our code at the point of creation of both the thumbnails. It is showing avery bizzar behaviour. Sometime it is showing 2 and sometime it is showing 0. Based on this I think the thumbnails are not getting iniatialized. Pleaase find the code below.

 var iu = new ImageUploaderWriter("ImageUploader", 600, 600);

                            // If you do not want to use ActiveX or Java version, set the appropriate
                            // property to false.
                            iu.activeXControlEnabled = true;
                            iu.javaAppletEnabled = true;

                            iu.activeXControlCodeBase = "ImageUploader4.cab";
                            iu.javaAppletCodeBase="./";
                            
                            
                            //Configure thumbnail settings.
                            iu.addParam("UploadThumbnail1FitMode", "Fit");
                            iu.addParam("UploadThumbnail1Width", "120");
                            iu.addParam("UploadThumbnail1Height", "120");
                            iu.addParam("UploadThumbnail1JpegQuality", "80");
                            
                            iu.addParam("UploadThumbnail2FitMode", "Fit");
                            iu.addParam("UploadThumbnail2Width", "600");
                            iu.addParam("UploadThumbnail2Height", "400");
                            iu.addParam("UploadThumbnail2JpegQuality", "80");
                            
                            iu.addParam("ButtonDeselectAllText", "");
                            iu.addParam("ButtonSelectAllText", "");
                            iu.addParam("ButtonSendText", "Upload");
                            iu.addParam("DropFilesHereText", "Drop files here to Upload");

Edited by user Sunday, February 24, 2008 5:11:37 PM(UTC)  | Reason: Not specified

I have checked your code and have some notes:

1) Line 353: I don’t see the method ImageUploader_UploadFileCountChange in your page code so you should comment this line or create such method if you need to use it.

2) Line 354: The same situation with ImageUploader_Progress method.

3) Line 362: Image Uploader uses the same event handler for inner purposes so try to comment this code and check if this is a reason of the problem. If you need this code to be processed use fullPageLoadListenerName property.

Please, take these notes into account and check if the problem is still there.

Edited by user Wednesday, October 29, 2008 12:13:55 PM(UTC)  | Reason: Not specified

I have successfully uploaded my files to your site several times on my IE6. Could you post problem photos here?

We did not hear about such problems before, but it is potentially possible that Flash player uses the same methods with Image Uploader itself.