passing parameter value between methods

Question

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i have ajaxfileupload control , i want to insert the image to the database ,
but i want to insert it throw button , not from the upload complete event ,
so i make the button but there isn't filename property !
any help ?
p.s i use the ajax control because i want to preview it first and it have a javascript code that preview the image
____

C#

protected void fileUploader_UploadComplete(object sender, AjaxFileUploadEventArgs file)
    {
        // User can save file to File System, database or in session state
        if (file.ContentType.Contains("jpg") || file.ContentType.Contains("gif")
            || file.ContentType.Contains("png") || file.ContentType.Contains("jpeg"))
        {
            Session["fileContentType_" + file.FileId] = file.ContentType;
            Session["fileContents_" + file.FileId] = file.GetContents();
        }

        // Set PostedUrl to preview the uploaded file.         
        file.PostedUrl = string.Format("?preview=1&fileId={0}", file.FileId);   
    }

and

C#

protected void btnInsert_Click(object sender, EventArgs e)
    {
         
        //string filePath = "~/_Manage_/upimages/" + file.FileName;
        //fileUploader.SaveAs(filePath);
    }

Posted 28-Dec-12 12:35pm

Ahmad Abd-Elghany

Updated 28-Dec-12 15:12pm

v4

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Comments

Sergey Alexandrovich Kryukov 28-Dec-12 18:38pm

This is not a correct question. Who told you you need to do exactly that? You need to start with what you want to achieve really, forget about how for this moment...
—SA

Ahmad Abd-Elghany 28-Dec-12 18:42pm

what !!!?

Sergey Alexandrovich Kryukov 28-Dec-12 18:51pm

That! What part of my comment you did not understand?
Don't try to abuse event mechanism, adhere to it. Explain your ultimate goal; and I tell you how to reach it.
—SA

Ahmad Abd-Elghany 28-Dec-12 18:57pm

i corrected my question :)

Zaf Khan 28-Dec-12 21:08pm

Note:
I forgot to add.... to my solution...
The fileupload will let you upload to ANY location you say as long as it is WRITEABLE location... but you would upload it to a SECRET/NON-PUBLIC area as you dont want everyone to drop just any file in your important folders, so its best to nominate an uploads folder and empty it before/after uploads. off course if your server is busy then there may be several uploads happening at once! so then you cant empty it before/after but using a sequential numbering system helps keep track of the files and you can remove the temporary files once the user ok/cancels their uploaded file, and ALSO you would have the file path for preview once uploaded too.

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Zaf Khan · Answer 1 · 2012-12-28T15:02:00

I was always under the impression that the fileupload component alowed you to upload a file to a non publically accessible area like an _uploads/uploads folder for example and the file named to anything you wanted like upload243.doc and then once uploaded (and the file extension PRESERVED) and ONLY THEN the user is given the option to OK/Cancel via your button event.

And if the user OK then you already know the file name and location and you can chunk it into your DB as you like...

And if the user choose CANCEL then you can delete it from your servers NON PUBLIC space.

So dont neccessarily think about completing the action in one shot, even though it may be possible.... try to think of it as a two step manouvre.

where...

1- User chooses file and you UPLOAD to TEMPORARY location
2a- User choose OK and you process and then delete the temporary file
OR
2b- User choose CANCEL you delete the temporary file