Until now, this functionality was not needed because this process was done physically in the classroom.
For example, students should send homework to teachers and teachers should send corrections back. Furthermore, the needs of schools have changed to address distance learning. This situation results in a rapid increase in traffic, as we have already talked about in a previous article. For this reason storage costs always increase during time, in contrast to bandwidth costs that depend on current usage.ĭue to the pandemic emergency for COVID 19, in the period between March and June 2020, Nuvola has become the main hub for teachers, pupils and parents. It’s important to note that once you save a photo in your storage you must keep it stored throughout the lifetime of the software unless you apply some deletion policy. Photos and files are typically stored in a disk or in some object storage service. In a typical use case, there are many downloads for each image uploaded. We can expect an higher cost in terms of: This task involves much more resources compared to storing a new record in the database. Sharing images in your platform means that users upload their photos to your storage server and then other users download those photos to use them somehow. Those files can be very heavy (> 10MB) because of the ever increasing camera resolution on new mobile devices. We must also consider that most Internet traffic comes from mobile devices, so we can expect users to upload photos taken with their phones. In .js I modified the img.onload function like this img.Uploading and downloading images is a very common feature in modern web applications but exchanging files between client and server can quickly become a high resource consuming task. I was finally able to achieve what I was looking for from your sample (resize to a limited width and height while preserving the aspect ratio, and without risking a skew of the image) Would it be possible for the sample to be re-uploaded? I still think this would make a great “stock” control in WiseJ. What must be done in order to get this working in WiseJ 2.5 again? My plan is to open the original C# sample provided by Luca, implement my modifications, and then reference the. I have to demo the app at a convention next week and am really hoping that I can get it working again. Of course this makes upload times markedly higher on cellular connections, creating a slow and unpleasant experience for the user. I just realized today that the app was still uploading full resolution (4032×3024) photos from the camera, and the ImageUpload control is no longer sizing them down. I opened it an added the WiseJ 2.5 nuget package to the project, but I still have 67 errors. I can’t even get the original sample provided by Luca to compile. This was working flawlessly, but broke in my VB to C# converted WiseJ project.
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