Count number of files in multiupload

[Niels_EMP]

SmartClient Version: v10.1p_2016-02-26/Pro Deployment (built 2016-02-26)

Is it in any way possible to count the number of files curently in a multifileuploaditem?

In the screenshot from your showcase this would result in 2.


Also is there a way to get a callback when uploading/deleting a file in the multifileuploaditem?

Thanks

[Isomorphic]

MultiUploadPicker, which is the "picker" AutoChild uses by MultiFileItem, allows you to set maxUploadFields and minUploadFields to control the number of files that can be added. There is no current way to get the number of files that the user has chosen (at least, not until they actually do the upload). What would you use this for?

[Niels_EMP]

I have a TabSet with a lot of different data and one of these tabs holds the files, I want the title of tab to reflect how many files are currently there so the user doesn't have to click on the tab to see if anyone has uploaded files for that particular instance.


Now I can easily get the number of files when I fetch the initial form data, but I would like this value in the tab title to update when the user uploads a new files or deletes an existing one, and I can't find any handlers or callbacks for these actions.

[Isomorphic]

Since adding or removing files requires a DataSource request, you could use DataSource.transformResponse (or equivalently a ResponseTransformer) to watch for successful "add" and "remove" requests.

[Niels_EMP]

Awesome, that works great.

I could even use that to set number of files from the initial fetch.

DataSource fileDS = DataSource.get("scrum_backlog_userStoryFiles", null, new ResponseTransformer() {
            
            @Override
            protected void transformResponse(DSResponse response, DSRequest request, Object data) {
                switch (response.getOperationType()) {
                case ADD:
                    numOfFiles++;
                    break;
                case REMOVE:
                    numOfFiles--;
                    break;
                case FETCH:
                    if(response.getData() != null)
                        numOfFiles = response.getData().length;
                    break;
                default:
                    break;
                }
                updateFilesAndLinksTabTitle();
            }
        });