Events and Handlers

The File Uploader Button component has the following events and handlers available for use:

Events

Event	Description
on Before Upload	Triggers before selected files are uploaded to the server.
on Upload Success	Triggers when file(s) upload succeeds.
on Upload Failed	Triggers if the upload of the file(s) results in an error.
On Visibility Change	Gets activated when the visibility state of the component is altered. You can use this event to define actions that need to take place when the component becomes visible or hidden.

Handlers

Handler	Description
Class List Logic	This logic involves modifying the CSS classes associated with the component dynamically.
Styles Logic	Allows you to change the styles of the component dynamically.
Visibility Logic	Allows controlling the visibility of the component based on certain conditions. You can use this event to show or hide the component depending on user actions or other factors. If the handler returns true, the component will be visible.
Target Directory Logic	Determines the path of the directory where the file(s) will be uploaded to.
File Name Logic	Determines the name of the file which it will be saved with. If the component is configured for multiple file upload, the handler is invoked for each selected file.
Button Label Logic	Determines the label of the file uploader button.
Upload Success Message Logic	Determines the text of the message presented to the user when file(s) upload is successful.
Upload Fail Message Logic	Determines the text of the message presented to the user when file(s) upload results in an error.
Upload Progress Message Logic	Determines the text of the message presented to the user when the upload is in progress.
Disabled State Logic	Determines if the component should be disabled. If the handler returns true, the component will be disabled.