ClientEvents.BeforeUpload Property HTML5/Flash Uploader PHP
Supported technologies:
Gets or sets an array of BeforeUpload event handlers.
Syntax
PHP
Initialize
public function &getBeforeUpload() {
}
public function setBeforeUpload($value) {
}
Property Value
Type: array
The string containing the name of BeforeUpload event handler or an array of handler names.
Remarks
This event fires when the upload is about to be started.
Returns
A boolean value (true or false). If event handler returns false (or zero), the upload is cancelled.
Otherwise, upload begins immediately after the event handler finishes. This makes the event handler convenient for validating
additional data provided by user.