Uploader.BeforeUpload Event ActiveX/Java Uploader
Supported browsers:
This event fires when the upload is about to be started.
Syntax
ASP.NET
<script type="text/javascript">
function Uploader1_BeforeUpload(){
//...your code...
}
</script>
<aur:Uploader ID="Uploader1" runat="server">
<ClientEvents>
<aur:ClientEvent EventName="BeforeUpload" HandlerName="Uploader1_BeforeUpload" />
</ClientEvents>
</aur:Uploader>
PHP
<script type="text/javascript">
function Uploader1_BeforeUpload(){
//...your code...
}
</script>
<?php
$Uploader = new Uploader("Uploader1");
//...other params...
$Uploader->getClientEvents()->setBeforeUpload("Uploader1_BeforeUpload");
//...other params...
$Uploader->render();
?>
JavaScript
function Uploader1_BeforeUpload(){
//...your code...
}
$au.uploader({
events: {
//...other params...
beforeUpload: [Uploader1_BeforeUpload],
//...other params...
}
})
Return Value
Type: Boolean
If 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 a user.