OnClientFileUploadRemoving
The OnClientFileUploadRemoving occurs before a selected file is about to be removed from the uploaded files collection.The event can be cancelled
The event handler receives two parameters:
The instance of the RadAsyncUpload control firing the event.
An eventArgs parameter containing the following methods:
set_cancel lets you prevent the row from being deleted.
get_cancel returns whether the removing has been cancelled.
get_fileName the name of the file that is about to be removed from the uploaded files collection.
get_row returns the row containing the file input field for the file that is just about to be removed (<li> element)
get_rowIndex the index of the row that is about to be removed from the uploaded files collection.
<telerik:RadAsyncUpload RenderMode="Lightweight" runat="server" ID="RadAsyncUpload1" OnClientFileUploadRemoving="OnClientFileUploadRemoving"></telerik:RadAsyncUpload>
function OnClientFileUploadRemoving(sender,args) {
if (args.get_rowIndex()==0) {
args.set_cancel(true);
}
}