Sends a callback to the server and generates the server-side ASPxFileManager.CustomCallback event, passing it the specified argument.
PerformCallback( data: any, onSuccess?: (arg: string) => void ): void
A string value that specifies any information that needs to be sent to the server-side ASPxFileManager.CustomCallback event.
|onSuccess||(arg: string) => void||
A client action to perform if the server round-trip completed successfully.
You can also use the PerformCallback method if you need to asynchronously go to the server and perform server-side processing using AJAX-based callback technology. You can pass the required information to be collected on the client side as a string of arguments (for instance, in the “Name = Value;” form) with the PerformCallback method’s args parameter. The onSuccess parameter allows you to specify a client function that should be executed after the server round-trip completed successfully.
The PerformCallback method posts back to the server using callback technology, and generates a server-side ASPxFileManager.CustomCallback event. The method’s args argument is passed to the ASPxFileManager.CustomCallback event’s handler as the CallbackEventArgsBase.Parameter property. So, the necessary server-side actions can be performed in the event’s handler based upon the values of the arguments, obtained by parsing the passed information string.