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ASPxClientTreeList.PerformCallback(args) Method

Sends a callback to the server and generates the server-side ASPxTreeList.CustomCallback event, passing it the specified argument.

Declaration

PerformCallback(args: string, onSuccess?: (arg: string) => void): void

Parameters

Name Type Description
args string

A string value that represents any information that needs to be sent to the server-side ASPxTreeList.CustomCallback event.

Optional Parameters

Name Type Default Description
onSuccess (arg: string) => void null

A client action to perform if the server round-trip completed successfully.

Remarks

Use the PerformCallback method if you need to asynchronously go to the server and perform some server-side processing using AJAX-based callback technology. You can pass the required information which can be collected on the client side as a string of arguments, via the arg 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 the callback technology, and generates a server-side ASPxTreeList.CustomCallback event. The method's arg argument is passed to the ASPxTreeList.CustomCallback event's handler as the TreeListCustomCallbackEventArgs.Argument property.

See Also