Binding.removeHandlerAsync method

Removes the specified handler from the binding for the specified event type.

Hosts: Access, Excel, Word
Available in Requirement set BindingEvents
Last changed in 1.1
bindingObj.removeHandlerAsync(eventType [, options], callback);


Name Type Description Support notes
eventType EventType Specifies the type of event. Required.
options object Specifies any of the following optional parameters
handler object Specifies the name of the handler to remove.
asyncContext array, boolean, null, number, object, string, or undefined A user-defined item of any type that is returned in the AsyncResult object without being altered.
callback object A function that is invoked when the callback returns, whose only parameter is of type AsyncResult.

Callback Value

When the function you passed to the callback parameter executes, it receives an AsyncResult object that you can access from the callback function's only parameter.

In the callback function passed to the removeHandlerAsync method, you can use the properties of the AsyncResult object to return the following information.

Property Use to...
AsyncResult.value Always returns undefined because there is no data or object to retrieve when removing an event handler.
AsyncResult.status Determine the success or failure of the operation.
AsyncResult.error Access an Error object that provides error information if the operation failed.
AsyncResult.asyncContext Access your user-defined object or value, if you passed one as the asyncContext parameter.


If the optional handler parameter is omitted when calling the removeHandlerAsync method, all event handlers for the specified eventType will be removed.


The following example removes the handler for the BindingDataChanged event named onBindingDataChanged.

function removeEventHandlerFromBinding() {"bindings#MyBinding").removeHandlerAsync(Office.EventType.BindingDataChanged, {handler:onBindingDataChanged});

Support details

A capital Y in the following matrix indicates that this method is supported in the corresponding Office host application. An empty cell indicates that the Office host application doesn't support this method.

For more information about Office host application and server requirements, see Requirements for running Office Add-ins.

Supported hosts, by platform

Office for Windows desktop Office Online (in browser) Office for iPad
Access Y
Excel Y Y Y
Word Y Y Y
Available in requirement sets BindingEvents
Minimum permission level ReadWriteDocument
Add-in types Content, task pane
Library Office.js
Namespace Office

Support history

Version Changes
1.1 Added support for Excel and Word in Office for iPad.
1.1 Added support for add-ins for Access.
1.0 Introduced