Description

Undoes the last Text Control operation.

Syntax

<void> TXTextControl.undo([<EmptyRequestCallback> callback], [<ErrorCallback> errorCallback])

Parameters

Parameter	Description
callback	Optional. Is called when the operation completed.
errorCallback	Optional. Is called when the operation failed with an error.

Examples

The following example demonstrates TXTextControl.undo in a practical document-editing workflow. Undoes the last Text Control operation.

function onTxError(error) {
    console.error("TX Text Control error:", error.msg);
    error.handled = true;
}

TXTextControl.undo(
    function() {
        console.log("undo completed.");
    },
    onTxError
);