Description

Sets a value indicating whether the undo buffer is active or not.

Syntax

<void> TXTextControl.setAllowUndo(<boolean> allowUndo, [<EmptyRequestCallback> callback], [<ErrorCallback> errorCallback])

Parameters

Parameter	Description
allowUndo	Specifies whether the undo buffer is active or not.
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.setAllowUndo in a practical document-editing workflow. It sets a value indicating whether the undo buffer is active or not.

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

TXTextControl.setAllowUndo(
    true,
    function() {
        console.log("set allow undo completed.");
    },
    onTxError
);