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 23rd October 2021 at 4:01pm


The action-sendmessage widget is an action widget that sends a message back up the widget tree. ActionWidgets are used within triggering widgets such as the ButtonWidget.

Content and Attributes

The action-sendmessage widget is invisible. Any content within it is ignored.

$messageThe message to send (eg, WidgetMessage: tm-new-tiddler)
$paramOptional parameter string whose meaning is dependent on the message being sent
$nameOptional name of additional parameter
$valueValue for optional parameter whose name is specified in $name
$namesIntroduced in v5.2.1 Optional filter evaluating to a list of additional parameter names
$valuesIntroduced in v5.2.1 Optional filter evaluating to a list of parameter values corresponding to the parameters names specified in $names
{any attributes not starting with $}Multiple additional, optional named parameters that are attached to the message


Here is an example of button that displays both a notification and a wizard, and creates a new tiddler with tags and text:

<$action-sendmessage $message="tm-modal" $param="SampleWizard"/>
<$action-sendmessage $message="tm-notify" $param="SampleNotification"/>
<$action-sendmessage $message="tm-new-tiddler" title="This is newly created tiddler" tags="OneTag [[Another Tag]]" text=<<now "Today is DDth, MMM YYYY">>/>
Click me!

That renders as: