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UI Automation Activities
Last updated Apr 26, 2024

Click Event Trigger



Sets up a click event trigger on the indicated UI element.

This activity is compatible with Object Repository.

The trigger must be the first activity in the workflow and the workflow is triggered when a certain UI event occurs. Only one trigger per workflow is allowed. For more details, check out Trigger-based Attended Automation.


If you are using a Studio version lower than 2023.4, you need to place the Application Event Trigger activity inside a Trigger Scope activity. In this case, the Click Event Trigger activity does not display the Scheduling mode and Enabled properties and the Scheduling mode property is available in the Trigger Scope activity.

Project compatibility

Windows - Legacy | Windows

Windows - Legacy, Windows configuration

Designer panel
  • Click Indicate target on screen to indicate the UI element to use as target.

    After you indicate the target, select the Menu button to access the following options:

    • Indicate target on screen - Indicate the target again.
    • Edit target - Open the selection mode to configure the target.
    • Remove informative screenshot - Remove the screenshot of the target application or web page.
    • Add to Object Repository - Add the current UI element to a library project, from where it can be reused throughout your automation process.
  • Mouse button - The mouse button triggering the event. Choose one of three options from the drop-down menu: Left, Middle or Right. The default value is Left.
  • Trigger mode - Specifies if the event is triggered when the mouse is pressed or released. Choose one of two options: Down or Up. The default value is Down.
  • Block event - Specifies whether the event is blocked from acting on the indicated element. If False, the element is executed against the element. If True, the event is blocked and can be later replayed within the activity handler, by using the Replay User Event activity (with the EventInfo property set to TriggerEventArgs.Event as the event to be replayed). This field supports only Boolean values. The default value is False.
  • Include children - Triggers the event if any of the child elements are targeted by the action. When selected, the children of the specified UI element are also monitored. This field supports only Boolean values. The default value is True.
Properties panel


  • Display name - The name displayed for the activity in the Designer panel. A display name is automatically generated when you indicate a target.


  • Mouse button - See Mouse button in the Designer panel.
  • Target - The target element: top-level window or UI element. Only strict selectors are supported, without anchors. Target element must be set. Before indicating on screen, this field is set to (null). Once the target is indicated, all properties regarding the element that was indicated are displayed.
    • Strict selector - The strict selector generated for the target UI element. It is empty for top-level windows.
    • Window selector (Application instance) - The selector for the application window (application/browser).


  • Enabled - If set to False, the trigger starts but does not fire any events. It can be enabled later at runtime, by using the Enable Local Trigger activity. This field supports only Boolean values. The default value is True.
  • Private - If selected, the values of variables and arguments are no longer logged at Verbose level. This field supports only Boolean (True, False) values. The default value is False.


  • Block event - See Block event in the Designer panel.
  • Include children - See Include children in the Designer panel.
  • Key modifiers - Add one or more key modifiers to use in combination with the action of the activity. The following options are available: None, Alt, Ctrl, Shift, and Win. The default option is None.

  • Scheduling mode - It specifies how to execute the actions when a trigger is fired. Choose one of five options from the drop-down menu:
    • Sequential - Actions are executed one after another.
    • Concurrent - Actions execution can overlap.
    • OneTime - Executes one action and exits monitoring.
    • Sequential Collapse - Ignores all upcoming events, except the latest, until the current event finishes execution.
    • Sequential Drop - Stops the previous event execution and starts the next event.

    For Sequential and Concurrent modes the monitoring continues until either the user stops the execution or a Break activity is met.

  • Trigger mode - See Trigger mode in the Designer panel.
  • Description
  • Project compatibility
  • Windows - Legacy, Windows configuration

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