Comprehensive and Detailed Explanation From Pega Robotics System Exact Extract:
When working with UI controls such as combo boxes in a custom user interface (Windows form or User Interaction form), you can expose their methods and events by dragging the control from the Palette or Object Explorer to the automation design surface.
According to the Pega Robotics System Design and Implementation Guide, section “Accessing Control Methods and Properties in Automations”:
“To access a control’s methods or events in an automation, drag the control (such as a combo box or text box) from the Object Explorer or Palette to the automation surface.
The Select Action dialog box appears, allowing you to filter and choose the specific method or event (for example, AddItem, RemoveItem, or Clear).”
Detailed Reasoning:
A. Drag the combo box to the automation surface... – Correct. This opens the Select Action dialog, exposing all available methods and events for that control.
B. Open the Globals tab... – Incorrect. The combo box methods are not global; they belong to a specific UI form.
C. Select the combo box in a design form... – Incorrect. This action edits UI layout, not automation logic.
D. Select the combo box in the Palette tab... – Incorrect. The properties grid shows attributes, not callable methods.
[Reference:Extracted and verified from Pega Robotics System Design and Implementation Guide, Using Control Methods and Events in Automations section (Pega Robotics 19.1 and later)., , ]