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bricks/dist/docs/en/keypress.md
yumoqing 1291f7fee3 fix: UiCode build_options uses valueField/textField fallback to 'value'/'text' 
When valueField/textField are not explicitly set in opts, the auto-select
logic (line 1140) and nullable empty-option creation (lines 1144-1145) used
data[0][undefined] which returned undefined, causing:
- Single-option selects to show blank (auto-select failed)
- nullable empty options to have undefined keys

Now extracts vf/tf local variables with ||'value'/||'text' fallback at the
top of build_options(), used consistently throughout.
2026-05-29 23:03:52 +08:00

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KeyPress

Widget Functionality: Listens for keyboard key events. When the user presses any key, it clears the current content and displays the name of the pressed key.
Type: Container widget
Parent Widget: VBox

Initialization Parameters

  • No special initialization parameters; inherits general parameters from bricks.VBox (such as layout-related options).

Main Events

  • keydown: Binds a global keyboard press event, triggering the key_handler method to process key logic.
    This event retrieves the event.key value and dynamically creates a text widget to display the key information.