Allow Empty Value

Indicates whether to allow the empty value of ComboBox, DateTimePicker, NumericUpDown, and ToggleButton.

If you set the value of this property to "True", the Initialize Input Data pop-up menu is displayed in the PC Viewer and the Initialize button is displayed in the Android/iOS Viewer.

If you click the pop-up menu or button, the component is represented by an empty value and component value is set to empty.

But, components with a placeholder set will display the placeholder.