Interface HasChangedHandlers
- All Superinterfaces:
HasHandlers
- All Known Implementing Classes:
AIDataQuestionItem,AutoFitTextAreaItem,BlurbItem,BooleanItem,ButtonItem,CancelItem,CanvasItem,CheckboxItem,ColorItem,ColorPickerItem,ComboBoxItem,DateItem,DateRangeItem,DateTimeItem,DoubleItem,FileItem,FloatItem,FormItem,HeaderItem,HiddenItem,IntegerItem,IPickTreeItem,LinkItem,MiniDateRangeItem,MultiComboBoxItem,MultiFileItem,MultiPickerItem,NativeCheckboxItem,PasswordItem,PickTreeItem,PresetCriteriaItem,PresetDateRangeItem,RadioGroupItem,RelativeDateItem,ResetItem,RichTextItem,RowSpacerItem,SavedSearchItem,SectionItem,SelectItem,SelectOtherItem,SetFilterItem,ShuttleItem,SliderItem,SpacerItem,SpinnerItem,StaticTextItem,SubmitItem,TextAreaItem,TextItem,TimeItem,ToggleItem,ToolbarItem,UploadItem,ViewFileItem
-
Method Summary
Modifier and TypeMethodDescriptionaddChangedHandler(ChangedHandler handler) Called when a FormItem's value has been changed as the result of user interaction.Methods inherited from interface com.google.gwt.event.shared.HasHandlers
fireEvent
-
Method Details
-
addChangedHandler
Called when a FormItem's value has been changed as the result of user interaction. This method fires after the newly specified value has been stored.Change/Changed notifications vs "...When" rules: the
changeandchangedevents only fire when an end user modifies a field value. If you are trying to dynamically control the visibility or enabled state of other components in response to these events, consider instead using properties such asCanvas.visibleWhen,item.readOnlyWhen,Canvas.enableWhenon the target component. (Similar properties are available onFormItem,Canvas,MenuItemand other components).- Parameters:
handler- the changed handler- Returns:
HandlerRegistrationused to remove this handler
-