ChangeEvent (Smart GWT EE API 14.0p (2026-01-20))

java.lang.Object
- com.google.web.bindery.event.shared.Event<H>
- - com.google.gwt.event.shared.GwtEvent<H>
  - - com.smartgwt.client.event.AbstractSmartEvent<ChangeHandler>
    - - com.smartgwt.client.widgets.form.fields.events.ChangeEvent

All Implemented Interfaces:: Cancellable

public class ChangeEvent
extends AbstractSmartEvent<ChangeHandler>
implements Cancellable

Nested Class Summary
- Nested classes/interfaces inherited from class com.google.gwt.event.shared.GwtEvent
  com.google.gwt.event.shared.GwtEvent.Type<H>

Field Summary
- Fields inherited from class com.smartgwt.client.event.AbstractSmartEvent
  jsObj

Constructor Summary

Constructors
Constructor and Description

ChangeEvent(com.google.gwt.core.client.JavaScriptObject jsObj)

Constructors
Constructor and Description
`ChangeEvent(com.google.gwt.core.client.JavaScriptObject jsObj)`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`cancel()` In your handler, Call this method to cancel the change,
`protected void`	`dispatch(ChangeHandler handler)`
`static <S extends HasChangeHandlers & com.google.gwt.event.shared.HasHandlers> void`	`fire(S source, com.google.gwt.core.client.JavaScriptObject jsObj)` Fires a open event on all registered handlers in the handler manager.If no such handlers exist, this method will do nothing.
`com.google.gwt.event.shared.GwtEvent.Type<ChangeHandler>`	`getAssociatedType()`
`FormItem`	`getFiringItem()` Returns the `FormItem` firing the event.
`DynamicForm`	`getForm()` the managing DynamicForm instance
`FormItem`	`getItem()` the form item itself (also available as "this")
`java.lang.Object`	`getOldValue()` The previous value of the form item
`static com.google.gwt.event.shared.GwtEvent.Type<ChangeHandler>`	`getType()` Gets the type associated with this event.
`java.lang.Object`	`getValue()` The new value of the form item
`boolean`	`isCancelled()`

Methods inherited from class com.smartgwt.client.event.AbstractSmartEvent
getFiringInstanceAsJavaScriptObject

Methods inherited from class com.google.gwt.event.shared.GwtEvent
assertLive, getSource, isLive, kill, revive

Methods inherited from class com.google.web.bindery.event.shared.Event
setSource, toDebugString, toString

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - ChangeEvent
```
public ChangeEvent(com.google.gwt.core.client.JavaScriptObject jsObj)
```
- Method Detail
  - getFiringItem
```
public FormItem getFiringItem()
```
    Returns the FormItem firing the event.
    
    Returns:
    
    FormItem firing the event
  - fire
```
public static <S extends HasChangeHandlers & com.google.gwt.event.shared.HasHandlers> void fire(S source,
                                                                                                com.google.gwt.core.client.JavaScriptObject jsObj)
```
    Fires a open event on all registered handlers in the handler manager.If no such handlers exist, this method will do nothing.
    
    Type Parameters:
    
    S - The event source
    
    Parameters:
    
    source - the source of the handlers
    
    jsObj - the native event
  - getType
```
public static com.google.gwt.event.shared.GwtEvent.Type<ChangeHandler> getType()
```
    Gets the type associated with this event.
    
    Returns:
    
    returns the handler type
  - dispatch
```
protected void dispatch(ChangeHandler handler)
```
    Specified by:
    
    dispatch in class com.google.gwt.event.shared.GwtEvent<ChangeHandler>
  - getAssociatedType
```
public final com.google.gwt.event.shared.GwtEvent.Type<ChangeHandler> getAssociatedType()
```
    Overrides:
    
    getAssociatedType in class com.google.gwt.event.shared.GwtEvent<ChangeHandler>
  - cancel
```
public void cancel()
```
    In your handler, Call this method to cancel the change,
    
    Specified by:
    
    cancel in interface Cancellable
  - isCancelled
```
public boolean isCancelled()
```
    Specified by:
    
    isCancelled in interface Cancellable
    
    Returns:
    
    true if cancelled
  - getForm
```
public DynamicForm getForm()
```
    the managing DynamicForm instance
    
    Returns:
    
    the managing DynamicForm instance
  - getItem
```
public FormItem getItem()
```
    the form item itself (also available as "this")
    
    Returns:
    
    the form item itself (also available as "this")
  - getValue
```
public java.lang.Object getValue()
```
    The new value of the form item
    
    Returns:
    
    The new value of the form item
  - getOldValue
```
public java.lang.Object getOldValue()
```
    The previous value of the form item
    
    Returns:
    
    The previous value of the form item

Class ChangeEvent

Nested Class Summary

Nested classes/interfaces inherited from class com.google.gwt.event.shared.GwtEvent

Field Summary

Fields inherited from class com.smartgwt.client.event.AbstractSmartEvent

Constructor Summary

Method Summary

Methods inherited from class com.smartgwt.client.event.AbstractSmartEvent

Methods inherited from class com.google.gwt.event.shared.GwtEvent

Methods inherited from class com.google.web.bindery.event.shared.Event

Methods inherited from class java.lang.Object

Constructor Detail

ChangeEvent

Method Detail

getFiringItem

fire

getType

dispatch

getAssociatedType

cancel

isCancelled

getForm

getItem

getValue

getOldValue