com.smartgwt.client.widgets.grid.events

## Class ChangeEvent

- 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.grid.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)`

  - ### Method Summary

    All Methods Static Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `cancel()` The change may be cancelled
    `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()`
    `int` | `getColNum()` column number of the cell
    `DataClass` | `getFiringDataClass()` Returns the `DataClass` firing the event.
    `DynamicForm` | `getForm()` the managing DynamicForm instance
    `FormItem` | `getItem()` the editor (form item) itself (also available as "this").
    `java.lang.Object` | `getOldValue()` The previous value of the form item
    `int` | `getRowNum()` row number for the cell
    `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

    - #### getFiringDataClass

          public DataClass getFiringDataClass()

      Returns the `DataClass` firing the event.
      Returns:
        DataClass 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()

      The change may be cancelled
      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 editor (form item) itself (also available as "this"). Note that in addition to the standard FormItem APIs available on the editor, it also has:
      - a pointer back to the containing listGrid [`item.grid`]
      - the colNum being edited [`item.colNum`]
      - the rowNum being edited [`item.rowNum`]
      Returns:
        the editor (form item) itself (also available as "this"). Note that in addition to the standard FormItem APIs available on the editor, it also has:
        - a pointer back to the containing listGrid [`item.grid`]
        - the colNum being edited [`item.colNum`]
        - the rowNum being edited [`item.rowNum`]

    - #### 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

    - #### getRowNum

          public int getRowNum()

      row number for the cell
      Returns:
        row number for the cell

    - #### getColNum

          public int getColNum()

      column number of the cell
      Returns:
        column number of the cell