HasValueChangeHandlers (GWT Javadoc)

Type Parameters:

T - the value about to be changed

All Superinterfaces:

HasHandlers

All Known Subinterfaces:

HasConstrainedValue<T>, HasValue<T>

All Known Implementing Classes:

CellWidget, CheckBox, DateBox, DatePicker, DoubleBox, IntegerBox, LongBox, PasswordTextBox, RadioButton, SimpleCheckBox, SimpleRadioButton, SuggestBox, TextArea, TextBox, TextBoxBase, ToggleButton, ValueBox, ValueBoxBase, ValueListBox, ValuePicker
```
public interface HasValueChangeHandlers<T>
extends HasHandlers
```
A widget that implements this interface is a public source of ValueChangeEvent events.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`HandlerRegistration`	`addValueChangeHandler(ValueChangeHandler<T> handler)`	Adds a `ValueChangeEvent` handler.

Methods inherited from interface com.google.gwt.event.shared.HasHandlers
fireEvent

- Method Detail
  - addValueChangeHandler
```
HandlerRegistration addValueChangeHandler(ValueChangeHandler<T> handler)
```
    Adds a ValueChangeEvent handler.
    
    Parameters:
    
    handler - the handler
    
    Returns:
    
    the registration for the event