com.smartgwt.client.widgets.form

Interface FormItemInputTransformer

public interface FormItemInputTransformer

Method Summary

Modifier and Type	Method and Description
java.lang.Object	transformInput(DynamicForm form, FormItem item, java.lang.Object value, java.lang.Object oldValue) Called when a FormItem's value is about to change as the result of user interaction.

Method Detail

transformInput

java.lang.Object transformInput(DynamicForm form,
                                FormItem item,
                                java.lang.Object value,
                                java.lang.Object oldValue)

Called when a FormItem's value is about to change as the result of user interaction. This method fires after the user performed an action that would change the value of this field, and allows the developer to modify / reformat the value before it gets validated / saved. Fires before the change event.

Parameters:

form - the managing DynamicForm instane

item - the form item itself

value - the new value of the form item

oldValue - the previous (current) value of the form item

Returns:

the desired new value for the form item