B25.FormField
Overview
This class represents a field on the form. This can be either a field on the main form, or on a related list.
This class is extended by: B25.Lookup.
Methods
onUpdate (without parameters)
List<B25.FormEventHandler> onUpdate()Returns a reference to the list of handlers that have been defined to trigger when the field’s value is updated by the user. Because this method returns a reference to the actual list (and not a copy), any changes you make to this list will directly affect the defined handlers. This method is intended to be used in the customize method defined in your implementation of the B25.Form.Customizable interface. Using it anywhere else, such as inside one of your event handlers, will not have any effect.
Return value: List<B25.FormEventHandler>
onUpdate (with parameter)
void onUpdate(B25.FormEventHandler handler)Adds the given handler to the list of handlers that have been defined to trigger when the field’s value is updated by the user. This method is a convenience method, and is identical to calling onUpdate().add(B25.FormEventHandler handler).
Parameters:
Name | Type | Description |
|---|---|---|
handler | The handler to trigger when the field is updated. |
updateValue
void updateValue(Object newValue)Calling this method allows you to directly set the value of the field. Unlike the value being updated by the user on the form, this action will not trigger any event handlers. Use this method inside your own handlers.
Parameters:
Name | Type | Description |
|---|---|---|
newValue | Object | The value that you want to set the field to. |
updateValue
void updateValue(Object newValue, Boolean triggerChangeHandlers)Like the previous method, calling this method allows you to directly set the value of the field. The second parameter lets you choose if you want this change to trigger any other handlers that have been defined for the form.
Be careful about using this method with triggerChangeHandlers=true, because it can cause infinite recursion.
Parameters:
Name | Type | Description |
|---|---|---|
newValue | Object | The value that you want to set the field to. |
triggerChangeHandlers | Boolean | Whether this update should trigger other event handlers. |
hide
void hide()Hides a field on the reservation form.
show
void show()Can be called after the hide method to let a field appear on the reservation form.
disable
void disable()Disables a field on the reservation form, which will block any input in the field.
enable
void enable()Can be called after the disable method to let a field be available for input again on the reservation form.