MACROMEDIA FLEX-CREATING ADVANCED COMPONENTS Manual de usuario descargar pdf (Pagina 43)

Binding directions

Binding directions between the spreadsheet and the component property can be:

• Two way between the spreadsheet and component property

• One way: spreadsheet to the component property

• One way: component property to the spreadsheet

You can also bind sub-elements and sub-properties to the spreadsheet.

Related Topics

• Two-direction bindings

• Spreadsheet to component bindings

• Component to spreadsheet bindings

• Sub-element and Sub-property Binding

12.2.1 Two-direction bindings

When you use bindings with two-way direction, the spreadsheet is updated when the property value

changes and the property value is updated when the spreadsheet changes.

Note:

The component property needs to have both getter and setter functions for this to work and they must

be marked as Bindable.

[Bindable]

public function get value():Number

{

...

}

public function set value(val:Number):void

{

...

}

Bind a single value property.

For example:

proxy.bind(propertyName, null, bindingId, BindingDirection.BOTH, InputBindings.SINGLETON, OutputBind

ings.SINGLETON);

Bind an array as a 2D array.

For example:

proxy.bind(propertyName, null, bindingId, BindingDirection.BOTH, InputBindings.ARRAY2D, OutputBindings.AR

RAY2D);

Bind an array as a 1D array.

For example:

proxy.bind(propertyName, null, bindingId, BindingDirection.BOTH, InputBindings.ARRAY, OutputBindings.ARRAY);

2013-05-0643

Appendix B: Custom Property Sheet API Reference

1 2 ... 38 39 40 41 42 43 44 45 46 47 48 ... 51 52

Sin comentarios

MACROMEDIA FLEX-CREATING ADVANCED COMPONENTS Manual de usuario Pagina 43