MACROMEDIA FLEX-GETTING STARTED WITH FLEX User Manual download pdf (Page 60)

</mx:Canvas>

</mx:HDividedBox>

</mx:Application>

When you launch this application you should see something

similar to Figure 4-6.

You can adjust the size of the panel on the right by grabbing

the control and moving the mouse to the left or right. This will

move the image to match the size of the panel.

The Form Container

The Form container lets you control the layout of a form, mark

form fields as required or, optionally, handle error messages,

and bind your form data to the Flex data model to perform data

checking and validation.

The Form container, like all containers, encapsulates and lays

out its children. The Form container controls the size and layout

of the contents of the form. The FormHeader defines a heading

for your Form. Multiple FormHeading controls are allowed. A

FormItem container specifies a Form element consisting of the

following parts:

• A single label

Figure 4-6. A constraint-based layout

44 | Chapter 4: Flex Controls and Layout

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MACROMEDIA FLEX-GETTING STARTED WITH FLEX User Manual Page 60