(Preview)
Package | mx.containers |
Class | public class Form |
Inheritance | Form ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Language Version: | ActionScript 3.0 |
Product Version: | Flex 3 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
![]() | Starting with Flex 4.5, Adobe recommends that you use the spark.components.Form class as an alternative to this class. |
The Form container lets you control the layout of a form, mark form fields as required or optional, handle error messages, and bind your form data to the Flex data model to perform data checking and validation. It also lets you use style sheets to configure the appearance of your forms.
The following table describes the components you use to create forms in Flex:
Component | Tag | Description |
---|---|---|
Form |
<mx:Form>
| Defines the container for the entire form, including the overall form layout. Use the FormHeading control and FormItem container to define content. You can also insert other types of components in a Form container. |
FormHeading |
<mx:FormHeading>
| Defines a heading within your form. You can have multiple FormHeading controls within a single Form container. |
FormItem |
<mx:FormItem>
| Contains one or more form children arranged horizontally or vertically. Children can be controls or other containers. A single Form container can hold multiple FormItem containers. |
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The <mx:Form>
tag inherits all the tag
attributes of its superclass and adds the following tag attributes:
<mx:Form Styles horizontalGap="8" indicatorGap="14" labelWidth="Calculated" paddingBottom="16" paddingTop="16" verticalGap="6" > ... child tags ... </mx:Form>
More examples
Related API Elements
Public Properties
Property | Defined By | ||
---|---|---|---|
![]() | accessibilityImplementation : AccessibilityImplementation
The current accessibility implementation (AccessibilityImplementation)
for this InteractiveObject instance. | InteractiveObject | |
![]() | accessibilityProperties : AccessibilityProperties
The current accessibility options for this display object. | DisplayObject | |
![]() | alpha : Number
Indicates the alpha transparency value of the object specified. | DisplayObject | |
![]() | blendMode : String
A value from the BlendMode class that specifies which blend mode to use. | DisplayObject | |
![]() | blendShader : Shader [write-only]
Sets a shader that is used for blending the foreground and background. | DisplayObject | |
![]() | buttonMode : Boolean
Specifies the button mode of this sprite. | Sprite | |
![]() | cacheAsBitmap : Boolean
If set to true, Flash runtimes cache an internal bitmap representation of the
display object. | DisplayObject | |
![]() | cacheAsBitmapMatrix : Matrix
If non-null, this Matrix object defines how a display object is rendered when
cacheAsBitmap is set to true. | DisplayObject | |
![]() | constructor : Object
A reference to the class object or constructor function for a given object instance. | Object | |
![]() | contextMenu : NativeMenu
Specifies the context menu associated with this object. | InteractiveObject | |
![]() | dropTarget : DisplayObject [read-only]
Specifies the display object over which the sprite is being dragged, or on
which the sprite was dropped. | Sprite | |
![]() | filters : Array
An indexed array that contains each filter object currently associated with the display object. | DisplayObject | |
![]() | focusRect : Object
Specifies whether this object displays a focus rectangle. | InteractiveObject | |
![]() | graphics : Graphics [read-only]
Specifies the Graphics object that belongs to this sprite where vector
drawing commands can occur. | Sprite | |
![]() | hitArea : Sprite
Designates another sprite to serve as the hit area for a sprite. | Sprite | |
![]() | loaderInfo : LoaderInfo [read-only]
Returns a LoaderInfo object containing information about loading the file
to which this display object belongs. | DisplayObject | |
![]() | mask : DisplayObject
The calling display object is masked by the specified mask object. | DisplayObject | |
![]() | metaData : Object
Obtains the meta data object of the DisplayObject instance if meta data was stored alongside the
the instance of this DisplayObject in the SWF file through a PlaceObject4 tag. | DisplayObject | |
![]() | mouseChildren : Boolean
Determines whether or not the children of the object are mouse, or user input device, enabled. | DisplayObjectContainer | |
![]() | mouseEnabled : Boolean
Specifies whether this object receives mouse, or other user input, messages. | InteractiveObject | |
![]() | mouseX : Number [read-only]
Indicates the x coordinate of the mouse or user input device position, in pixels. | DisplayObject | |
![]() | mouseY : Number [read-only]
Indicates the y coordinate of the mouse or user input device position, in pixels. | DisplayObject | |
![]() | name : String
Indicates the instance name of the DisplayObject. | DisplayObject | |
![]() | needsSoftKeyboard : Boolean
Specifies whether a virtual keyboard (an on-screen, software keyboard) should display
when this InteractiveObject instance receives focus. | InteractiveObject | |
![]() | opaqueBackground : Object
Specifies whether the display object is opaque with a certain background color. | DisplayObject | |
![]() | root : DisplayObject [read-only]
For a display object in a loaded SWF file, the root property is the
top-most display object in the portion of the display list's tree structure represented by that SWF file. | DisplayObject | |
![]() | scale9Grid : Rectangle
The current scaling grid that is in effect. | DisplayObject | |
![]() | scrollRect : Rectangle
The scroll rectangle bounds of the display object. | DisplayObject | |
![]() | softKeyboard : String
Controls the appearance of the soft keyboard. | InteractiveObject | |
![]() | softKeyboardInputAreaOfInterest : Rectangle
Defines the area that should remain on-screen when a soft keyboard is displayed (not available on iOS). | InteractiveObject | |
![]() | soundTransform : flash.media:SoundTransform
Controls sound within this sprite. | Sprite | |
![]() | stage : Stage [read-only]
The Stage of the display object. | DisplayObject | |
![]() | tabChildren : Boolean
Determines whether the children of the object are tab enabled. | DisplayObjectContainer | |
![]() | tabEnabled : Boolean
Specifies whether this object is in the tab order. | InteractiveObject | |
![]() | tabIndex : int
Specifies the tab ordering of objects in a SWF file. | InteractiveObject | |
![]() | textSnapshot : flash.text:TextSnapshot [read-only]
Returns a TextSnapshot object for this DisplayObjectContainer instance. | DisplayObjectContainer | |
![]() | useHandCursor : Boolean
A Boolean value that indicates whether the pointing hand (hand cursor) appears when the pointer rolls
over a sprite in which the buttonMode property is set to true. | Sprite |
Protected Properties
Public Methods
Method | Defined By | ||
---|---|---|---|
![]() | addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void
Registers an event listener object with an EventDispatcher object so that the listener
receives notification of an event. | EventDispatcher | |
![]() |
Indicates whether the security restrictions
would cause any display objects to be omitted from the list returned by calling
the DisplayObjectContainer.getObjectsUnderPoint() method
with the specified point point. | DisplayObjectContainer | |
![]() |
Determines whether the specified display object is a child of the DisplayObjectContainer instance or
the instance itself. | DisplayObjectContainer | |
![]() |
Returns a rectangle that defines the area of the display object relative to the coordinate system
of the targetCoordinateSpace object. | DisplayObject | |
![]() |
Returns an array of objects that lie under the specified point and are children
(or grandchildren, and so on) of this DisplayObjectContainer instance. | DisplayObjectContainer | |
![]() |
Returns a rectangle that defines the boundary of the display object,
based on the coordinate system defined by the targetCoordinateSpace
parameter, excluding any strokes on shapes. | DisplayObject | |
![]() |
Converts the point object from the Stage (global) coordinates
to the display object's (local) coordinates. | DisplayObject | |
![]() |
Converts a two-dimensional point from the Stage (global) coordinates to a
three-dimensional display object's (local) coordinates. | DisplayObject | |
![]() |
Checks whether the EventDispatcher object has any listeners registered for a specific type
of event. | EventDispatcher | |
![]() |
Indicates whether an object has a specified property defined. | Object | |
![]() |
Evaluates the bounding box of the display object to see if it overlaps or intersects with the
bounding box of the obj display object. | DisplayObject | |
![]() |
Evaluates the display object to see if it overlaps or intersects with the
point specified by the x and y parameters. | DisplayObject | |
![]() |
Indicates whether an instance of the Object class is in the prototype chain of the object specified
as the parameter. | Object | |
![]() |
Converts a three-dimensional point of the three-dimensional display
object's (local) coordinates to a two-dimensional point in the Stage (global) coordinates. | DisplayObject | |
![]() |
Converts the point object from the display object's (local) coordinates to the
Stage (global) coordinates. | DisplayObject | |
![]() |
Indicates whether the specified property exists and is enumerable. | Object | |
![]() |
Removes all child DisplayObject instances from the child list of the DisplayObjectContainer instance. | DisplayObjectContainer | |
![]() |
Removes a listener from the EventDispatcher object. | EventDispatcher | |
![]() |
Raises a virtual keyboard. | InteractiveObject | |
![]() |
Sets the availability of a dynamic property for loop operations. | Object | |
![]() |
Lets the user drag the specified sprite. | Sprite | |
![]() |
Lets the user drag the specified sprite on a touch-enabled device. | Sprite | |
![]() |
Recursively stops the timeline execution of all MovieClips rooted at this object. | DisplayObjectContainer | |
![]() |
Ends the startDrag() method. | Sprite | |
![]() |
Ends the startTouchDrag() method, for use with touch-enabled devices. | Sprite | |
![]() |
Swaps the z-order (front-to-back order) of the two specified child objects. | DisplayObjectContainer | |
![]() |
Swaps the z-order (front-to-back order) of the child objects at the two specified index positions in the
child list. | DisplayObjectContainer | |
![]() |
Returns the string representation of this object, formatted according to locale-specific conventions. | Object | |
![]() |
Returns the primitive value of the specified object. | Object | |
![]() |
Checks whether an event listener is registered with this EventDispatcher object or any of
its ancestors for the specified event type. | EventDispatcher |
Protected Methods
Method | Defined By |
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Styles
Styles are either common or associated with a specific theme. If the style is common, it can be used with any theme. If a style is associated with a specific theme, it can only be used if your application uses that theme.
Common Styles
Style | Description | Defined By | ||
---|---|---|---|---|
![]() | Type: String CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 If a background image is specified, this style specifies whether it is fixed with regard to the viewport ( "fixed" ) or scrolls along with the content ("scroll" ). | Container | ||
![]() | Type: String CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 The vertical distance in pixels from the top edge of the content area to the control's baseline position. | UIComponent | ||
![]() | Type: Class CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 The border skin class of the component. | Container | ||
![]() | Type: String CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Bounding box style. | Container | ||
![]() | Type: String CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 The vertical distance, in pixels, from the bottom edge of the component to the bottom edge of its parent container's content area. | UIComponent | ||
![]() | Type: uint Format: Color CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Color of text in the component, including the component label. | Container | ||
![]() | Type: String CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 The directionality of the text displayed by the component. | Container | ||
![]() | Type: uint Format: Color CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Color of text in the component if it is disabled. | Container | ||
![]() | Type: Number CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 The alpha value for the overlay that is placed on top of the container when it is disabled. | Container | ||
![]() | Type: uint Format: Color CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Color of the component highlight when validation fails. | UIComponent | ||
![]() | Type: String CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Sets the antiAliasType property of internal TextFields. | Container | ||
![]() | Type: String CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Name of the font to use. | Container | ||
![]() | Type: String CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Sets the gridFitType property of internal TextFields that represent text in Flex controls. | Container | ||
![]() | Type: Number CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Sets the sharpness property of internal TextFields that represent text in Flex controls. | Container | ||
![]() | Type: Number Format: Length CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Height of the text, in pixels. | Container | ||
![]() | Type: String CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Determines whether the text is italic font. | Container | ||
![]() | Type: Number CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Sets the thickness property of internal TextFields that represent text in Flex controls. | Container | ||
![]() | Type: String CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Determines whether the text is boldface. | Container | ||
![]() | Type: String CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 The horizontal distance in pixels from the center of the component's content area to the center of the component. | UIComponent | ||
horizontalGap | Type: Number Format: Length CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Number of pixels between children in the horizontal direction. The default value depends on the component class; if not overridden for the class, the default value is 8. | Form | ||
![]() | Type: String CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 The name of the horizontal scrollbar style. | Container | ||
indicatorGap | Type: Number Format: Length CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Number of pixels between the label and child components. The default value is 14. | Form | ||
![]() | Type: String CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4.5 Runtime Versions: Flash10, AIR 2.5 The primary interaction mode for this component. | UIComponent | ||
![]() | Type: Boolean CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 A Boolean value that indicates whether kerning is enabled ( true ) or disabled (false ). | Container | ||
labelWidth | Type: Number Format: Length CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Width of the form labels. The default is the length of the longest label in the form. | Form | ||
![]() | Type: String CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4.1 Runtime Versions: Flash10, AIR 1.5 Specifies the desired layout direction of a component. | UIComponent | ||
![]() | Type: String CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 The horizontal distance, in pixels, from the left edge of the component to the left edge of its parent container's content area. | UIComponent | ||
![]() | Type: Number CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 The number of additional pixels to appear between each character. | Container | ||
![]() | Type: String CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 The locale of the text displayed by this component. | Container | ||
paddingBottom | Type: Number Format: Length CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Number of pixels between the container's bottom border and the bottom edge of its content area. The default value is 16. | Form | ||
![]() | Type: Number Format: Length CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Number of pixels between the component's left border and the left edge of its content area. | Container | ||
![]() | Type: Number Format: Length CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Number of pixels between the component's right border and the right edge of its content area. | Container | ||
paddingTop | Type: Number Format: Length CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Number of pixels between the container's top border and the top edge of its content area. The default value is 16. | Form | ||
![]() | Type: String CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 The horizontal distance, in pixels, from the right edge of the component to the right edge of its parent container's content area. | UIComponent | ||
![]() | Type: Boolean CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4.5 Runtime Versions: Flash10, AIR 1.5 Show the error border or skin when this component is invalid | UIComponent | ||
![]() | Type: Boolean CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 4.5 Runtime Versions: Flash10, AIR 1.5 Show the error tip when this component is invalid and the user rolls over it | UIComponent | ||
![]() | Type: String CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Alignment of text within a container. | Container | ||
![]() | Type: String CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Determines whether the text is underlined. | Container | ||
![]() | Type: Class CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 4 Runtime Versions: Flash10, AIR 1.5 The class implementing IUITextField that is used by this component to render text. | Container | ||
![]() | Type: Number Format: Length CSS Inheritance: Yes Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Offset of first line of text from the left side of the container, in pixels. | Container | ||
![]() | Type: String CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 The vertical distance, in pixels, from the top edge of the component to the top edge of its parent container's content area. | UIComponent | ||
![]() | Type: String CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 The vertical distance in pixels from the center of the component's content area to the center of the component. | UIComponent | ||
verticalGap | Type: Number Format: Length CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 Number of pixels between children in the vertical direction. The default value depends on the component class; if not overridden for the class, the default value is 6. | Form | ||
![]() | Type: String CSS Inheritance: No Language Version: ActionScript 3.0 Product Version: Flex 3 Runtime Versions: Flash9, AIR 1.1 The name of the vertical scrollbar style. | Container |
Spark Theme Styles
Halo Theme Styles
Public Constants
Property Detail
Constructor Detail
Method Detail
Examples How to use this example
FormExample.mxml
<?xml version="1.0"?> <!-- Simple example to demonstrate Halo Form layout container. --> <s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/mx"> <fx:Declarations> <fx:Model id="checkModel"> <User> <FirstName>{fname.text}</FirstName> <DOB>{dob.text}</DOB> <Email>{email.text}</Email> <Age>{age.text}</Age> <SSN>{ssn.text}</SSN> <Zip>{zip.text}</Zip> <Phone>{phone.text}</Phone> </User> </fx:Model> <mx:StringValidator source="{fname}" property="text" minLength="4" maxLength="12"/> <mx:PhoneNumberValidator source="{phone}" property="text"/> <mx:DateValidator source="{dob}" property="text"/> <mx:EmailValidator source="{email}" property="text"/> <mx:NumberValidator source="{age}" property="text" integerError="Enter Integer value" minValue="18" maxValue="100" domain="int"/> <mx:SocialSecurityValidator source="{ssn}" property="text"/> <mx:ZipCodeValidator source="{zip}" property="text"/> </fx:Declarations> <s:Panel title="Form Container Example" width="75%" height="75%" horizontalCenter="0" verticalCenter="0"> <s:VGroup left="10" right="10" top="10" bottom="10"> <s:Label width="100%" color="blue" text="Moving from one form field to another triggers the validator."/> <mx:Form width="100%" height="100%"> <mx:FormHeading label="Enter values into the form."/> <mx:FormItem label="First name"> <mx:TextInput id="fname" width="200"/> </mx:FormItem> <mx:FormItem label="Date of birth (mm/dd/yyyy)"> <mx:TextInput id="dob" width="200"/> </mx:FormItem> <mx:FormItem label="E-mail address"> <mx:TextInput id="email" width="200"/> </mx:FormItem> <mx:FormItem label="Age"> <mx:TextInput id="age" width="200"/> </mx:FormItem> <mx:FormItem label="SSN"> <mx:TextInput id="ssn" width="200"/> </mx:FormItem> <mx:FormItem label="Zip"> <mx:TextInput id="zip" width="200"/> </mx:FormItem> <mx:FormItem label="Phone"> <mx:TextInput id="phone" width="200"/> </mx:FormItem> </mx:Form> </s:VGroup> </s:Panel> </s:Application>
Wed Nov 21 2018, 06:34 AM -08:00