<af:showDetailHeader>

UIComponent class: oracle.adf.view.rich.component.rich.layout.RichShowDetailHeader
Component type: oracle.adf.RichShowDetailHeader

The showDetailHeader provides a means of toggling the contents under a header between being disclosed(shown) or undisclosed(hidden).

On mobile devices the showDetailHeader renders nothing itself, but does render its children.

Appearance

If the "disclosed" property on the showDetailHeader is set to false, the icon arrow will point sideways, and the children of the showDetailHeader will not be rendered. If the "disclosed" property of the showDetailHeader is set to true, the icon arrow will point down and the children of the showDetailHeader will be rendered.

Attachment Mode

In Attachment Mode, contentDelivery will be forced to contentDelivery="immediate"

Geometry Management

This component cannot be stretched by a parent layout component that stretches its children, e.g., panelStretchLayout.
This component does not stretch its children.

Events

Clicking on the icon of the showDetailHeader will deliver a DisclosureEvent to the server.

Unsupported Attributes

The disclosedTransient attribute is not supported by the rich client renderers and may only be used with the Apache MyFaces Trinidad RenderKit. If this attribute is set to true in an ADF page, the component will not function correctly. This attribute appears in ADF due to it being inherited from UIXShowDetail. The value must either not be set, or must be set to false, a value of true will cause problems.

Code Example(s)

Basic example.

<af:showDetailHeader text="ShowDetail Header" id="showDetail1" >
  <af:panelHeader text="Header"/>
</af:showDetailHeader>

Events

Type	Phases	Description
org.apache.myfaces.trinidad.event.DisclosureEvent	Apply Request Values, Invoke Application	The disclosure event is delivered when a node is disclosed.
org.apache.myfaces.trinidad.event.AttributeChangeEvent	Invoke Application, Apply Request Values	Event delivered to describe an attribute change. Attribute change events are not delivered for any programmatic change to a property. They are only delivered when a renderer changes a property without the application's specific request. An example of an attribute change events might include the width of a column that supported client-side resizing.

Type

Phases

Description

org.apache.myfaces.trinidad.event.DisclosureEvent

Apply Request Values,
Invoke Application

The disclosure event is delivered when a node is disclosed.

org.apache.myfaces.trinidad.event.AttributeChangeEvent

Invoke Application,
Apply Request Values

Event delivered to describe an attribute change. Attribute change events are not delivered for any programmatic change to a property. They are only delivered when a renderer changes a property without the application's specific request. An example of an attribute change events might include the width of a column that supported client-side resizing.

Supported Facets

Name	Description
context	A Facet that can be used to display contextual information on the header. The contextual information is displayed next to the header text
help	This facet is deprecated, helpTopicId should be used for providing help. Both help facet when rendered inline and helpTopicId with instructions text are rendered in the same spot, so if helpTopicId is specified and it has instructions text, the help facet will not be rendered if specified inline. Help content that is displayed to the user. The content of the help is displayed inline inside the header content or as a popup through a link. The attribute helpType controls whether the help is displayed inline or in a popup.
info	A facet that displays addition information inside the header content. This informtion is displayed end aligned under the header
legend	A Facet that can be used to display legend information on the header. If the help facet has a child and it is visible, the contents of the legend facet will be rendered beneath the task stamps. If the legend facet is not visible or no children exist, then it gets rendered below the title.
menuBar	MenuBar component that is rendered on the header.
toolbar	Toolbar component that is rendered on the header.

Name

Description

context

A Facet that can be used to display contextual information on the header. The contextual information is displayed next to the header text

help

This facet is deprecated, helpTopicId should be used for providing help. Both help facet when rendered inline and helpTopicId with instructions text are rendered in the same spot, so if helpTopicId is specified and it has instructions text, the help facet will not be rendered if specified inline. Help content that is displayed to the user. The content of the help is displayed inline inside the header content or as a popup through a link. The attribute helpType controls whether the help is displayed inline or in a popup.

info

A facet that displays addition information inside the header content. This informtion is displayed end aligned under the header

legend

A Facet that can be used to display legend information on the header. If the help facet has a child and it is visible, the contents of the legend facet will be rendered beneath the task stamps. If the legend facet is not visible or no children exist, then it gets rendered below the title.

menuBar

MenuBar component that is rendered on the header.

toolbar

Toolbar component that is rendered on the header.

Attributes

Name	Type	Supports EL?	Description
attributeChangeListener	javax.el.MethodExpression	Only EL	a method reference to an attribute change listener. Attribute change events are not delivered for any programmatic change to a property. They are only delivered when a renderer changes a property without the application's specific request. An example of an attribute change events might include the width of a column that supported client-side resizing.
binding	oracle.adf.view.rich.component.rich.layout.RichShowDetailHeader	Only EL	an EL reference that will store the component instance on a bean. This can be used to give programmatic access to a component from a backing bean, or to move creation of the component to a backing bean.
clientComponent	boolean	Yes	whether a client-side component will be generated. A component may be generated whether or not this flag is set, but if client Javascript requires the component object, this must be set to true to guarantee the component's presence. Client component objects that are generated today by default may not be present in the future; setting this flag is the only way to guarantee a component's presence, and clients cannot rely on implicit behavior. However, there is a performance cost to setting this flag, so clients should avoid turning on client components unless absolutely necessary.
contentDelivery	String	Yes	Valid Values: immediate, lazyUncached whether the undisclosed content is delivered with the initial page. When contentDelivery is "immediate", the content is inlined into the initial page. If contentDelivery is "lazy", the content will be delivered to the client only after the first request to disclose the component. If contentDelivery is "lazyUncached", the content will be delivered each and every time the component's disclosure changes. By default, contentDelivery is lazyUncached.
contentStyle	String	Yes	the inline style of the content region.
customizationId	String	Yes	This attribute is deprecated. The 'id' attribute should be used when applying persistent customizations. This attribute will be removed in the next release.
disclosed	boolean	Yes	whether or not to disclose the children
disclosedTransient	boolean	Yes	stops the local value of disclosed from being set by renderers. This allows the value to always be taken from the value of the disclosed value expression. Disclosed values must be updated in other ways (i.e. from a disclosure listener)
disclosureListener	javax.el.MethodExpression	Only EL	a method reference to a disclosure listener
dontPersist	String[]	Yes	a list of attributes whose changes are NOT to be persisted by FilteredPersistenceChangeManager via the "Persistent Change Manager" registered in adf-config.xml. The token 'ALL' can be used in the list here to indicate that all attribute changes that the component implicitly persists should be excluded. If there is a conflict of values, "dontPersist" always precedes "persist".
headerLevel	int	Yes	allows the default HTML header level assignment (H1 through H6) of the header to be overridden. Header components are assigned HTML header level assignements of H1 through H6. (Similar to size) the header level assigned is determined based on containment within other header components. For example, a header that is not contained by another header component will automatically render as an H1 header level. A child header contained inside this header would automatically render as an H2 header level. While the display of header components is determined by the size skinning selector assigned, HTML header level is important for correct page structure, especially when used with screen reader applications. The headerLevel attribute by default is -1, where the HTML header level is then calculated by containment as defined above. This is the preferred setting - it is recommended that you design your page nesting header components to take advantage of the automatically assigned header levels. Alternately, setting the headerLevel attribute to values 1 through 6 will force the corresponding HTML header level to render as part of the header component, regardless of its containment with other header components on the page. Plesae be careful if overriding the header level! The HTML header level assignments (H1 through H6) controlled by this attribute are relied upon by screen reader applications to appropriately identify the underlying structure of the page. Make sure your use of header components and assignment of header levels make sense for your page. When using an override value, consider the effects of having headers inside disclosable sections of the page.
helpTopicId	String	Yes	the id used to look up a topic in a helpProvider.
helpType	String	Yes	Valid Values: inline, link Along with the help facet this is deprecated, helpTopicId should be used for providing help. Controls if the help is displayed inline or as a link to a popup.
icon	String	Yes	the URI of an image to be displayed in the header. This attribute supports these various types of URIs: absolute - an absolute path to the image, like "http://oracleimg.com/admin/images/ocom/hp/oralogo_small.gif" relative - a path located relatively to the source page, like "bullet.jpg" context relative - a path relatively based on the web application's context root, like "/images/error.png" server relative - a path relatively based on the web server by application name, like "//adf-richclient-demo-context-root/images/error.png" As icon does not allow alternative text to be provided for the image, in order to create an accessible product icon must only be used when its use is purely decorative.
id	String	No	the identifier for the component. The identifier must follow a subset of the syntax allowed in HTML: Must not be a zero-length String. First character must be an ASCII letter (A-Za-z) or an underscore ('_'). Subsequent characters must be an ASCII letter or digit (A-Za-z0-9), an underscore ('_'), or a dash ('-').
immediate	boolean	Yes	whether data validation - client-side or server-side - should be skipped when events are generated by this component. When immediate is false (the default), the disclosure event will be delivered during the Invoke Application phase, which will trigger validation. When set to true, the disclosure event will be executed during the Apply Request Values phase.
inlineStyle	String	Yes	the CSS styles to use for this component. This is intended for basic style changes. The inlineStyle is a set of CSS styles that are applied to the root DOM element of the component. If the inlineStyle's CSS properties do not affect the DOM element you want affected, then you will have to create a skin and use the skinning keys which are meant to target particular DOM elements, like ::label or ::icon-style.
maximizeListener	javax.el.MethodExpression	Only EL	a method reference to a maximize listener
maximized	boolean	Yes	whether the children are currently maximized
messageType	String	Yes	Valid Values: info, confirmation, warning, none, error whether an error, info, confirmation, or warning header is needed.
partialTriggers	String[]	Yes	the IDs of the components that should trigger a partial update. This component will listen on the trigger components. If one of the trigger components receives an event that will cause it to update in some way, this component will request to be updated too. Identifiers are relative to the source component (this component), and must account for NamingContainers. If your component is already inside of a naming container, you can use a single colon to start the search from the root of the page, or multiple colons to move up through the NamingContainers - "::" will pop out of the component's naming container (or itself if the component is a naming container) and begin the search from there, ":::" will pop out of two naming containers (including itself if the component is a naming container) and begin the search from there, etc.
persist	String[]	Yes	a list of attributes whose changes are to be persisted by FilteredPersistenceChangeManager via the "Persistent Change Manager" registered in adf-config.xml. The token 'ALL' can be used in the list here to indicate that all attribute changes that the component implicitly persists should be included.
rendered	boolean	Yes	whether the component is rendered. When set to false, no output will be delivered for this component (the component will not in any way be rendered, and cannot be made visible on the client). If you want to change a component's rendered attribute from false to true using PPR, set the partialTrigger attribute of its parent component so the parent refreshes and in turn will render this component.
shortDesc	String	Yes	the short description of the component. This text is commonly used by user agents to display tooltip help text, in which case the behavior for the tooltip is controlled by the user agent, e.g. Firefox 2 truncates long tooltips. For form components, the shortDesc is displayed in a note window. For components that support the helpTopicId attribute it is recommended that helpTopicId is used as it is more flexible and is more accessibility-compliant.
showMaximize	String	Yes	Valid Values: never, auto, always Whether to display the maximize control to allow this component to be maximized. The default value, `auto`, allows the framework to determine whether the maximize control should be displayed beased on a number of factors, including the platform that the component is being displayed on.
size	int	Yes	allows the default skinning size of the header to be overridden. Sizes for skinning start at size 0 (the largest) and progress to size 5 (the smallest). The size is determined based on containment within other header components, and is accomplished via the assignement of skinning keys. For example, a header that is not contained by another header component will automatically be displayed as size 0. A child header contained inside this header would automatically be displayed as size 1. The size attribute by default is -1, where the size is then calculated by containment as defined above. This is the preferred setting - it is recommended that you design your page nesting header components to take advantage of the automatically assigned sizes. Alternately, setting the size attribute to values 0 through 5 will force that size skinning value assignment on the header component, regardless of its containment with other header components on the page. Please note that while header components support a total of six levels of skinning diferentiation, less than this may be defined in your skin. Also, setting the header size to something greater then the supported value will style the header the same as the largest supported value. Please see the Skinning Selectors documentation for the assigned skinning keys used by the component.
styleClass	String	Yes	a CSS style class to use for this component. The style class can be defined in your jspx page or in a skinning CSS file, for example, or you can use one of our public style classes, like 'AFInstructionText'.
text	String	Yes	the label of the header.
type	String	Yes	Valid Values: default, flow, stretch how the component will handle geometry management. Options are: default - either flow or stretch, depending on the container the panelBox is inside flow - does not support being stretched and will not attempt to stretch the children; the height of the component will be determined by the browser based on the children stretch - supports being stretched and will attempt to stretch the sole child or will wrap the children without stretching them; the height of this component is in no way determined by the children
unsecure	java.util.Set	Yes	A whitespace separated list of attributes whose values ordinarily can be set only on the server, but need to be settable on the client. Currently, this is supported only for the "disabled" attribute.
visible	boolean	Yes	the visibility of the component. If it is "false", the component will be hidden on the client. Unlike "rendered", this does not affect the lifecycle on the server - the component may have its bindings executed, etc. - and the visibility of the component can be toggled on and off on the client, or toggled with PPR. When "rendered" is false, the component will not in any way be rendered, and cannot be made visible on the client. In most cases, use the "rendered" property instead of the "visible" property. Not supported on the following renderkits: org.apache.myfaces.trinidad.core

Name

Type

Supports EL?

Description

attributeChangeListener

javax.el.MethodExpression

Only EL

a method reference to an attribute change listener. Attribute change events are not delivered for any programmatic change to a property. They are only delivered when a renderer changes a property without the application's specific request. An example of an attribute change events might include the width of a column that supported client-side resizing.

binding

oracle.adf.view.rich.component.rich.layout.RichShowDetailHeader

Only EL

an EL reference that will store the component instance on a bean. This can be used to give programmatic access to a component from a backing bean, or to move creation of the component to a backing bean.

clientComponent

boolean

Yes

whether a client-side component will be generated. A component may be generated whether or not this flag is set, but if client Javascript requires the component object, this must be set to true to guarantee the component's presence. Client component objects that are generated today by default may not be present in the future; setting this flag is the only way to guarantee a component's presence, and clients cannot rely on implicit behavior. However, there is a performance cost to setting this flag, so clients should avoid turning on client components unless absolutely necessary.

contentDelivery

String

Yes

Valid Values: immediate, lazyUncached

whether the undisclosed content is delivered with the initial page. When contentDelivery is "immediate", the content is inlined into the initial page. If contentDelivery is "lazy", the content will be delivered to the client only after the first request to disclose the component. If contentDelivery is "lazyUncached", the content will be delivered each and every time the component's disclosure changes. By default, contentDelivery is lazyUncached.

contentStyle

String

Yes

the inline style of the content region.

customizationId

String

Yes

This attribute is deprecated. The 'id' attribute should be used when applying persistent customizations. This attribute will be removed in the next release.

disclosed

boolean

Yes

whether or not to disclose the children

disclosedTransient

boolean

Yes

stops the local value of disclosed from being set by renderers. This allows the value to always be taken from the value of the disclosed value expression. Disclosed values must be updated in other ways (i.e. from a disclosure listener)

disclosureListener

javax.el.MethodExpression

Only EL

a method reference to a disclosure listener

dontPersist

String[]

Yes

a list of attributes whose changes are NOT to be persisted by FilteredPersistenceChangeManager via the "Persistent Change Manager" registered in adf-config.xml. The token 'ALL' can be used in the list here to indicate that all attribute changes that the component implicitly persists should be excluded. If there is a conflict of values, "dontPersist" always precedes "persist".

headerLevel

int

Yes

allows the default HTML header level assignment (H1 through H6) of the header to be overridden.

Header components are assigned HTML header level assignements of H1 through H6. (Similar to size) the header level assigned is determined based on containment within other header components. For example, a header that is not contained by another header component will automatically render as an H1 header level. A child header contained inside this header would automatically render as an H2 header level. While the display of header components is determined by the size skinning selector assigned, HTML header level is important for correct page structure, especially when used with screen reader applications.

The headerLevel attribute by default is -1, where the HTML header level is then calculated by containment as defined above. This is the preferred setting - it is recommended that you design your page nesting header components to take advantage of the automatically assigned header levels. Alternately, setting the headerLevel attribute to values 1 through 6 will force the corresponding HTML header level to render as part of the header component, regardless of its containment with other header components on the page.

Plesae be careful if overriding the header level! The HTML header level assignments (H1 through H6) controlled by this attribute are relied upon by screen reader applications to appropriately identify the underlying structure of the page. Make sure your use of header components and assignment of header levels make sense for your page. When using an override value, consider the effects of having headers inside disclosable sections of the page.

helpTopicId

String

Yes

the id used to look up a topic in a helpProvider.

helpType

String

Yes

Valid Values: inline, link

Along with the help facet this is deprecated, helpTopicId should be used for providing help. Controls if the help is displayed inline or as a link to a popup.

icon

String

Yes

the URI of an image to be displayed in the header. This attribute supports these various types of URIs:

absolute - an absolute path to the image, like "http://oracleimg.com/admin/images/ocom/hp/oralogo_small.gif"
relative - a path located relatively to the source page, like "bullet.jpg"
context relative - a path relatively based on the web application's context root, like "/images/error.png"
server relative - a path relatively based on the web server by application name, like "//adf-richclient-demo-context-root/images/error.png"

As icon does not allow alternative text to be provided for the image, in order to create an accessible product icon must only be used when its use is purely decorative.

String

the identifier for the component. The identifier must follow a subset of the syntax allowed in HTML:

Must not be a zero-length String.
First character must be an ASCII letter (A-Za-z) or an underscore ('_').
Subsequent characters must be an ASCII letter or digit (A-Za-z0-9), an underscore ('_'), or a dash ('-').

immediate

boolean

Yes

whether data validation - client-side or server-side - should be skipped when events are generated by this component. When immediate is false (the default), the disclosure event will be delivered during the Invoke Application phase, which will trigger validation. When set to true, the disclosure event will be executed during the Apply Request Values phase.

inlineStyle

String

Yes

the CSS styles to use for this component. This is intended for basic style changes. The inlineStyle is a set of CSS styles that are applied to the root DOM element of the component. If the inlineStyle's CSS properties do not affect the DOM element you want affected, then you will have to create a skin and use the skinning keys which are meant to target particular DOM elements, like ::label or ::icon-style.

maximizeListener

javax.el.MethodExpression

Only EL

a method reference to a maximize listener

maximized

boolean

Yes

whether the children are currently maximized

messageType

String

Yes

Valid Values: info, confirmation, warning, none, error

whether an error, info, confirmation, or warning header is needed.

partialTriggers

String[]

Yes

the IDs of the components that should trigger a partial update. This component will listen on the trigger components. If one of the trigger components receives an event that will cause it to update in some way, this component will request to be updated too. Identifiers are relative to the source component (this component), and must account for NamingContainers. If your component is already inside of a naming container, you can use a single colon to start the search from the root of the page, or multiple colons to move up through the NamingContainers - "::" will pop out of the component's naming container (or itself if the component is a naming container) and begin the search from there, ":::" will pop out of two naming containers (including itself if the component is a naming container) and begin the search from there, etc.

persist

String[]

Yes

a list of attributes whose changes are to be persisted by FilteredPersistenceChangeManager via the "Persistent Change Manager" registered in adf-config.xml. The token 'ALL' can be used in the list here to indicate that all attribute changes that the component implicitly persists should be included.

rendered

boolean

Yes

whether the component is rendered. When set to false, no output will be delivered for this component (the component will not in any way be rendered, and cannot be made visible on the client). If you want to change a component's rendered attribute from false to true using PPR, set the partialTrigger attribute of its parent component so the parent refreshes and in turn will render this component.

shortDesc

String

Yes

the short description of the component. This text is commonly used by user agents to display tooltip help text, in which case the behavior for the tooltip is controlled by the user agent, e.g. Firefox 2 truncates long tooltips. For form components, the shortDesc is displayed in a note window. For components that support the helpTopicId attribute it is recommended that helpTopicId is used as it is more flexible and is more accessibility-compliant.

showMaximize

String

Yes

Valid Values: never, auto, always

Whether to display the maximize control to allow this component to be maximized. The default value, auto, allows the framework to determine whether the maximize control should be displayed beased on a number of factors, including the platform that the component is being displayed on.

size

int

Yes

allows the default skinning size of the header to be overridden.

Sizes for skinning start at size 0 (the largest) and progress to size 5 (the smallest). The size is determined based on containment within other header components, and is accomplished via the assignement of skinning keys. For example, a header that is not contained by another header component will automatically be displayed as size 0. A child header contained inside this header would automatically be displayed as size 1.

The size attribute by default is -1, where the size is then calculated by containment as defined above. This is the preferred setting - it is recommended that you design your page nesting header components to take advantage of the automatically assigned sizes. Alternately, setting the size attribute to values 0 through 5 will force that size skinning value assignment on the header component, regardless of its containment with other header components on the page.

Please note that while header components support a total of six levels of skinning diferentiation, less than this may be defined in your skin. Also, setting the header size to something greater then the supported value will style the header the same as the largest supported value. Please see the Skinning Selectors documentation for the assigned skinning keys used by the component.

styleClass

String

Yes

a CSS style class to use for this component. The style class can be defined in your jspx page or in a skinning CSS file, for example, or you can use one of our public style classes, like 'AFInstructionText'.

text

String

Yes

the label of the header.

type

String

Yes

Valid Values: default, flow, stretch

how the component will handle geometry management. Options are:

default - either flow or stretch, depending on the container the panelBox is inside
flow - does not support being stretched and will not attempt to stretch the children; the height of the component will be determined by the browser based on the children
stretch - supports being stretched and will attempt to stretch the sole child or will wrap the children without stretching them; the height of this component is in no way determined by the children

unsecure

java.util.Set

Yes

A whitespace separated list of attributes whose values ordinarily can be set only on the server, but need to be settable on the client. Currently, this is supported only for the "disabled" attribute.

visible

boolean

Yes

the visibility of the component. If it is "false", the component will be hidden on the client. Unlike "rendered", this does not affect the lifecycle on the server - the component may have its bindings executed, etc. - and the visibility of the component can be toggled on and off on the client, or toggled with PPR. When "rendered" is false, the component will not in any way be rendered, and cannot be made visible on the client. In most cases, use the "rendered" property instead of the "visible" property.
Not supported on the following renderkits: org.apache.myfaces.trinidad.core