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Class TActiveDropDownList
TActiveDropDownList class.
The active control counter part to drop down list control. The setAutoPostBack AutoPostBack property is set to true by default. Thus, when the
drop down list selection is changed the onCallback OnCallback event is
raised after OnSelectedIndexChanged event.
With TBaseActiveControl::setEnableUpdate() ActiveControl.EnableUpdate
set to true (default is true), changes to the selection, after OnLoad
event has been raised, will be updated. on the client side.
List items can be changed dynamically during a callback request.
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TComponent
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TApplicationComponent
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TControl
implements
IRenderable,
IBindable
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TWebControl
implements
IStyleable
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TDataBoundControl
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TListControl
implements
IDataRenderer
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TDropDownList
implements
IPostBackDataHandler,
IValidatable
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TActiveDropDownList
implements
ICallbackEventHandler,
IActiveControl
Methods summary
public
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__construct( )
Creates a new callback control, sets the adapter to
TActiveListControlAdapter. If you override this class, be sure to set the
adapter appropriately by, for example, by calling this constructor.
Creates a new callback control, sets the adapter to
TActiveListControlAdapter. If you override this class, be sure to set the
adapter appropriately by, for example, by calling this constructor.
Overrides
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public
TBaseActiveCallbackControl
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getActiveControl( )
Returns
Implementation of
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public
TCallbackClientSide
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protected
null
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getClientClassName( )
No client class for this control. This method overrides the parent
implementation.
No client class for this control. This method overrides the parent
implementation.
Returns
null no javascript class name.
Overrides
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protected
TActiveListItemCollection
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createListItemCollection( )
Creates a collection object to hold list items. A specialized
TActiveListItemCollection is created to allow the drop down list options to be
added. This method may be overriden to create a customized collection.
Creates a collection object to hold list items. A specialized
TActiveListItemCollection is created to allow the drop down list options to be
added. This method may be overriden to create a customized collection.
Returns
Overrides
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protected
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#
renderClientControlScript( mixed $writer )
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protected
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addAttributesToRender( THtmlWriter $writer )
Ensure that the ID attribute is rendered and registers the javascript code
for initializing the active control.
Ensure that the ID attribute is rendered and registers the javascript code
for initializing the active control.
Parameters
Overrides
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public
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#
raiseCallbackEvent( TCallbackEventParameter $param )
Raises the callback event. This method is required by ICallbackEventHandler interface. This method is mainly used by framework and
control developers.
Raises the callback event. This method is required by ICallbackEventHandler interface. This method is mainly used by framework and
control developers.
Parameters
Implementation of
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public
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#
onCallback( TCallbackEventParameter $param )
This method is invoked when a callback is requested. The method raises
'OnCallback' event to fire up the event handlers. If you override this method,
be sure to call the parent implementation so that the event handler can be
invoked.
This method is invoked when a callback is requested. The method raises
'OnCallback' event to fire up the event handlers. If you override this method,
be sure to call the parent implementation so that the event handler can be
invoked.
Parameters
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public
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#
onPreRender( TEventParameter $param )
Updates the client-side options if the item list has changed after the OnLoad
event.
Updates the client-side options if the item list has changed after the OnLoad
event.
Parameters
Overrides
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Methods inherited from TListControl
addParsedObject(),
clearSelection(),
formatDataValue(),
getAppendDataBoundItems(),
getAutoPostBack(),
getCausesValidation(),
getData(),
getDataGroupField(),
getDataTextField(),
getDataTextFormatString(),
getDataValueField(),
getEnableClientScript(),
getHasItems(),
getIsMultiSelect(),
getItemCount(),
getItems(),
getPostBackOptions(),
getPromptText(),
getPromptValue(),
getSelectedIndex(),
getSelectedIndices(),
getSelectedItem(),
getSelectedValue(),
getSelectedValues(),
getTagName(),
getText(),
getValidationGroup(),
loadState(),
onSelectedIndexChanged(),
onTextChanged(),
performDataBinding(),
renderContents(),
renderPrompt(),
saveState(),
setAppendDataBoundItems(),
setAutoPostBack(),
setCausesValidation(),
setData(),
setDataGroupField(),
setDataTextField(),
setDataTextFormatString(),
setDataValueField(),
setEnableClientScript(),
setPromptText(),
setPromptValue(),
setSelectedIndex(),
setSelectedValue(),
setSelectedValues(),
setText(),
setValidationGroup()
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Methods inherited from TDataBoundControl
createPagedDataSource(),
dataBind(),
dataSourceViewChanged(),
determineDataSource(),
ensureDataBound(),
getAllowCustomPaging(),
getAllowPaging(),
getCurrentPageIndex(),
getDataMember(),
getDataSource(),
getDataSourceID(),
getDataSourceView(),
getInitialized(),
getIsDataBound(),
getPageCount(),
getPageSize(),
getRequiresDataBinding(),
getSelectParameters(),
getUsingDataSourceID(),
getVirtualItemCount(),
onDataBound(),
onDataSourceChanged(),
onInit(),
pagePreLoad(),
setAllowCustomPaging(),
setAllowPaging(),
setCurrentPageIndex(),
setDataMember(),
setDataSource(),
setDataSourceID(),
setInitialized(),
setIsDataBound(),
setPageSize(),
setRequiresDataBinding(),
setVirtualItemCount(),
validateDataSource()
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Methods inherited from TWebControl
clearStyle(),
copyBaseAttributes(),
createStyle(),
getAccessKey(),
getBackColor(),
getBorderColor(),
getBorderStyle(),
getBorderWidth(),
getCssClass(),
getDecorator(),
getDisplay(),
getEnsureId(),
getFont(),
getForeColor(),
getHasStyle(),
getHeight(),
getStyle(),
getTabIndex(),
getToolTip(),
getWidth(),
render(),
renderBeginTag(),
renderEndTag(),
setAccessKey(),
setBackColor(),
setBorderColor(),
setBorderStyle(),
setBorderWidth(),
setCssClass(),
setDisplay(),
setEnsureId(),
setForeColor(),
setHeight(),
setStyle(),
setTabIndex(),
setToolTip(),
setWidth()
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Methods inherited from TControl
__get(),
addToPostDataLoader(),
addedControl(),
applyStyleSheetSkin(),
autoBindProperty(),
autoDataBindProperties(),
bindProperty(),
broadcastEvent(),
bubbleEvent(),
clearChildState(),
clearControlState(),
clearNamingContainer(),
clearViewState(),
convertUniqueIdToClientId(),
createChildControls(),
createControlCollection(),
dataBindChildren(),
dataBindProperties(),
ensureChildControls(),
findControl(),
findControlsByID(),
findControlsByType(),
focus(),
getAdapter(),
getAllowChildControls(),
getAttribute(),
getAttributes(),
getChildControlsCreated(),
getClientID(),
getControlStage(),
getControlState(),
getControls(),
getCustomData(),
getEnableTheming(),
getEnableViewState(),
getEnabled(),
getHasAdapter(),
getHasAttributes(),
getHasChildInitialized(),
getHasControls(),
getHasInitialized(),
getHasLoaded(),
getHasLoadedPostData(),
getHasPreRendered(),
getID(),
getIsSkinApplied(),
getNamingContainer(),
getPage(),
getParent(),
getRegisteredObject(),
getSkinID(),
getSourceTemplateControl(),
getTemplateControl(),
getUniqueID(),
getViewState(),
getVisible(),
hasAttribute(),
initRecursive(),
isDescendentOf(),
isObjectRegistered(),
loadRecursive(),
loadStateRecursive(),
onDataBinding(),
onLoad(),
onUnload(),
preRenderRecursive(),
raiseBubbleEvent(),
registerObject(),
removeAttribute(),
removedControl(),
renderChildren(),
renderControl(),
saveStateRecursive(),
setAdapter(),
setAttribute(),
setChildControlsCreated(),
setControlStage(),
setControlState(),
setCustomData(),
setEnableTheming(),
setEnableViewState(),
setEnabled(),
setID(),
setPage(),
setSkinID(),
setTemplateControl(),
setViewState(),
setVisible(),
trackViewState(),
traverseChildControls(),
unbindProperty(),
unloadRecursive(),
unregisterObject()
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Methods inherited from TComponent
__call(),
__destruct(),
__isset(),
__set(),
__sleep(),
__unset(),
__wakeup(),
asa(),
attachBehavior(),
attachBehaviors(),
attachClassBehavior(),
attachEventHandler(),
canGetProperty(),
canSetProperty(),
clearBehaviors(),
createdOnTemplate(),
detachBehavior(),
detachBehaviors(),
detachClassBehavior(),
detachEventHandler(),
disableBehavior(),
disableBehaviors(),
enableBehavior(),
enableBehaviors(),
evaluateExpression(),
evaluateStatements(),
fxAttachClassBehavior(),
fxDetachClassBehavior(),
getAutoGlobalListen(),
getBehaviorsEnabled(),
getClassHierarchy(),
getEventHandlers(),
getListeningToGlobalEvents(),
getSubProperty(),
hasEvent(),
hasEventHandler(),
hasProperty(),
isa(),
listen(),
raiseEvent(),
setSubProperty(),
unlisten()
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Constants inherited from TControl
AUTOMATIC_ID_PREFIX,
CLIENT_ID_SEPARATOR,
CS_CHILD_INITIALIZED,
CS_CONSTRUCTED,
CS_INITIALIZED,
CS_LOADED,
CS_PRERENDERED,
CS_STATE_LOADED,
ID_FORMAT,
ID_SEPARATOR,
IS_CHILD_CREATED,
IS_CREATING_CHILD,
IS_DISABLE_THEMING,
IS_DISABLE_VIEWSTATE,
IS_ID_SET,
IS_SKIN_APPLIED,
IS_STYLESHEET_APPLIED,
RF_ADAPTER,
RF_AUTO_BINDINGS,
RF_CHILD_STATE,
RF_CONTROLS,
RF_CONTROLSTATE,
RF_DATA_BINDINGS,
RF_EVENTS,
RF_NAMED_CONTROLS,
RF_NAMED_CONTROLS_ID,
RF_NAMED_OBJECTS,
RF_SKIN_ID
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