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System.Web.UI.ActiveControls
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Classes:
Keyword

Class TActiveImageButton

TComponent
   |
   --TApplicationComponent
      |
      --TControl
         |
         --TWebControl
            |
            --TImage
               |
               --TImageButton
                  |
                  --TActiveImageButton

TActiveImageButton class.

TActiveImageButton is the active control counter part to TLinkButton. When a TActiveImageButton is clicked, rather than a normal post back request a callback request is initiated.

The OnCallback event is raised during a callback request and it is raise after the OnClick event.

Since: 3.1
Author: Wei Zhuo <weizhuo[at]gmail[dot]com>
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,

Constructor Summary
public
Creates a new callback control, sets the adapter to TActiveControlAdapter. If you override this class, be sure to set the adapter appropriately by, for example, by calling this constructor.

Method Summary
protected  void
addAttributesToRender ( mixed $writer)
Ensure that the ID attribute is rendered and registers the javascript code for initializing the active control.
TBaseActiveControl
protected  string
TCallbackClientSide
void
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.
void
Register the x and y hidden input names of the position clicked.
void
Raises the callback event. This method is required by
protected  void
renderClientControlScript ( mixed $writer)
Override parent implementation, no javascript is rendered here instead the javascript required for active control is registered in addAttributesToRender.
void
setAlternateText ( string $value)
Sets the alternative text to be displayed in the TImage when the image is unavailable.
void
setDescriptionUrl ( string $value)
void
setImageAlign ( string $value)
Sets the alignment of the image with respective to other elements on the page.
void
setImageUrl ( string $value)
Methods Inherited From TImageButton
TImageButton::addAttributesToRender(), TImageButton::canCauseValidation(), TImageButton::getCausesValidation(), TImageButton::getClientClassName(), TImageButton::getCommandName(), TImageButton::getCommandParameter(), TImageButton::getDataChanged(), TImageButton::getEnableClientScript(), TImageButton::getIsDefaultButton(), TImageButton::getPostBackOptions(), TImageButton::getTagName(), TImageButton::getText(), TImageButton::getValidationGroup(), TImageButton::loadPostData(), TImageButton::needPostBackScript(), TImageButton::onClick(), TImageButton::onCommand(), TImageButton::onPreRender(), TImageButton::raisePostBackEvent(), TImageButton::raisePostDataChangedEvent(), TImageButton::renderClientControlScript(), TImageButton::renderContents(), TImageButton::setCausesValidation(), TImageButton::setCommandName(), TImageButton::setCommandParameter(), TImageButton::setEnableClientScript(), TImageButton::setIsDefaultButton(), TImageButton::setText(), TImageButton::setValidationGroup()
Methods Inherited From TImage
TImage::addAttributesToRender(), TImage::getAlternateText(), TImage::getData(), TImage::getDescriptionUrl(), TImage::getImageAlign(), TImage::getImageUrl(), TImage::getTagName(), TImage::renderContents(), TImage::setAlternateText(), TImage::setData(), TImage::setDescriptionUrl(), TImage::setImageAlign(), TImage::setImageUrl()
Methods Inherited From TWebControl
TWebControl::addAttributesToRender(), TWebControl::clearStyle(), TWebControl::copyBaseAttributes(), TWebControl::createStyle(), TWebControl::getAccessKey(), TWebControl::getBackColor(), TWebControl::getBorderColor(), TWebControl::getBorderStyle(), TWebControl::getBorderWidth(), TWebControl::getCssClass(), TWebControl::getDisplay(), TWebControl::getFont(), TWebControl::getForeColor(), TWebControl::getHasStyle(), TWebControl::getHeight(), TWebControl::getStyle(), TWebControl::getTabIndex(), TWebControl::getTagName(), TWebControl::getToolTip(), TWebControl::getWidth(), TWebControl::render(), TWebControl::renderBeginTag(), TWebControl::renderContents(), TWebControl::renderEndTag(), TWebControl::setAccessKey(), TWebControl::setBackColor(), TWebControl::setBorderColor(), TWebControl::setBorderStyle(), TWebControl::setBorderWidth(), TWebControl::setCssClass(), TWebControl::setDisplay(), TWebControl::setForeColor(), TWebControl::setHeight(), TWebControl::setStyle(), TWebControl::setTabIndex(), TWebControl::setToolTip(), TWebControl::setWidth()
Methods Inherited From TControl
TControl::addedControl(), TControl::addParsedObject(), TControl::addToPostDataLoader(), TControl::applyStyleSheetSkin(), TControl::autoBindProperty(), TControl::autoDataBindProperties(), TControl::bindProperty(), TControl::broadcastEvent(), TControl::bubbleEvent(), TControl::clearChildState(), TControl::clearControlState(), TControl::clearNamingContainer(), TControl::clearViewState(), TControl::convertUniqueIdToClientId(), TControl::createChildControls(), TControl::createControlCollection(), TControl::dataBind(), TControl::dataBindChildren(), TControl::dataBindProperties(), TControl::ensureChildControls(), TControl::findControl(), TControl::findControlsByID(), TControl::findControlsByType(), TControl::focus(), TControl::getAdapter(), TControl::getAllowChildControls(), TControl::getAttribute(), TControl::getAttributes(), TControl::getChildControlsCreated(), TControl::getClientID(), TControl::getControls(), TControl::getControlStage(), TControl::getControlState(), TControl::getCustomData(), TControl::getEnabled(), TControl::getEnableTheming(), TControl::getEnableViewState(), TControl::getHasAdapter(), TControl::getHasAttributes(), TControl::getHasChildInitialized(), TControl::getHasControls(), TControl::getHasInitialized(), TControl::getHasLoaded(), TControl::getHasLoadedPostData(), TControl::getHasPreRendered(), TControl::getID(), TControl::getNamingContainer(), TControl::getPage(), TControl::getParent(), TControl::getRegisteredObject(), TControl::getSkinID(), TControl::getSourceTemplateControl(), TControl::getTemplateControl(), TControl::getUniqueID(), TControl::getViewState(), TControl::getVisible(), TControl::hasAttribute(), TControl::initRecursive(), TControl::isDescendentOf(), TControl::isObjectRegistered(), TControl::loadRecursive(), TControl::loadState(), TControl::loadStateRecursive(), TControl::onDataBinding(), TControl::onInit(), TControl::onLoad(), TControl::onPreRender(), TControl::onUnload(), TControl::preRenderRecursive(), TControl::raiseBubbleEvent(), TControl::registerObject(), TControl::removeAttribute(), TControl::removedControl(), TControl::render(), TControl::renderChildren(), TControl::renderControl(), TControl::saveState(), TControl::saveStateRecursive(), TControl::setAdapter(), TControl::setAttribute(), TControl::setChildControlsCreated(), TControl::setControlStage(), TControl::setControlState(), TControl::setCustomData(), TControl::setEnabled(), TControl::setEnableTheming(), TControl::setEnableViewState(), TControl::setID(), TControl::setPage(), TControl::setSkinID(), TControl::setTemplateControl(), TControl::setViewState(), TControl::setVisible(), TControl::trackViewState(), TControl::traverseChildControls(), TControl::unbindProperty(), TControl::unloadRecursive(), TControl::unregisterObject(), TControl::__get()
Methods Inherited From TApplicationComponent
TApplicationComponent::getApplication(), TApplicationComponent::getRequest(), TApplicationComponent::getResponse(), TApplicationComponent::getService(), TApplicationComponent::getSession(), TApplicationComponent::getUser(), TApplicationComponent::publishAsset(), TApplicationComponent::publishFilePath()
Methods Inherited From TComponent
TComponent::addParsedObject(), TComponent::attachEventHandler(), TComponent::canGetProperty(), TComponent::canSetProperty(), TComponent::createdOnTemplate(), TComponent::detachEventHandler(), TComponent::evaluateExpression(), TComponent::evaluateStatements(), TComponent::getEventHandlers(), TComponent::getSubProperty(), TComponent::hasEvent(), TComponent::hasEventHandler(), TComponent::hasProperty(), TComponent::raiseEvent(), TComponent::setSubProperty(), TComponent::__get(), TComponent::__set()

Constant Summary

Constructor Details

__construct

public __construct

Creates a new callback control, sets the adapter to TActiveControlAdapter. If you override this class, be sure to set the adapter appropriately by, for example, by calling this constructor.


Method Details

addAttributesToRender

protected void addAttributesToRender (mixed $writer )

Ensure that the ID attribute is rendered and registers the javascript code for initializing the active control.

Input
mixed$writer
Output
Exception

getActiveControl

public TBaseActiveControl getActiveControl ()

Output
TBaseActiveControl basic active control options.
Exception

getClientClassName

protected string getClientClassName ()

Output
string corresponding javascript class name for this TActiveLinkButton.
Exception

getClientSide

public TCallbackClientSide getClientSide ()

Output
TCallbackClientSide client side request options.
Exception

onCallback

public void 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.

Input
TCallbackEventParameter$paramevent parameter to be passed to the event handlers
Output
Exception

onPreRender

public void onPreRender (THtmlWriter $writer )

Register the x and y hidden input names of the position clicked.

Input
THtmlWriter$writerthe renderer.
Output
Exception

raiseCallbackEvent

public void raiseCallbackEvent (TCallbackEventParameter $param )

Raises the callback event. This method is required by

ICallbackEventHandler} interface. If CausesValidation is true, it will invoke the page's TPage:: method first. It will raise OnClick event first and then the OnCallback event. This method is mainly used by framework and control developers.

Input
TCallbackEventParameter$paramthe event parameter
Output
Exception

renderClientControlScript

protected void renderClientControlScript (mixed $writer )

Override parent implementation, no javascript is rendered here instead the javascript required for active control is registered in addAttributesToRender.

Input
mixed$writer
Output
Exception

setAlternateText

public void setAlternateText (string $value )

Sets the alternative text to be displayed in the TImage when the image is unavailable.

Input
string$valuethe alternative text
Output
Exception

setDescriptionUrl

public void setDescriptionUrl (string $value )

Input
string$valuethe URL to the long description of the image.
Output
Exception

setImageAlign

public void setImageAlign (string $value )

Sets the alignment of the image with respective to other elements on the page.

Possible values include: absbottom, absmiddle, baseline, bottom, left, middle, right, texttop, and top. If an empty string is passed in, imagealign attribute will not be rendered.

Input
string$valuethe alignment of the image
Output
Exception

setImageUrl

public void setImageUrl (string $value )

Input
string$valuethe URL of the image file
Output
Exception