Packages:
default
System
System.Caching
System.Collections
System.Data
System.Data.ActiveRecord
System.Data.ActiveRecord.Relations
System.Data.ActiveRecord.Scaffold
System.Data.ActiveReecord.Scaffold.InputBuilder
System.Data.Commom.Sqlite
System.Data.Common
System.Data.Common.Mssql
System.Data.Common.Mysql
System.Data.Common.Oracle
System.Data.Common.Pgsql
System.Data.Common.Sqlite
System.Data.DataGateway
System.Data.SqlMap
System.Data.SqlMap.Configuration
System.Data.SqlMap.Statements
System.Exceptions
System.I18N
System.IO
System.Security
System.Util
System.Web
System.Web.Services
System.Web.UI
System.Web.UI.ActiveControls
System.Web.UI.WebControls
System.Web.UI.WebControls.assets
System.Xml


Classes:
IDataSource
IItemDataRenderer
IRepeatInfoUser
TActiveFileUpload
TBaseDataList
TBaseValidator
TBoundColumn
TBulletedList
TBulletedListDisplayMode
TBulletedListEventParameter
TBulletStyle
TButton
TButtonColumn
TButtonColumnType
TButtonType
TCaptcha
TCaptchaValidator
TCheckBox
TCheckBoxColumn
TCheckBoxList
TCircleHotSpot
TClientScript
TClientScriptLoader
TClientSideValidationSummaryOptions
TColorPicker
TColorPickerClientSide
TColorPickerMode
TCompareValidator
TCompleteWizardStep
TConditional
TContent
TContentDirection
TContentPlaceHolder
TCustomValidator
TDataBoundControl
TDataGrid
TDataGridColumn
TDataGridColumnCollection
TDataGridCommandEventParameter
TDataGridItem
TDataGridItemCollection
TDataGridItemEventParameter
TDataGridItemRenderer
TDataGridPageChangedEventParameter
TDataGridPager
TDataGridPagerButtonType
TDataGridPagerEventParameter
TDataGridPagerMode
TDataGridPagerPosition
TDataGridPagerStyle
TDataGridSortCommandEventParameter
TDataList
TDataListCommandEventParameter
TDataListItem
TDataListItemCollection
TDataListItemEventParameter
TDataListItemRenderer
TDataRenderer
TDataSourceControl
TDataSourceSelectParameters
TDataSourceView
TDataTypeValidator
TDatePicker
TDatePickerClientScript
TDatePickerInputMode
TDatePickerMode
TDatePickerPositionMode
TDisplayStyle
TDraggable
TDropContainer
TDropDownList
TDropDownListColumn
TEditCommandColumn
TEmailAddressValidator
TExpression
TFileUpload
TFont
THiddenField
THorizontalAlign
THotSpot
THotSpotCollection
THotSpotMode
THtmlArea
THtmlElement
THyperLink
THyperLinkColumn
TImage
TImageButton
TImageClickEventParameter
TImageMap
TImageMapEventParameter
TInlineFrame
TInlineFrameAlign
TInlineFrameScrollBars
TItemDataRenderer
TJavascriptLogger
TKeyboard
TLabel
TLinkButton
TListBox
TListControl
TListControlValidator
TListItem
TListItemCollection
TListItemType
TListSelectionMode
TLiteral
TLiteralColumn
TMarkdown
TMetaTag
TMetaTagCollection
TMultiView
TOutputCache
TOutputCacheCalculateKeyEventParameter
TOutputCacheCheckDependencyEventParameter
TPager
TPagerButtonType
TPagerMode
TPagerPageChangedEventParameter
TPanel
TPanelStyle
TPlaceHolder
TPolygonHotSpot
TRadioButton
TRadioButtonList
TRangeValidationDataType
TRangeValidator
TRatingList
TReadOnlyDataSource
TReadOnlyDataSourceView
TRectangleHotSpot
TRegularExpressionValidator
TRepeatDirection
TRepeater
TRepeaterCommandEventParameter
TRepeaterItem
TRepeaterItemCollection
TRepeaterItemEventParameter
TRepeaterItemRenderer
TRepeatInfo
TRepeatLayout
TRequiredFieldValidator
TSafeHtml
TScrollBars
TServerValidateEventParameter
TSlider
TSliderClientScript
TSliderDirection
TStatements
TStyle
TStyleSheet
TTable
TTableCaptionAlign
TTableCell
TTableCellCollection
TTableFooterRow
TTableGridLines
TTableHeaderCell
TTableHeaderRow
TTableHeaderScope
TTableItemStyle
TTableRow
TTableRowCollection
TTableRowSection
TTableStyle
TTabPanel
TTabView
TTabViewCollection
TTemplateColumn
TTemplatedWizardStep
TTextAlign
TTextBox
TTextBoxAutoCompleteType
TTextBoxMode
TTextHighlighter
TTextHighlighterLineNumberStyle
TValidationCompareOperator
TValidationDataType
TValidationSummary
TValidationSummaryDisplayMode
TValidationSummaryDisplayStyle
TValidatorClientSide
TValidatorDisplayStyle
TVerticalAlign
TView
TViewCollection
TWebControl
TWebControlAdapter
TWizard
TWizardFinishNavigationTemplate
TWizardNavigationButtonStyle
TWizardNavigationButtonType
TWizardNavigationContainer
TWizardNavigationEventParameter
TWizardNavigationTemplate
TWizardSideBarListItemTemplate
TWizardSideBarTemplate
TWizardStartNavigationTemplate
TWizardStep
TWizardStepCollection
TWizardStepNavigationTemplate
TWizardStepType
TXmlTransform
Keyword

Class THiddenField

TComponent
   |
   --TApplicationComponent
      |
      --TControl
         |
         --THiddenField

Direct Known Sub-classes:

THiddenField class

THiddenField displays a hidden input field on a Web page. The value of the input field can be accessed via Value property. If upon postback the value is changed, a OnValueChanged event will be raised.

Since: 3.0
Author: Qiang Xue <qiang.xue@gmail.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,

Method Summary
void
focus ()
Sets focus to this control.
string
getData ()
Returns the value of the hidden field.
boolean
Returns a value indicating whether postback has caused the control data change.
boolean
bool
Returns true if this control validated successfully.
protected  string
mixed
Returns the value to be validated.
string
boolean
loadPostData ( string $key, array $values)
Loads hidden field data.
void
This method is invoked when the value of the getValue property changes between posts to the server.
void
Raises postdata changed event.
void
render ( THtmlWriter $writer)
Renders the control.
void
setData ( string $value)
Sets the value of the hidden field.
void
setEnableTheming ( boolean $value)
void
setIsValid ( bool $value)
void
setSkinID ( string $value)
void
setValue ( string $value)
Sets the value of the THiddenField
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

Method Details

focus

public void focus ()

Sets focus to this control.

This method overrides the parent implementation by forbidding setting focus to this control.

Output
Exception

getData

public string getData ()

Returns the value of the hidden field.

This method is required by IDataRenderer. It is the same as getValue().

Output
string value of the hidden field
Exception

getDataChanged

public boolean getDataChanged ()

Returns a value indicating whether postback has caused the control data change.

This method is required by the IPostBackDataHandler interface.

Output
boolean whether postback has caused the control data change. False if the page is not in postback mode.
Exception

getEnableTheming

public boolean getEnableTheming ()

Output
boolean whether theming is enabled for this control. Defaults to false.
Exception

getIsValid

public bool getIsValid ()

Returns true if this control validated successfully.

Defaults to true.

Output
bool wether this control validated successfully.
Exception

getTagName

protected string getTagName ()

Output
string tag name of the hidden field.
Exception

getValidationPropertyValue

public mixed getValidationPropertyValue ()

Returns the value to be validated.

This methid is required by IValidatable interface.

Output
mixed the value of the property to be validated.
Exception

getValue

public string getValue ()

Output
string the value of the THiddenField
Exception

loadPostData

public boolean loadPostData (string $key , array $values )

Loads hidden field data.

This method is primarly used by framework developers.

Input
string$keythe key that can be used to retrieve data from the input data collection
array$valuesthe input data collection
Output
boolean whether the data of the component has been changed
Exception

onValueChanged

public void onValueChanged (TEventParameter $param )

This method is invoked when the value of the getValue property changes between posts to the server.

The method raises 'OnValueChanged' event to fire up the event delegates. If you override this method, be sure to call the parent implementation so that the attached event handlers can be invoked.

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

raisePostDataChangedEvent

public void raisePostDataChangedEvent ()

Raises postdata changed event.

This method calls onValueChanged method. This method is primarly used by framework developers.

Output
Exception

render

public void render (THtmlWriter $writer )

Renders the control.

This method overrides the parent implementation by rendering the hidden field input element.

Input
THtmlWriter$writerthe writer used for the rendering purpose
Output
Exception

setData

public void setData (string $value )

Sets the value of the hidden field.

This method is required by IDataRenderer. It is the same as setValue().

Input
string$valuevalue of the hidden field
Output
Exception

setEnableTheming

public void setEnableTheming (boolean $value )

Input
boolean$valuewhether theming is enabled for this control.
Output
Exception
throwsTNotSupportedException This method is always thrown when calling this method.

setIsValid

public void setIsValid (bool $value )

Input
bool$valuewether this control is valid.
Output
Exception

setSkinID

public void setSkinID (string $value )

Input
string$valueSkin ID
Output
Exception
throwsTNotSupportedException This method is always thrown when calling this method.

setValue

public void setValue (string $value )

Sets the value of the THiddenField

Input
string$valuethe value to be set
Output
Exception