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Class TRequiredFieldValidator

TRequiredFieldValidator class

TRequiredFieldValidator makes the associated input control a required field. The input control fails validation if its value does not change from the setInitialValue InitialValue property upon losing focus.

Validation will also succeed if input is of TListControl type and the number of selected values different from the initial value is greater than zero.

If the input is of TListControl type and has a TListControl::setPromptValue PromptValue set, it will be automatically considered as the validator's setInitialValue InitialValue.

TComponent
Extended by TApplicationComponent
Extended by TControl implements IRenderable, IBindable
Extended by TWebControl implements IStyleable
Extended by TLabel implements IDataRenderer
Extended by TBaseValidator implements IValidator
Extended by TRequiredFieldValidator
Package: System\Web\UI\WebControls
Copyright: Copyright © 2005-2014 PradoSoft
License: http://www.pradosoft.com/license/
Author: Qiang Xue <qiang.xue@gmail.com>
Since: 3.0
Located at Web/UI/WebControls/TRequiredFieldValidator.php
Methods summary
protected string
# getClientClassName( )

Gets the name of the javascript class responsible for performing validation for this control. This method overrides the parent implementation.

Gets the name of the javascript class responsible for performing validation for this control. This method overrides the parent implementation.

Returns

string
the javascript class name
public string
# getInitialValue( )

Returns

string
the initial value of the associated input control. Defaults to empty string unless the control has a prompt value set. If the associated input control does not change from this initial value upon postback, the validation fails.
protected string
# getControlPromptValue( )

Returns

string
the initial value of the associated input control. Defaults to empty string. If the associated input control does not change from this initial value upon postback, the validation fails.
public
# setInitialValue( string $value )

Parameters

$value
string
the initial value of the associated input control. If the associated input control does not change from this initial value upon postback, the validation fails.
protected boolean
# evaluateIsValid( )

This method overrides the parent's implementation. The validation succeeds if the input component changes its data from the getInitialValue InitialValue or the input control is not given.

This method overrides the parent's implementation. The validation succeeds if the input component changes its data from the getInitialValue InitialValue or the input control is not given.

Validation will also succeed if input is of TListControl type and the number of selected values different from the initial value is greater than zero.

Returns

boolean
whether the validation succeeds
protected array
# getClientScriptOptions( )

Returns an array of javascript validator options.

Returns an array of javascript validator options.

Returns

array
javascript validator options.

Overrides

TBaseValidator::getClientScriptOptions()
Methods inherited from TBaseValidator
__construct(), addAttributesToRender(), createClientSide(), getClientSide(), getControlCssClass(), getControlToValidate(), getDisplay(), getEnableClientScript(), getErrorMessage(), getFocusElementID(), getFocusOnError(), getIsValid(), getValidationGroup(), getValidationTarget(), getValidationValue(), onInit(), onPreRender(), onUnload(), onValidate(), onValidationError(), onValidationSuccess(), registerClientScriptValidator(), renderClientControlScript(), renderContents(), setControlCssClass(), setControlToValidate(), setDisplay(), setEnableClientScript(), setEnabled(), setErrorMessage(), setFocusElementID(), setFocusOnError(), setForControl(), setIsValid(), setValidationGroup(), updateControlCssClass(), validate()
Methods inherited from TLabel
getData(), getForControl(), getTagName(), getText(), render(), setData(), setText()
Methods inherited from TWebControl
clearStyle(), copyBaseAttributes(), createStyle(), getAccessKey(), getBackColor(), getBorderColor(), getBorderStyle(), getBorderWidth(), getCssClass(), getDecorator(), getEnsureId(), getFont(), getForeColor(), getHasStyle(), getHeight(), getStyle(), getTabIndex(), getToolTip(), getWidth(), renderBeginTag(), renderEndTag(), setAccessKey(), setBackColor(), setBorderColor(), setBorderStyle(), setBorderWidth(), setCssClass(), setEnsureId(), setForeColor(), setHeight(), setStyle(), setTabIndex(), setToolTip(), setWidth()
Methods inherited from TControl
__get(), addParsedObject(), addToPostDataLoader(), addedControl(), applyStyleSheetSkin(), autoBindProperty(), autoDataBindProperties(), bindProperty(), broadcastEvent(), bubbleEvent(), clearChildState(), clearControlState(), clearNamingContainer(), clearViewState(), convertUniqueIdToClientId(), createChildControls(), createControlCollection(), dataBind(), 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(), loadState(), loadStateRecursive(), onDataBinding(), onLoad(), preRenderRecursive(), raiseBubbleEvent(), registerObject(), removeAttribute(), removedControl(), renderChildren(), renderControl(), saveState(), saveStateRecursive(), setAdapter(), setAttribute(), setChildControlsCreated(), setControlStage(), setControlState(), setCustomData(), setEnableTheming(), setEnableViewState(), setID(), setPage(), setSkinID(), setTemplateControl(), setViewState(), setVisible(), trackViewState(), traverseChildControls(), unbindProperty(), unloadRecursive(), unregisterObject()
Methods inherited from TApplicationComponent
getApplication(), getRequest(), getResponse(), getService(), getSession(), getUser(), publishAsset(), publishFilePath()
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()
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
Constants inherited from TComponent
GLOBAL_RAISE_EVENT_LISTENER
Properties inherited from TWebControl
$_decorator
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