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

Class TDropDownListColumn

TComponent
   |
   --TApplicationComponent
      |
      --TDataGridColumn
         |
         --TDropDownListColumn

TDropDownListColumn class

TDropDownListColumn represents a column that is bound to a field in a data source. The cells in the column will be displayed using the data indexed by DataTextField. You can customize the display by setting DataTextFormatString.

If ReadOnly is false, TDropDownListColumn will display cells in edit mode with dropdown lists. Otherwise, a static text is displayed. The currently selected dropndown list item is specified by the data indexed with DataValueField.

There are two approaches to specify the list items available for selection. The first approach uses template syntax as follows,

   <com:TDropDownListColumn ....>
     <com:TListItem Value="1" Text="first item" />
     <com:TListItem Value="2" Text="second item" />
     <com:TListItem Value="3" Text="third item" />
   </com:TDropDownListColumn>

The second approach specifies a data source to be bound to the dropdown lists by setting ListDataSource. Like generic list controls, you may also want to specify which data fields are used for item values and texts by setting ListValueField and ListTextField, respectively. Furthermore, the item texts may be formatted by using ListTextFormatString. Note, if you specify ListDataSource, do it before calling the datagrid's dataBind().

The dropdown list control in the TDropDownListColumn can be accessed by one of the following two methods:

 $datagridItem->DropDownListColumnID->DropDownList
 $datagridItem->DropDownListColumnID->Controls[0]

The second method is possible because the dropdown list control created within the datagrid cell is the first child.

Constructor Summary
public	__construct

Method Summary
void	addParsedObject ( mixed $object) Adds object parsed from template to the control.
void	dataBindColumn ( mixed $sender, mixed $param) Databinds a cell in the column.
string	getDataTextField ()
string	getDataTextFormatString ()
string	getDataValueField ()
Traversable	getListDataSource ()
string	getListTextField ()
string	getListTextFormatString ()
string	getListValueField ()
boolean	getReadOnly ()
void	initializeCell ( TTableCell $cell, integer $columnIndex, string $itemType) Initializes the specified cell to its initial values.
void	loadState ( mixed $state) Loads items from viewstate.
void	saveState () Saves items into viewstate.
void	setDataTextField ( string $value) Sets the field of the data source that provides the text content of the column.
void	setDataTextFormatString ( string $value)
void	setDataValueField ( string $value) Sets the field of the data source that provides the key selecting an item in dropdown list.
void	setListDataSource ( Traversable\|array\|string $value)
void	setListTextField ( string $value)
void	setListTextFormatString ( string $value)
void	setListValueField ( string $value)
void	setReadOnly ( boolean $value)

Methods Inherited From TDataGridColumn

TDataGridColumn::formatDataValue(), TDataGridColumn::getAllowSorting(), TDataGridColumn::getDataFieldValue(), TDataGridColumn::getEnableCellGrouping(), TDataGridColumn::getFooterRenderer(), TDataGridColumn::getFooterStyle(), TDataGridColumn::getFooterText(), TDataGridColumn::getHeaderImageUrl(), TDataGridColumn::getHeaderRenderer(), TDataGridColumn::getHeaderStyle(), TDataGridColumn::getHeaderText(), TDataGridColumn::getID(), TDataGridColumn::getItemStyle(), TDataGridColumn::getOwner(), TDataGridColumn::getSortExpression(), TDataGridColumn::getViewState(), TDataGridColumn::getVisible(), TDataGridColumn::initialize(), TDataGridColumn::initializeCell(), TDataGridColumn::initializeFooterCell(), TDataGridColumn::initializeHeaderCell(), TDataGridColumn::loadState(), TDataGridColumn::saveState(), TDataGridColumn::setEnableCellGrouping(), TDataGridColumn::setFooterRenderer(), TDataGridColumn::setFooterText(), TDataGridColumn::setHeaderImageUrl(), TDataGridColumn::setHeaderRenderer(), TDataGridColumn::setHeaderText(), TDataGridColumn::setID(), TDataGridColumn::setOwner(), TDataGridColumn::setSortExpression(), TDataGridColumn::setViewState(), TDataGridColumn::setVisible()

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()

Constructor Details

__construct

public __construct

Method Details

addParsedObject

public void addParsedObject

(mixed $object )

Adds object parsed from template to the control.

This method adds only TListItem objects into the getItems collection. All other objects are ignored.

Input
mixed	$object	object parsed from template
Output
Exception

dataBindColumn

public void dataBindColumn

(mixed $sender , mixed $param )

Databinds a cell in the column.

This method is invoked when datagrid performs databinding. It populates the content of the cell with the relevant data from data source.

Input
mixed	$sender
mixed	$param
Output
Exception

getDataTextField

public string getDataTextField

()

Output
string	the field of the data source that provides the text content of the column.
Exception

getDataTextFormatString

public string getDataTextFormatString

()

Output
string	the formatting string used to control how the bound data will be displayed.
Exception

getDataValueField

public string getDataValueField

()

Output
string	the field of the data source that provides the key selecting an item in dropdown list.
Exception

getListDataSource

public Traversable getListDataSource

()

Output
Traversable	data source to be bound to the dropdown list boxes.
Exception

getListTextField

public string getListTextField

()

Output
string	the data field used to populate the texts of the dropdown list items. Defaults to empty.
Exception

getListTextFormatString

public string getListTextFormatString

()

Output
string	the formatting string used to control how the list item texts will be displayed.
Exception

getListValueField

public string getListValueField

()

Output
string	the data field used to populate the values of the dropdown list items. Defaults to empty.
Exception

getReadOnly

public boolean getReadOnly

()

Output
boolean	whether the items in the column can be edited. Defaults to false.
Exception

initializeCell

public void initializeCell

(TTableCell $cell , integer $columnIndex , string $itemType )

Initializes the specified cell to its initial values.

This method overrides the parent implementation. It creates a textbox for item in edit mode and the column is not read-only. Otherwise it displays a static text. The caption of the button and the static text are retrieved from the datasource.

Input
TTableCell	$cell	the cell to be initialized.
integer	$columnIndex	the index to the Columns property that the cell resides in.
string	$itemType	the type of cell (Header,Footer,Item,AlternatingItem,EditItem,SelectedItem)
Output
Exception

loadState

public void loadState

(mixed $state )

Loads items from viewstate.

This method overrides the parent implementation by loading list items

Input
mixed	$state	state values
Output
Exception

saveState

public void saveState

()

Saves items into viewstate.

This method overrides the parent implementation by saving list items

setDataTextField

public void setDataTextField

(string $value )

Sets the field of the data source that provides the text content of the column.

If this is not set, the data specified via DataValueField will be displayed in the column.

Input
string	$value	the field of the data source that provides the text content of the column.
Output
Exception

setDataTextFormatString

public void setDataTextFormatString

(string $value )

Input
string	$value	the formatting string used to control how the bound data will be displayed.
Output
Exception

setDataValueField

public void setDataValueField

(string $value )

Sets the field of the data source that provides the key selecting an item in dropdown list.

If this is not present, the data specified via DataTextField (without applying the formatting string) will be used for selection, instead.

Input
string	$value	the field of the data source that provides the key selecting an item in dropdown list.
Output
Exception

setListDataSource

public void setListDataSource

(Traversable|array|string $value )

Input
Traversable\|array\|string	$value	data source to be bound to the dropdown list boxes.
Output
Exception

setListTextField

public void setListTextField

(string $value )

Input
string	$value	the data field used to populate the texts of the dropdown list items
Output
Exception

setListTextFormatString

public void setListTextFormatString

(string $value )

Input
string	$value	the formatting string used to control how the list item texts will be displayed.
Output
Exception

setListValueField

public void setListValueField

(string $value )

Input
string	$value	the data field used to populate the values of the dropdown list items
Output
Exception

setReadOnly

public void setReadOnly

(boolean $value )

Input
boolean	$value	whether the items in the column can be edited
Output
Exception