mappView帮助助手 > mapp View帮助信息 > Widgets > System > LanguageSelector

The following section describes the possible actions and events for the widget.

Actions

Name	Description	Arguments
SetImagePath	Defines the path to the language icons.	•imagePath: DirectoryPath
SetSelectedIndex	Changes the selected element using its index.	•index: Integer
SetSelectedValue	Sets the selected entry based on this value.	•value: String
SetVisible	Controls the visibility of the widget.	•value: Boolean
SetEnable	Controls the usability of the widget.	•value: Boolean
SetStyle	Sets a predefined style for the widget.	•value: StyleReference
ShowTooltip	Mode "Tooltip" can be enabled using this action. When enabled, a tooltip indicator appears inside the widget. For this, a text must be configured in property "Tooltip". This text is displayed when the indicator is selected. Any other operation of a widget terminates mode "Tooltip".
Open	Opens the "LanguageSelector" widget list. NOTE: When creating an event binding, action "Open" can be used with any widget or value change event.
Close	Closes the "LanguageSelector" widget list. NOTE: When creating an event binding, action "Close" can be used with any widget or value change event.
Toggle	Opens or closes the "LanguageSelector" widget list. NOTE: When creating an event binding, action "Toggle" should be used with the value change event.
Focus	Sets the focus to the widget when keyboard operation is enabled.

Table: Actions

•Examples

•Action "Open"/"Close"

•Action "Toggle"

Reading actions

To obtain the result of a reading action, an "operand" must be used. For more information, see here. For how the result can be used in the ResultHandler, see here.

Name	Description	Result
GetSelectedIndex	This action returns the currently selected index.	•result: Integer
GetSelectedValue	This action returns the currently selected value selectedValue.	•result: String

Table: Reading actions

Events

Name	Description	Arguments
Click	Triggered when clicking on the widget.	•origin: String "origin" contains the ID of the widget that triggers the click event. •horizontalPos: String horizontalPos contains the horizontal position of event "Click" in pixels (e.g. 10px starting from the viewport). •verticalPos: String verticalPos contains the vertical position of the click event in pixels (e.g. 10px starting from viewport).
DisabledClick	Triggered when clicking on the disabled widget.	•origin: String "origin" contains the ID of the widget that triggers the click event. •hasPermission: Boolean "hasPermission" defines whether the current user has the necessary rights to access it. •horizontalPos: String horizontalPos contains the horizontal position of the DisabledClick event in pixels (e.g. 10px starting from viewport). •verticalPos: String verticalPos contains the vertical position of the DisabledClick event in pixels (e.g. 10px starting from viewport).
EnableChanged	Triggered when the usability of the widget is changed. This can be changed using various options: 1) Using property enable (binding or via widget action SetEnable) 2) Using property permissionOperate 3) Using usability properties (enable, permissionOperate, OPC UA variable) of the surrounding container widget 4) Using a bound OPC UA variable with write permissions that have been changed.	•value: Boolean "value" defines the usability of the widget. If true is returned, the widget can be used; if false, it cannot be used.
SelectedIndexChanged	Triggered when the selectedIndex (i.e. which element is selected) changes due to an interaction, a binding or an action (setter).	•selectedIndex: Integer •selectedValue: String
VisibleChanged	Triggers when the visibility of the widget is changed. This can be changed using various options: 1) Using property visible (binding or via widget action SetVisible) 2) Using property permissionView 3) Using the visibility properties (visible, permissionView) of the surrounding container widget	•value: Boolean "value" defines the visibility of the widget. If true is returned, the widget is displayed; if false, it is not displayed.
ToggleStateChanged	Triggered when the "LanguageSelector" widget list is opened or closed.	•newValue: Boolean "newValue" returns the new value of widget "LanguageSelector". If true, the list is shown; if false, it is not shown.
OnDragEnter	Triggers when a dragged widget is moved over the target widget.	•widgetId: String "widgetId" contains the ID of the widget that performed the drag operation. •contentId: String "contentId" contains the ID of the piece of content whose widget performed the drag operation.
OnDragLeave	Triggers when a dragged widget is dragged away from the target widget.	•widgetId: String "widgetId" contains the ID of the widget that performed the drag operation. •contentId: String "contentId" contains the ID of the piece of content whose widget performed the drag operation.
OnDrop	Triggers when a dragged widget is released on the target widget. For the definition of drag-and-drop and an explanation of how these events can be used, see here.	•widgetId: String "widgetId" contains the ID of the widget that performed the drag operation. •contentId: String "contentId" contains the ID of the piece of content whose widget performed the drag operation.
FocusIn	Triggered when a widget gets the focus.
FocusOut	Triggered when a widget loses focus.

Table: Events

Actions and events

Actions and events

Actions

Reading actions

Events