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Business Logic / Control
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Control graphics
Combobox
"itemEnabled"
The attribute "itemEnabled" enables or disables an item in a non-editable combo box.

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Business Logic / Control
Endless possibilities in data processing for your projects.
- Introduction to CTRL
  An introduction to the product's own programming language Control(CTRL).
- Control Classes
  The overview of classes available in Control.
- Types of Control Functions
  An overview of the types of functions distinguished within Control.
- Control graphics
  - Graphics objects
  - Attributes of graphics objects
  - Panel functions
  - Reference Functions
  - Arc
  - AttentionEffect EWO functions
  - Bar trend
  - BarChart3D EWO
  - Button
  - Chart.ewo
  - Calendar
  - Cascade
  - Checkbox
  - Clock
  - Combobox
    - "acceptDrops"
      Specifies whether drop events are enabled for this object.
    - "appendItem_combo"
      Adds an item to the combo box, spin button, radio box or check box.
    - "currentIndex"
      Returns or sets the current item in the combo box. The function is similar to "selectedPos()" but uses the index of an item for selection instead of a position.
    - "deleteAllItems"
      Deletes all box options.
    - "deletePos"
      Deletes a specific option from the combo box.
    - "editable"
      Specifies whether the selection text can be overwritten by a user.
    - "events" (obsolete)
      Gets all events that are available for a shape. Obsolete, use scriptNames instead.
    - "font"
      Sets the font of an object.
    - "itemCount"
      Returns the number of options.
    - "itemEnabled"
      The attribute "itemEnabled" enables or disables an item in a non-editable combo box.
    - "items"
      Array containing all box options.
    - "placeholderText"
      This text is displayed grayed out until the user writes something in the text field.
    - "replacePos"
      Replaces the text for a specific option.
    - "selectedPos"
      Returns or sets the number of the option selected in a combo box.
    - "selectedText"
      Returns or sets the text of the selected entry.
    - "text"
      Contents of the text field of a combo box.
    - "updatesEnabled"
      This attribute specifies whether updates of a widget (for example, a textEdit, slider, progress bar, zoom navigator, LCD number or thumb wheel) have been enabled.
    - "userData"
      Saves/Returns a user-specific text for an item.
  - DateTimeEdit EWO functions
  - DialGauge EWO
  - DoubleSpinbox EWO
  - DpTreeView
  - DpTypeView
  - Embedded module
  - Frame
  - GIS Viewer EWO
    WinCC OA GIS Viewer provides the cartographic representation of objects in WinCC OA. This new feature provides numerous advantages, particularly in geographical distributed systems, like in Water, Traffic, Oil & Gas or Energy.
  - Label Functions
  - Layoutgroup functions
  - LCD number
  - Maps Widget - Properties and Functions
  - PDF Viewer EWO
  - PictureFlow EWO functions
  - Pipe
  - Polyline
  - Primitive text
  - Progress bar
  - Radio box
  - Rectangle
  - Reference Functions
  - Scheduler.ewo
  - Selection list
  - Slider
  - Spin button
  - Splitter
  - Tab
  - Table
  - TextEdit
  - Text field
  - Thumb wheel
  - ToggleSwitch EWO
  - Tree widget
  - Trend
  - VideoPlayer.ewo
  - WebView EWO
    All functions, specifically available for the WebView EWO.
  - Zoom Navigator
    Functions available for the Zoom Navigator widget.
- CONTROL Functions
- CtrlExtension
  The CtrlExtension allows the addition of custom C++ code.
- CTRL Debugger
  You can use the CTRL debugger to debug the Control programming language. The debugger can be used via its own panel, which also enables the monitoring and setting of variable values during the execution of a script.
- SQL in CONTROL
  The database functions enable you to quickly carry out value queries on data points and elements.
- API Manager
  The WinCC OA API (Application Programming Interface) offers a number of functions adding special Managers to this process control system.
- NextGen Archiver Backend-API
  This chapter describes the NextGen Archiver Backend API
Data Visualization
User interfaces, Trends and Reports for every purpose and device.
Southbound Interfaces
The process connection to the actual machines/sensors.
Northbound Interfaces
Your portal to the cloud or supervising systems.
Web Connectivity / Network Interfaces
Data exchange, APIs and web technologies
User Management
All about authorization, authentication and login-customization.
Availability
How to get your system uptime to the maximum.
Reporting
Create state of the art project reports without limits.
Addons
Useful tools and enhancements for special demands.
Reference Tables
Detailed and extensive content for special project adaptation.
Videos & Tutorials
Explore the capabilities of WinCC OA with our carefully selected collection of video tutorials and guides.
WinCC OA Documentation
Basic information about terms and functions within the documentation.
Disclaimer
A brief clarification of liability exclusions or legal notices.

"itemEnabled"

The attribute "itemEnabled" enables or disables an item in a non-editable combo box.

Synopsis

setValue(string shape, "itemEnabled", int index, bool enabled);

getValue(string shape, "itemEnabled", int index, bool &enabled);

shape.itemEnabled(int index, bool enabled);

Parameter


Parameter	Description
shape	Object name
index	Index starts from 0.
enabled	TRUE = enabled FALSE = disabled

Description

The attribute "itemEnabled" enables or disables an item in a non-editable combo box.

To use this function, the "editable" property of the combo box has to be set to "FALSE". If it is set to "TRUE", all disabled items will be enabled again.

Assignment

combo box