CONTROL
- Introduction to CTRL
- CONTROL Classes
- Types of Control Functions
- 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
  - 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
    - "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.
    - "clearItems"
      Clears all items except the first two from radiobox.
    - "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 an radio box or a check box.
    - "itemGeometry"
      The read-only property delivers top-left start coordinates as well as width and height of an item in the widget.
    - "number";
      Sets or gets the n-th radio box element.
    - "text"
      Allows setting the label text for a specific box option or reading a specific option.
    - "textAllLangs"
      Allows setting the label text for a specific box option or reading a specific option. Works like Control_Grafik/text_radio.html, but uses a langString instead.
    - "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.
  - Rectangle
  - Reference Functions
  - Scheduler.ewo
  - Selection list
  - Slider
  - Spin button
  - Splitter
  - Tab
  - Table
  - TextEdit
  - Text field
  - Thumb wheel
  - ToggleSwitch EWO
  - Tree widget
  - Trend
  - WebView EWO
  - Zoom Navigator
    Functions available for the Zoom Navigator widget.
- CONTROL Functions
- CTRL Debugger
  With the CTRL Debugger you can debug the programming language Control.
- CtrlExtension, basics
- CTRLPPCheck
  Save time and money with increased code quality in your projects

"clearItems"

Clears all items except the first two from radiobox.

Synopsis

setValue( string shape, "clearItems");

shape.clearItems( );

Parameters


Parameter	Description
shape	Name of the object

Description

This function removes all entries except the first two from the radiobox.

Assignment

Radiobox