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
  - Rectangle
  - Reference Functions
  - Scheduler.ewo
  - Selection list
    - "acceptDrops"
      Specifies whether drop events are enabled for this object.
    - "alternatingRowColors"
      Allows to enable alternating row colors for a selection list / Native_GEDI/DpTreeView.html / Tree Widget.
    - "appendItem"
      Adds an entry to a selection list.
    - "bottomPos"
      A specific item is displayed right at the end of a list.
    - "clearSelection"
      Removes the marking of all items in a graphical object.
    - "deleteAllItems"
      Deletes all items in a list.
    - "deletePos"
      Deletes a specific item from a list.
    - "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 list items.
    - "itemGeometry"
      The read-only property delivers top-left start coordinates as well as width and height of an item in the list.
    - "items"
      Array containing all items in a list.
    - "replacePos"
      Number of a list option to be replaced and the new text for the option.
    - "selectedItems"
      The attribute returns the IDs of the selected items.
    - "selectedPos"
      Selects a specific item from a list.
    - "selectedPositions"
      Returns or sets the numbers of the options selected in a list box.
    - "selectedText"
      Text for the selected list option.
    - "topPos"
      A specific item will be displayed at the very top in a list window.
    - "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.
  - 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

"deleteAllItems"

Deletes all items in a list.

Synopsis

setValue(string shape, "deleteAllItems");

shape.deleteAllItems();

Parameters


Parameter	Description
shape	Name of the object

Description

All items in the object "shape" will be deleted.

Example

 main()
{
  shape list1=getShape("selectionlist1");
  list1.deleteAllItems(); // Delete all
}

Assignment

Selection list