ttk::combobox(3tk) Tk Themed Widget ttk::combobox(3tk)
__________________________________________________________________________________________________________________________________________________
NAME
ttk::combobox - text field with popdown selection list
SYNOPSIS
ttk::combobox pathName ?options?
_________________________________________________________________
DESCRIPTION
A ttk::combobox combines a text field with a pop-down list of values; the user may select the value of the text field from among the values
in the list.
STANDARD OPTIONS
-class -cursor -takefocus
-style
See the ttk_widget manual entry for details on the standard options.
WIDGET-SPECIFIC OPTIONS
Command-Line Name:-exportselection
Database Name: exportSelection
Database Class: ExportSelection
Boolean value. If set, the widget selection is linked to the X selection.
Command-Line Name:-justify
Database Name: justify
Database Class: Justify
Specifies how the text is aligned within the widget. Must be one of left, center, or right.
Command-Line Name:-height
Database Name: height
Database Class: Height
Specifies the height of the pop-down listbox, in rows.
Command-Line Name:-postcommand
Database Name: postCommand
Database Class: PostCommand
A Tcl script to evaluate immediately before displaying the listbox. The -postcommand script may specify the -values to display.
Command-Line Name:-state
Database Name: state
Database Class: State
One of normal, readonly, or disabled. In the readonly state, the value may not be edited directly, and the user can only select one
of the -values from the dropdown list. In the normal state, the text field is directly editable. In the disabled state, no inter-
action is possible.
Command-Line Name:-textvariable
Database Name: textVariable
Database Class: TextVariable
Specifies the name of a global variable whose value is linked to the widget value. Whenever the variable changes value the widget
value is updated, and vice versa.
Command-Line Name:-values
Database Name: values
Database Class: Values
Specifies the list of values to display in the drop-down listbox.
Command-Line Name:-width
Database Name: width
Database Class: Width
Specifies an integer value indicating the desired width of the entry window, in average-size characters of the widget's font.
WIDGET COMMAND
The following subcommands are possible for combobox widgets:
pathName current ?newIndex?
If newIndex is supplied, sets the combobox value to the element at position newIndex in the list of -values. Otherwise, returns the
index of the current value in the list of -values or -1 if the current value does not appear in the list.
pathName get
Returns the current value of the combobox.
pathName set value
Sets the value of the combobox to value.
The combobox widget also supports the following ttk::entry widget subcommands (see ttk::entry(3tk) for details):
bbox delete icursor index insert selection xview The combobox widget also sup-
ports the following generic ttk::widget widget subcommands (see ttk::widget(3tk) for details): cget config-
ure identify instate state
VIRTUAL EVENTS
The combobox widget generates a <<ComboboxSelected>> virtual event when the user selects an element from the list of values. If the selec-
tion action unposts the listbox, this event is delivered after the listbox is unposted.
SEE ALSO
ttk::widget(3tk), ttk::entry(3tk)
KEYWORDS
choice, entry, list box, text box, widget
Tk 8.5 ttk::combobox(3tk)