ttk::radiobutton -
Mutually exclusive option widget
ttk::radiobutton pathName ?options?
radiobutton widgets are used in groups to show or change a set of mutually-exclusive options. Radiobuttons are linked to a Tcl variable, and have an associated value; when a radiobutton is clicked, it sets the variable to its associated value.
| Name | Database name | Database class |
|---|---|---|
| -command | command | Command |
| A Tcl script to evaluate whenever the widget is invoked. | ||
| -value | Value | Value |
| The value to store in the associated -variable when the widget is selected. | ||
| -variable | variable | Variable |
| The name of a global variable whose value is linked to the widget. Default value is ::selectedButton. | ||
In addition to the standard cget, configure, instate, and state commands, radiobuttons support the following additional widget commands:
The widget does not respond to user input if the disabled state is set. The widget sets the selected state whenever the linked -variable is set to the widget's -value, and clears it otherwise. The widget sets the alternate state whenever the linked -variable is unset. (The alternate state may be used to indicate a ``tri-state'' or ``indeterminate'' selection.)
widget(n), keynav(n), checkbutton(n)