Tk - Listbox Widget


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Tk listbox widgets are scrollable lists that can be selected. The syntax for listbox widget is shown below −

listbox buttonName options

Listbox Options

Sr.No. Syntax & Description
1

-background color

Used to set background color for widget.

2

-borderwidth width

Used to draw with border in 3D effects.

3

-font fontDescriptor

Used to set font for widget.

4

-foreground color

Used to set foreground color for widget.

5

-height numberOfLines

Used to set number of lines for height of widget.

6

-selectmode mode

Mode can be single, browse, multiple and extended.

7

-exportselection bool

To use multiple listbox widgets, set this option to FALSE. The default is TRUE.

8

-width number

Sets the width for widget.

A simple example for listbox is shown below −

#!/usr/bin/wish

proc setLabel {text} {
    .label configure -text $text 
}
listbox .myList
label .label -text "No Choice selected"
bind .myList {<<ListboxSelect>>}  {setLabel [.myList get active]}
grid .myList -row 0 -column 0 -sticky news
grid .label -row 1 -column 0 -columnspan 2
.myList insert 0 Choice1 Choice2 Choice3

When we run the above program, we will get the following output −

Listbox Example

When we select an option, we will get the following output.

Listbox Example Selected
tk_selection_widgets.htm
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