Tk - Combobox Widget


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Combobox widget is a widget that combines an entry with a list of choices available to the use. The syntax for combobox widget is shown below −

combobox comboboxName options

Options

The options available for the combobox widget are listed below in table.

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

-textvariable varName

Variable associated with the widget. When the text of widget changes, the variable is set to text of widget.

6

-values array

Arbitrary values for combobox widget.

7

-width number

Sets the width for widget.

8

-justify alignment

Sets the alignment of text, which can be left, center, or right.

9

-state requiredState

Sets the state, which can be read_only, disabled, or normal.

10

-postcommand command

Procedure to be executed post action.

A simple example for combobox widget is shown below −

#!/usr/bin/wish

set mylist [list C C++ Lua Tcl]
pack [ttk::combobox .s1  -textvariable combovalue -values $mylist -background yellow
   -font {Helvetica -18 bold} -foreground red -width 40 -justify left -state normal]
set combovalue "C"

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

Combobox Example
tk_mega_widgets.htm
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