Tkinter Variable Basic concepts
Some widgets change their content when they are executed, for example, the text box (Entry), the option button (Radio button), etc.
Some widgets we can change their content, for example, Label, etc.
If you want to change their content you can use the parameters of these widgets, for example: textvariable, variable, onvalue, etc.
However, to handle the parameters of the Widget control as variables, you need to use the Variable Classes within the tkinter module, which has 4 subclasses, each of which is actually a data type constructor, and we can combine them with the relevant parameters of the Widget control through the data types of these 4 subclasses.
Variable Type | Description |
---|---|
x = IntVar() |
Integer variable, default is 0 |
x = DoubleVar() |
Floating-point variable, default is 0.0 |
x = StringVar() |
String variable, default is "" |
x = BooleanVar() |
Boolean variable, True is 1, False is 0 |