44 lines
1.4 KiB
Python
44 lines
1.4 KiB
Python
#PySimple examples (v 3.8)
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#Tony Crewe
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#Sep 2018
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import PySimpleGUI as sg
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sg.ChangeLookAndFeel('BlueMono')
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#use column feature with height listbox takes up
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column1 = [
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[sg.Text('Add or Delete Items\nfrom a Listbox', font = ('Arial', 12, 'bold'))],
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[sg.InputText( size = (15,1), key = 'add'), sg.ReadButton('Add')],
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[sg.ReadButton('Delete selected entry')]]
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#initial listbox entries
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List = ['Austalia', 'Canada', 'Greece']
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#add initial List to listbox
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layout = [
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[sg.Listbox(values=[l for l in List], size = (30,8), key ='_listbox_'),
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sg.Column(column1)]]
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window = sg.Window('Listbox').Layout(layout)
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while True:
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button, value = window.Read()
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if button is not None:
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#value[listbox] returns a list
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#using value[listbox][0] gives the string
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if button == 'Delete selected entry':
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#ensure something is selected
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if value['_listbox_'] == []:
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sg.Popup('Error','You must select a Country')
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else:
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#find and remove this
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List.remove(value['_listbox_'][0])
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if button == 'Add':
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#add string in add box to list
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List.append(value['add'])
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List.sort()
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#update listbox
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window.FindElement('_listbox_').Update(List)
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else:
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break
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