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Completely new set of materials for GUI class! Thanks Tony!!

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This commit is contained in:
MikeTheWatchGuy 2018-10-08 01:36:38 -04:00
parent ee0765c345
commit 8f7356f425
53 changed files with 1909 additions and 903 deletions
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23
ProgrammingClassExamples/5a PSG (listboxes add remove).py
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@ -12,11 +12,12 @@ column1 = [
[sg.InputText( size = (15,1), key = 'add'), sg.ReadButton('Add')],
[sg.ReadButton('Delete selected entry')]]
List = ['Austalia', 'Canada', 'Greece'] #initial listbox entries
#initial listbox entries
List = ['Austalia', 'Canada', 'Greece']
#add initial List to listbox
layout = [
[sg.Listbox(values=[l for l in List], size = (30,8), key ='listbox'),
[sg.Listbox(values=[l for l in List], size = (30,8), key ='_listbox_'),
sg.Column(column1)]]
window = sg.Window('Listbox').Layout(layout)
@ -24,16 +25,20 @@ window = sg.Window('Listbox').Layout(layout)
while True:
button, value = window.Read()
if button is not None:
#value[listbox] returns a list
if button == 'Delete selected entry': #using value[listbox][0] give the string
if value['listbox'] == []: #ensure something is selected
#value[listbox] returns a list
#using value[listbox][0] gives the string
if button == 'Delete selected entry':
#ensure something is selected
if value['_listbox_'] == []:
sg.Popup('Error','You must select a Country')
else:
List.remove(value['listbox'][0]) #find and remove this
#find and remove this
List.remove(value['_listbox_'][0])
if button == 'Add':
List.append(value['add']) #add string in add box to list
List.sort() #sort
#add string in add box to list
List.append(value['add'])
List.sort()
#update listbox
window.FindElement('listbox').Update(List)
window.FindElement('_listbox_').Update(List)
else:
break