Merge pull request #872 from MikeTheWatchGuy/Dev-latest

New Demo - listbox with a search filter

DemoPrograms/Demo_Listbox_Search_Filter.py

@@ -0,0 +1,27 @@
+import PySimpleGUI as sg
+
+names = ['Roberta', 'Kylie', 'Jenny', 'Helen',
+        'Andrea', 'Meredith','Deborah','Pauline',
+        'Belinda', 'Wendy']
+
+layout = [  [sg.Text('Listbox with search')],
+            [sg.Input(do_not_clear=True, size=(20,1),enable_events=True, key='_INPUT_')],
+            [sg.Listbox(names, size=(20,4), enable_events=True, key='_LIST_')],
+            [sg.Button('Chrome'), sg.Button('Exit')]]
+
+window = sg.Window('Listbox with Search').Layout(layout)
+# Event Loop
+while True:
+    event, values = window.Read()
+    if event is None or event == 'Exit':                # always check for closed window
+        break
+    if values['_INPUT_'] != '':                         # if a keystroke entered in search field
+        search = values['_INPUT_']
+        new_values = [x for x in names if search in x]  # do the filtering
+        window.Element('_LIST_').Update(new_values)     # display in the listbox
+    else:
+        window.Element('_LIST_').Update(names)          # display original unfiltered list
+    if event == '_LIST_' and len(values['_LIST_']):     # if a list item is chosen
+        sg.Popup('Selected ', values['_LIST_'])
+
+window.Close()