import tkinter as tk
class Test():
def __init__(self):
self.root = tk.Tk()
self.frm1 = tk.Frame(self.root)
self.entry_value = tk.StringVar()
self.entry1 = tk.Entry(self.frm1,textvariable = self.entry_value)
self.listbox1 = tk.Listbox(self.frm1)
self.base_selection_list = ["A","AB","ABCD","ABCDE","ABCDEF"]
#self.set_list_value(self.base_selection_list)
self.entry1.grid(column=0, row=0, padx=10)
self.listbox1.grid(column=0, row=1, padx=10)
self.listbox1.grid_remove()
self.frm1.pack()
self.entry1.bind("<KeyRelease>", self.entry_change)
self.entry1.bind("<Button-3>", self.hide_list)
self.listbox1.bind("<<ListboxSelect>>", self.list_select)
self.root.mainloop()
#有输入变化的时候，设置下拉列表，并显示列表
def entry_change(self, event):
entry_value = self.entry1.get().strip()
self.listbox1.delete(0, self.listbox1.size()-1)
new_select_list = []
for selection_info in self.base_selection_list:
if (len(entry_value) > 0) and (entry_value in selection_info):
new_select_list.append(selection_info)
print(entry_value, new_select_list)
if len(new_select_list) > 0:
self.set_list_value(new_select_list)
#显示出来
self.listbox1.grid()
else:
self.listbox1.grid_remove()
def hide_list(self, event):
self.listbox1.grid_remove()
#选择完下拉列表后，直接隐藏
def list_select(self, event):
index_num = self.listbox1.curselection()[0]
select_value = self.listbox1.get(index_num)
self.entry_value.set(select_value)
#隐藏起来
self.listbox1.grid_remove()
def set_list_value(self, value_list):
#["A","AB","ABCD","ABCDE","ABCDEF"]
for item in value_list:
self.listbox1.insert("end",item)
app = Test()
