将py tkinter制作的Treeview中某个单元格改为下拉框
时间: 2024-03-21 13:39:30 浏览: 121
好的,可以的。为了实现这个功能,你需要先在该单元格中创建一个下拉框,并将该下拉框与单元格进行绑定。下面是一个简单的示例代码,供你参考:
```python
import tkinter as tk
from tkinter import ttk
# 创建窗口对象
window = tk.Tk()
# 创建Treeview对象
tree = ttk.Treeview(window)
# 添加Treeview列
tree["columns"] = ("name", "age", "gender")
# 设置Treeview列标题
tree.column("name", width=100, anchor="center")
tree.column("age", width=100, anchor="center")
tree.column("gender", width=100, anchor="center")
tree.heading("name", text="Name")
tree.heading("age", text="Age")
tree.heading("gender", text="Gender")
# 添加Treeview数据
tree.insert("", tk.END, text="001", values=("John Doe", 30, "Male"))
tree.insert("", tk.END, text="002", values=("Jane Doe", 25, "Female"))
tree.insert("", tk.END, text="003", values=("Bob Smith", 40, "Male"))
# 创建下拉框
gender_options = ["Male", "Female"]
gender_var = tk.StringVar()
gender_combobox = ttk.Combobox(tree, textvariable=gender_var, values=gender_options)
# 将下拉框与Treeview单元格绑定
def on_treeview_click(event):
row_id = tree.identify_row(event.y)
column_id = tree.identify_column(event.x)
if row_id and column_id == "#2": # 第2列为Gender列
cell_rect = tree.bbox(row_id, column_id)
gender_combobox.place(x=cell_rect[0], y=cell_rect[1], width=cell_rect[2]-cell_rect[0], height=cell_rect[3]-cell_rect[1])
gender_combobox.current(gender_options.index(tree.item(row_id)["values"][2]))
gender_combobox.focus_set()
gender_combobox.bind("<FocusOut>", on_combobox_focus_out)
gender_combobox.bind("<Return>", on_combobox_focus_out)
gender_combobox.bind("<Escape>", on_combobox_escape)
def on_combobox_focus_out(event):
row_id = tree.focus()
tree.set(row_id, "#2", gender_var.get())
gender_combobox.place_forget()
def on_combobox_escape(event):
gender_combobox.current(gender_options.index(tree.item(tree.focus())["values"][2]))
gender_combobox.place_forget()
tree.bind("<Button-1>", on_treeview_click)
# 显示Treeview
tree.pack()
# 进入消息循环
window.mainloop()
```
在这个示例代码中,我们创建了一个Treeview对象,并添加了一些列和数据。我们还创建了一个下拉框,并将其与Treeview单元格绑定。当用户单击Treeview的Gender列时,我们会在该单元格上显示下拉框。当用户从下拉框中选择了一个选项后,我们会将该值设置到Treeview中,并将下拉框隐藏起来。
如果你想将某个单元格改为下拉框,只需修改示例代码中的`column_id`变量即可。例如,如果你想将第3行第2列改为下拉框,将`column_id`变量的值改为`"#2"`即可。
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