Présentation
La fonctionnalité de barre de défilement de Tkinter est limitée à des widgets spécifiques, à l'exclusion des widgets Frame et racine. Surmonter cette limitation nécessite des approches alternatives.
Approche Frame-Embedded-in-Canvas
Solution orientée objet
import tkinter as tk class Example(tk.Frame): def __init__(self, parent): # Initialize frame tk.Frame.__init__(self, parent) # Create canvas and scrollbar self.canvas = tk.Canvas(self, borderwidth=0, background="#ffffff") self.frame = tk.Frame(self.canvas, background="#ffffff") self.vsb = tk.Scrollbar(self, orient="vertical", command=self.canvas.yview) self.canvas.configure(yscrollcommand=self.vsb.set) # Pack widgets self.vsb.pack(side="right", fill="y") self.canvas.pack(side="left", fill="both", expand=True) self.canvas.create_window((4,4), window=self.frame, anchor="nw", tags="self.frame") # Bind frame's <Configure> event to update scroll region self.frame.bind("<Configure>", self.onFrameConfigure) # Populate with data self.populate() def populate(self): for row in range(100): tk.Label(self.frame, text="%s" % row, width=3, borderwidth="1", relief="solid").grid(row=row, column=0) t = "this is the second column for row %s" %row tk.Label(self.frame, text=t).grid(row=row, column=1) def onFrameConfigure(self, event): self.canvas.configure(scrollregion=self.canvas.bbox("all")) if __name__ == "__main__": root=tk.Tk() example = Example(root) example.pack(side="top", fill="both", expand=True) root.mainloop()
Solution procédurale
import tkinter as tk def populate(frame): for row in range(100): tk.Label(frame, text="%s" % row, width=3, borderwidth="1", relief="solid").grid(row=row, column=0) t = "this is the second column for row %s" %row tk.Label(frame, text=t).grid(row=row, column=1) def onFrameConfigure(canvas): canvas.configure(scrollregion=canvas.bbox("all")) root = tk.Tk() canvas = tk.Canvas(root, borderwidth=0, background="#ffffff") frame = tk.Frame(canvas, background="#ffffff") vsb = tk.Scrollbar(root, orient="vertical", command=canvas.yview) canvas.configure(yscrollcommand=vsb.set) vsb.pack(side="right", fill="y") canvas.pack(side="left", fill="both", expand=True) canvas.create_window((4,4), window=frame, anchor="nw") frame.bind("<Configure>", lambda event, canvas=canvas: onFrameConfigure(canvas)) populate(frame) root.mainloop()
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