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pythontkinterttk

tkinter Styles not being found

I am trying to style my treeview

#Treeview Style
treeStyle = ttk.Style()
treeStyle.configure("mystyle.Treeview", highlightthickness=0, bd=0, font=('Arial', 11)) # Modify the font of the body
treeStyle.configure("mystyle.Treeview.Heading", font=('Arial', 13,'bold')) # Modify the font of the headings
treeStyle.layout("mystyle.Treeview", [('mystyle.Treeview.treearea', {'sticky': 'nswe'})]) # Remove the borders

#treeview Frame Widgets Define
EmployView=ttk.Treeview(treeviewFrame,style=treeStyle)

However when I run the above code I get this error:

_tkinter.TclError: Layout <tkinter.ttk.Style object at 0x02FEAAF0> not found

I have clearly defined the style, so I'm confused as to why it is not being found.

Solution

  • The issue here is that you are not passing the right argument to the style option of the treeview. This option is not expecting a Style object but a string, in your case "mystyle.Treeview". The widgets' styles are just strings of the form "<stylename>.<Layout>" (if you don't put the "<stylename>." it will change the default widget's style) and they are managed / cutsomized using the Style object.