ttk Treeview selection_set 不能接受空格 [英] ttk Treeview selection_set can't accept spaces

问题描述

我正在使用 python 中的 tkk 构建 gui，但在使用 Treeview 命令 selection_set() 时遇到了问题.我正在尝试使用它来设置程序启动时的默认选择，但它似乎无法接受其中包含空格的字符串.

I'm building a gui using tkk in python and I'm having trouble with the Treeview command selection_set(). I'm trying to use it to set the default selection when my program starts but it seems that it can't accept a string with spaces in it.

tree.selection_set("Sunset Grill")

原因:

return self.tk.call(self._w, "selection", selop, items)
_tkinter.TclError: Item Sunset not found

谁能给点建议?

推荐答案

您可以尝试以下操作:

tree.selection_set('"Sunset Grill"')

我猜测这是基于 ttk.py 的代码和我对 Tcl 的有限理解.对 tree.selection_set() 的调用调用了 self.selection("set", items)，后者又调用了 self.tk.call(self._w, "selection", selop, items) 其中 selop 是 'set' 并且 items 是最初传递给 selection_set().

I'm guessing this based on the code for ttk.py and my limited understanding of Tcl. The call to tree.selection_set() calls self.selection("set", items), which in turn calls self.tk.call(self._w, "selection", selop, items) where selop is 'set' and items is the string initially passed to selection_set().

我不确定 self.tk.call() 在将参数传递给 Tcl 之前是否对参数进行了任何处理，因为它是对 _tkinter.c 模块的调用 并且我对 Python/C 接口的了解还不够深入了解该代码.;)

I'm not sure if the self.tk.call() is doing any massaging of the arguments before passing them to Tcl as it's a call into the _tkinter.c module and I don't know enough about the Python/C interface to grok that code. ;)

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