Also, the Combobox has two different forms before the normal state 1. read-only and 2. disabled. The read-only state used in the text field area is mostly non-editable, and the user will choose only the values in the drop-down list box. Examples Lets us discuss the examples of Tkint...
Tkinter Combobox has the other two states besidesnormal, readonly- the text field is not editable, and the user could only select the values from the drop-down list. disabled- the Combobox is grayed out and interaction is impossible. ...
default combo 是可以輸入的,問題會不是預期的文字內容,而且也無法使用 bind(‘<>’) 去處理使用者輸入的內容。解法: You can set thestateto"readonly" cb = ttk.Combobox(root, state="readonly", values=("one", "two", "three")) From thepython 3.6 documentation: state: One of “normal”, ...
from tkinter import * from tkinter.ttk import Combobox def handler(): print("I love {}.".format(var.get())) top = Tk() var = StringVar() langs=("C", "C++", "Java", "Python") cb=Combobox( top,values=langs, textvariable=var) cb.pack(side=LEFT) b=Button(text='ok', command...
ttk 中有 18 种部件 ,其中十二种已存在于 tkinter 中: Button, Checkbutton, Entry, Frame, Label, LabelFrame, Menubutton, PanedWindow, Radiobutton, Scale, Scrollbar 以及Spinbox。 另外六种是新增的: Combobox, Notebook, Progressbar, Separator, Sizegrip 以及Treeview。 它们全都是 Widget 的子类。 Usi...
If statespec is not specified, returns the currently-enabled state flags. statespec will usually be a list or a tuple.Combobox The ttk.Combobox widget combines a text field with a pop-down list of values. This widget is a subclass of Entry. Besides the methods inherited from Widget: ...
Otherwise, returns the index of the current value or -1 if the current value is not in the values list. get() Returns the current value of the combobox. set(value) Sets the value of the combobox to value.Spinbox The ttk.Spinbox widget is a ttk.Entry enhanced with increment and ...
图像的输入/输出 从文件中加载图像： 如果读入的是一个JPG文件，默认状态下会创建一个3通道图像。如果你需要将其制成灰度图像，则使用以下代码： 注 文件格式由其内容（前几个字节）确定。将图像保存为一个文件： 注 文件的格式由其扩展名确定。 用CV :: imdecode和CV :: imencode从内存中读取和写入图像...
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'如果所编辑列的编辑控件是ComboBox If (TypeOf mCols(mColPtr(mEditCol)).EditCtrl Is VB.ComboBox) Then '设置控件的Left、Top、Width、Height With mCols(mColPtr(mEditCol)).EditCtrl 'UserControl.Extender.Left 属性,可读可写的整型值,它使用容器的刻度单位指定控件左边缘相对于容器左边缘的位置...