tkinter Treeview小部件插入数据

Question

这是我的示例代码.我想在按下输入按钮时将条目中输入的项目插入到树视图中.我是python和tkinter的新手,并且没有太多关于treeview的内容.

class PurchaseEntry(tk.Frame):
    def __init__(self, parent, controller):
       tk.Frame.__init__(self, parent)
       self.controller = controller
       PurchaseEntry.configure(self, bg='white')

       label = ttk.Label(self, text='Purchase Entry', font=LARGE_FONT2)
       label.grid(row=0, columnspan=3, sticky='w')

       purchase_entry = ttk.Label(self, text='Purchase Entry:')
       purchase_entry.grid(row=1, column=0)

       self.entry_val = tk.StringVar()
       self.entry_1 = ttk.Entry(self, width=100, textvariable=self.entry_val)
       self.entry_1.grid(row=1, column=2, columnspan=2, sticky='w')
       self.entry_1.focus()

       self.entry_btn = ttk.Button(self,text='Enter', command=self.insert_value)
       self.entry_btn.grid(row=1, column=4, columnspan=2, sticky='w')

       self.chat1 = ttk.Treeview(self)

       chat1 = ttk.Treeview( self, height=28, columns=('dose', 'date   modified'), selectmode="extended")
       chat1.heading('#0', text='item', anchor=tk.CENTER)
       chat1.heading('#1', text='dose', anchor=tk.CENTER)
       chat1.heading('#2', text='date modified', anchor=tk.CENTER)
       chat1.column('#1', stretch=tk.YES, minwidth=50, width=100)
       chat1.column('#2', stretch=tk.YES, minwidth=50, width=120)
       chat1.column('#0', stretch=tk.YES, minwidth=50, width=400)
       chat1.grid(row=2, column=2, columnspan=4, sticky='nsew')

    def insert_value(self):
       value = self.entry_val.get()
       # Inserts data written in the entry box to the treeview widget when Enter button is pressed.
       # Clears the Entry box, ready for another data entry.
       self.entry_1.delete(0, 'end')
       self.chat1.insert('WHAT SHOULD I GIVE AS AN ARGUMENT?')

我应该作为一个论点传递什么？或者treeview是适合这个的小部件,还是有人可以建议适合此问题的小部件？谢谢

Answer 1

您似乎只对如何在单击后将用户在Tkinter.Entry()窗口小部件中键入的数据插入后感兴趣.ttk.Treeview()Tkinter.Button()

我设计了一个简单的界面来向您展示如何解决这个问题.您可以根据问题调整我的解决方案.

以下是应用程序演示的样子:

所以我设置了一个计数器self.i来命名项目.但您可以为此目的添加标签和条目,并且您可以类似于其他Tkinter.Entry()条目插入项目名称.

插入方法是这样的:

def insert_data(self):
    """
    Insertion method.
    """
    self.treeview.insert('', 'end', text="Item_"+str(self.i),
                         values=(self.dose_entry.get() + " mg",
                                 self.modified_entry.get()))
    # Increment counter
    self.i = self.i + 1

可能这里的主要技巧是使用get()表示的事物self.dose_entry.get()和self.dose_modified.get()动作来检索用户键入的数据.

完成后,您现在需要将此方法绑定到要按下的按钮以使用以下command选项触发插入操作:

self.submit_button = Tkinter.Button(self.parent, text="Insert",
                                    command=self.insert_data)

完整计划:

'''
Created on Mar 21, 2016

@author: Bill Begueradj
'''
try:
    import Tkinter
    import ttk
except ImportError:  # Python 3
    import tkinter as Tkinter
    import tkinter.ttk as ttk


class Begueradj(Tkinter.Frame):
    '''
    classdocs
    '''
    def __init__(self, parent):
        '''
        Constructor
        '''
        Tkinter.Frame.__init__(self, parent)
        self.parent=parent
        self.initialize_user_interface()

    def initialize_user_interface(self):
        """Draw a user interface allowing the user to type
        items and insert them into the treeview
        """
        self.parent.title("Canvas Test")
        self.parent.grid_rowconfigure(0, weight=1)
        self.parent.grid_columnconfigure(0, weight=1)
        self.parent.config(background="lavender")

        # Define the different GUI widgets
        self.dose_label = Tkinter.Label(self.parent, text="Dose:")
        self.dose_entry = Tkinter.Entry(self.parent)
        self.dose_label.grid(row=0, column=0, sticky=Tkinter.W)
        self.dose_entry.grid(row=0, column=1)

        self.modified_label = Tkinter.Label(self.parent,
                                            text="Date Modified:")
        self.modified_entry = Tkinter.Entry(self.parent)
        self.modified_label.grid(row=1, column=0, sticky=Tkinter.W)
        self.modified_entry.grid(row=1, column=1)

        self.submit_button = Tkinter.Button(self.parent, text="Insert",
                                            command=self.insert_data)
        self.submit_button.grid(row=2, column=1, sticky=Tkinter.W)
        self.exit_button = Tkinter.Button(self.parent, text="Exit",
                                          command=self.parent.quit)
        self.exit_button.grid(row=0, column=3)

        # Set the treeview
        self.tree = ttk.Treeview(self.parent,
                                 columns=('Dose', 'Modification date'))
        self.tree.heading('#0', text='Item')
        self.tree.heading('#1', text='Dose')
        self.tree.heading('#2', text='Modification Date')
        self.tree.column('#1', stretch=Tkinter.YES)
        self.tree.column('#2', stretch=Tkinter.YES)
        self.tree.column('#0', stretch=Tkinter.YES)
        self.tree.grid(row=4, columnspan=4, sticky='nsew')
        self.treeview = self.tree
        # Initialize the counter
        self.i = 0

    def insert_data(self):
        """
        Insertion method.
        """
        self.treeview.insert('', 'end', text="Item_"+str(self.i),
                             values=(self.dose_entry.get() + " mg",
                                     self.modified_entry.get()))
        # Increment counter
        self.i = self.i + 1


def main():
    root=Tkinter.Tk()
    d=Begueradj(root)
    root.mainloop()

if __name__=="__main__":
    main()

注意:

我用Python 2.7编写了这个,所以如果你使用Python 3.x改变你需要相应改变的东西(主要是导入和你看到Tkinter到tkinter的地方)