我已经创建了一个按钮,一个条目和一个文件对话框功能。在我按下“浏览”后按钮文件对话框没有出现,所以如何确保我的custName.set(filename)
可以在我的TracingMethod()函数中使用。
我创建文件对话框的步骤:
步骤1:从tkinter导入文件对话框
from tkinter import filedialog
第2步:创建按钮和条目
self.browseButton = Button(self.radioframe, text="Browse",command = self.open)
self.browseButton.grid(row =3, column =3, sticky = W)
#Define the entry
custName = StringVar(None)
location_ent =Entry(self.radioframe,textvariable = custName)
location_ent.grid(row =2, column = 2, sticky = W,columnspan=1)
location_ent.update()
location_ent.focus_set()
步骤3:创建open()函数[IDE在此处显示错误]
def open():
filename = filedialog.askopenfilename(parent=root,title='Choose a file')
custName.set(filename)
我在想的是我在勺子之外定义功能吗? 所以我提供完整的编码供参考。
from tkinter import *
from tkinter import filedialog
class TracingInterface(Frame):
def __init__(self, master):
super().__init__()
master.minsize(width=700, height=520)
master.maxsize(width=700, height=520)
Grid.config(self)
self.TracingMethod()
self.logDetails()
self.otherFunctionInterface()
def TracingMethod(self):
self.traceMethodSelect = StringVar()
self.traceMethodSelect.set("LT")
self.radioframe = LabelFrame(self,text="Tracing Method",height= 120,width =300)
self.radioframe.grid(row= 0, column=0)
self.radioframe.grid_propagate(0)
self.radioframe.LT= Radiobutton(
self.radioframe, text="Live Tracing",
variable=self.traceMethodSelect, value="LT",
anchor=W).grid(row=1, column = 0, sticky = W,columnspan=2)
self.radioframe.SL= Radiobutton(
self.radioframe, text="Specific Location",
variable=self.traceMethodSelect, value="SL",
anchor=W).grid(row=2, column = 0, sticky = W,columnspan=2)
self.traceButton = Button(self.radioframe, text="Trace")
self.traceButton.grid(row =3, column =0, sticky = W)
self.cancelButton = Button(self.radioframe, text="Cancel")
self.cancelButton.grid(row =3, column =1, sticky = W)
self.configUAButton = Button(self.radioframe, text="Configuration",command=printMessage)
self.configUAButton.grid(row =3, column =2, sticky = W)
self.configUAButton.config(width=15)
self.browseButton = Button(self.radioframe, text="Browse",command = self.open)
self.browseButton.grid(row =3, column =3, sticky = W)
custName = StringVar(None)
location_ent =Entry(self.radioframe,textvariable = custName)
location_ent.grid(row =2, column = 2, sticky = W,columnspan=1)
location_ent.update()
location_ent.focus_set()
def logDetails(self):
self.logframe = LabelFrame(self,text="Log Details",height= 520,width =390,padx=15)
self.logframe.grid_propagate(0)
self.logframe.grid_rowconfigure(0,weight =1)
self.logframe.grid_columnconfigure(0,weight=1)
xscrollbar = Scrollbar(self.logframe,orient = HORIZONTAL)
xscrollbar.grid(row=1, column=1, sticky=E+W,columnspan=2)
yscrollbar = Scrollbar(self.logframe,orient= VERTICAL)
yscrollbar.grid(row=0, column=3, sticky=N+S)
text = Text(self.logframe,width=50,height=50, wrap=NONE, xscrollcommand=xscrollbar.set,
yscrollcommand=yscrollbar.set)
text.grid(row=0, column=1, columnspan=2)
# attach listbox to scrollbar
xscrollbar.config(command=text.xview)
yscrollbar.config(command=text.yview)
button_1 = Button(self.logframe, text="View", command=printMessage,width =10)
button_1.grid(row=2,column= 1)
button_2 = Button(self.logframe, text="Export", command=printMessage,width =10)
button_2.grid(row=2,column= 2)
self.logframe.grid(row=0,column =1,rowspan=5)
def otherFunctionInterface(self):
self.otherFrame = LabelFrame(self,text="Other Function",height= 400,width =300)
self.otherFrame.grid(row=4, column=0)
self.otherFrame.grid_propagate(0)
OpenPreviousCaseFile = Button(self.otherFrame, text="Open previous case file", command=printMessage,height = 4,
width =21)
OpenPreviousCaseFile.grid(row=5,column= 0,pady=5,padx=5)
OpenPreviousTracingResult = Button(self.otherFrame, text="Open last tracing result ", command=printMessage,
height = 4, width =21)
OpenPreviousTracingResult.grid(row=6,column= 0,pady=5,padx=5)
OpenMenualbtn = Button(self.otherFrame, text="User manual", command=printMessage,height =4, width =21)
OpenMenualbtn.grid(row=7,column= 0,pady=5,padx=5)
AboutBtn = Button(self.otherFrame, text="About", command=printMessage,height = 4, width =21)
AboutBtn.grid(row=8,column= 0,pady=5,padx=5)
locateCaseFile = Entry(self.otherFrame)
locateCaseFile.grid(row=5,column = 1)
locateTraceResult = Entry(self.otherFrame)
locateTraceResult.grid(row=6,column = 1)
def open():
filename = filedialog.askopenfilename(parent=root,title='Choose a file')
custName.set(filename)
def printMessage():
print("Wow this actually worked!")
if __name__=='__main__':
root=Tk()
root.title("Windows User Activity History Tracing and Analysing System")
tif= TracingInterface(root)
root.mainloop()
答案 0 :(得分:3)
self.browseButton
窗口小部件未显示,因为您将columnspan
的{{1}}选项设置为1.您必须将其修改为2,因为您也有location_ent
按钮。< / p>
这意味着您需要更改:
self. configUAButton
要:
location_ent.grid(row =2, column = 2, sticky = W,columnspan=1)
但你现在几乎不能location_ent.grid(row =2, column = 2, sticky = W,columnspan=2)
o因为你为self.browseButt
设置的宽度不够。所以改变这一行:
self.radioframe
为:
self.radioframe = LabelFrame(self,text="Tracing Method",height= 120,width =300)
当然,您需要修改self.radioframe = LabelFrame(self,text="Tracing Method",height= 120,width =355)
窗口的width
选项。为此,请更改:
master
最后,您无法访问master.minsize(width=700, height=520)
master.maxsize(width=700, height=520)
,因为您需要将其设为instance variable。这意味着您需要更改:
custName
要:
self.custName = StringVar(None)
location_ent =Entry(self.radioframe,textvariable = self.custName)
要:
self.custName = StringVar(None)
location_ent =Entry(self.radioframe,textvariable = self.custName)
并且(因此)在master.minsize(width=755, height=520)
master.maxsize(width=755, height=520)
方法中:
open()
要:
custName.set(filename)
让我们把前面提到的所有内容放在一起:
self.custName.set(filename)
以下是运行上述程序的屏幕截图:
答案 1 :(得分:1)
你有几个错误:
custName
(当然location_ent
)应该是班级的属性 open
函数必须是TracingInterface
类的方法,并且必须将返回字符串分配给self.custName
:
class TracingInterface(Frame):
# ...
def TracingMethod(self):
# ...
self.custName = StringVar(None)
self.location_ent =Entry(self.radioframe,textvariable = self.custName)
self.location_ent.grid(row =2, column = 2, sticky = W,columnspan=2)
self.location_ent.update()
self.location_ent.focus_set()
def open(self):
filename = filedialog.askopenfilename(parent=root,title='Choose a file')
self.custName.set(filename)
顺便看到按钮,我必须将location_ent
的专栏从1更改为2并增加主要及其左侧部分100的宽度:
# Increase global width
master.minsize(width=800, height=520)
master.maxsize(width=800, height=520)
# ...
# Increase TracingMethod width
self.radioframe = LabelFrame(self,text="Tracing Method",height= 120,width =400)
# ...
# Increase columnspan
location_ent.grid(row =2, column = 2, sticky = W,columnspan=2)
# ...
# Increase otherFunction width
self.otherFrame = LabelFrame(self,text="Other Function",height= 400,width =400)