我在框架布局方面遇到问题。数据存储在数据框中，目的是能够浏览文件并从 ComboBox 中选择该文件。我正在尝试在框架中显示内容。第一次它工作正常。第二次它只是将它添加到先前数据下的垂直大小。我需要删除或替换数据。显示的数据应该是更新的数据框。我已经在 GridSizer、Vertical BoxSizer 上尝试了 .Destroy()，我尝试添加更多的尺寸器并结合 Freeze() 和 Thaw() 方法，并添加一个新的面板类。似乎没有任何效果。
我也很难让 GridSizer 中的 StaticText 框调整以适应屏幕。我究竟做错了什么？
def onOpenFile(self, event):
"""
Create and show the Open FileDialog
"""
global column_names
global df_lookup_options
global options_ID
#self.Freeze
#Dialog 1
dlg1 = wx.FileDialog(
self, message="Browse Files",
defaultFile="",
wildcard=wildcard,
style=wx.FD_OPEN | wx.FD_MULTIPLE | wx.FD_CHANGE_DIR)
if dlg1.ShowModal() == wx.ID_OK:
paths = dlg1.GetPaths()
for path in paths:
filepath = path.replace("\\","/")
xls = xlrd.open_workbook(filepath, on_demand=True)
sheet_options = xls.sheet_names()
dlg1.Destroy()
#Dialog 2
dlg2 = wx.SingleChoiceDialog(None,"Select
Worksheet","Worksheet",sheet_options,wx.CHOICEDLG_STYLE)
if dlg2.ShowModal() == wx.ID_OK:
sel_sheet = dlg2.GetStringSelection()
sel_index = dlg2.GetSelection()
#Get Count of Worksheet Rows and Colums
wb = xlrd.open_workbook(filepath)
sheet = wb.sheet_by_index(sel_index)
row_count = sheet.nrows
column_count = sheet.ncols
df_rows = len(df_lookup_options.index)
dlg2.Destroy()
#Dialog 3
dlg3 = wx.TextEntryDialog(None,"Enter Unique ID","Unique ID")
if dlg3.ShowModal() == wx.ID_OK:
unique_id = dlg3.GetValue()
dlg3.Destroy()
#Dialog 4
dlg4 = wx.TextEntryDialog(None,"Enter Header Row","Header Row")
if dlg4.ShowModal() == wx.ID_OK:
header_row = dlg4.GetValue()
dlg4.Destroy()
#Dialog 5
dlg5 = wx.TextEntryDialog(None,"Enter First Data Column #","Start Column")
if dlg5.ShowModal() == wx.ID_OK:
column_start = dlg5.GetValue()
dlg5.Destroy()
#Add Variables to Dataframe Row
df_lookup_options = df_lookup_options.append({'Unique
ID':unique_id,'Worksheet':sel_sheet,'Index':sel_index,'Filepath':filepath,
'Rows':row_count,'Columns':column_count,'Header
Row':header_row,
'Start Column':column_start},ignore_index=True)
options_ID = df_lookup_options['Unique ID'].tolist()
self.combo1.Clear()
self.combo1.Append(options_ID)
#Get Dataframe Size
df_row = len(df_lookup_options)
df_col = len(df_lookup_options.columns)
#Display Source info
#self.fgs.Destroy()
#self.vbox = wx.BoxSizer(wx.VERTICAL)
self.fgs = wx.FlexGridSizer(df_row + 1,df_col,2,25)
#Create Headers
for i in column_names:
self.fgs.Add(wx.StaticText(self, label = i), proportion=1, flag=wx.ALIGN_CENTER_VERTICAL
| wx.ALIGN_CENTER_HORIZONTAL | wx.ALL, border=5)
self.Layout
##
for r in range(df_row):
for y in range(df_col):
for c in range(1,df_col + 1):
i = df_lookup_options.iloc[r, y]
txt = str(i)
self.fgs.Add(wx.StaticText(self, label = txt), proportion=1, flag=wx.ALL | wx.EXPAND)
self.vbox.Add(self.fgs, proportion=1, flag=wx.ALL|wx.EXPAND, border=10)
self.SetSizer(self.vbox)
self.Fit()
self.Layout()
#self.Thaw
完整代码：
import wx
import xlrd
import pandas as pd
wildcard = "Excel Files(*.xlsm; *.xlsx)|*.xlsm;*.xlsx|" \
"All files (*.*)|*.*"
#"Python source (*.py; *.pyc)|*.py;*.pyc|" \
#"All files (*.*)|*.*"
column_names = ['Unique ID','Worksheet','Index','Filepath','Rows','Columns','Header Row','Start
Column']
df_lookup_options = pd.DataFrame(columns=column_names)
df_lookup = pd.DataFrame()
options_ID = []
source_selection = ""
########################################################################
class MyForm(wx.Frame):
#----------------------------------------------------------------------
def __init__(self):
wx.Frame.__init__(self, None, wx.ID_ANY,
"Set Source Files")
self.vbox = wx.BoxSizer(wx.VERTICAL)
#self.vbox2 = wx.BoxSizer(wx.VERTICAL)
#self.hbox = wx.BoxSizer(wx.HORIZONTAL)
self.btn = wx.Button(self, label="Add Source File")
self.btn.Bind(wx.EVT_BUTTON, self.onOpenFile)
self.combo1 = wx.ComboBox(self, choices=options_ID)
self.combo1.Bind(wx.EVT_COMBOBOX, self.onCombo)
self.combo1.SetHint('-Choose Source-')
self.vbox.Add(self.btn, flag=wx.EXPAND|wx.TOP|wx.BOTTOM, border=4)
self.vbox.Add(self.combo1, flag=wx.EXPAND|wx.TOP|wx.BOTTOM, border=4)
#self.hbox.Add(self.fgs1, flag=wx.EXPAND|wx.TOP|wx.BOTTOM, border=4)
#self.vbox.Add(self.hbox, flag=wx.EXPAND|wx.TOP|wx.BOTTOM, border=4)
#self.vbox.Add(self.fgs, flag=wx.EXPAND|wx.TOP|wx.BOTTOM, border=4)
self.SetSizer(self.vbox)
#----------------------------------------------------------------------
def onOpenFile(self, event):
"""
Create and show the Open FileDialog
"""
global column_names
global df_lookup_options
global options_ID
#self.Freeze
#Dialog 1
dlg1 = wx.FileDialog(
self, message="Browse Files",
defaultFile="",
wildcard=wildcard,
style=wx.FD_OPEN | wx.FD_MULTIPLE | wx.FD_CHANGE_DIR)
if dlg1.ShowModal() == wx.ID_OK:
paths = dlg1.GetPaths()
for path in paths:
filepath = path.replace("\\","/")
xls = xlrd.open_workbook(filepath, on_demand=True)
sheet_options = xls.sheet_names()
dlg1.Destroy()
#Dialog 2
dlg2 = wx.SingleChoiceDialog(None,"Select
Worksheet","Worksheet",sheet_options,wx.CHOICEDLG_STYLE)
if dlg2.ShowModal() == wx.ID_OK:
sel_sheet = dlg2.GetStringSelection()
sel_index = dlg2.GetSelection()
#Get Count of Worksheet Rows and Colums
wb = xlrd.open_workbook(filepath)
sheet = wb.sheet_by_index(sel_index)
row_count = sheet.nrows
column_count = sheet.ncols
df_rows = len(df_lookup_options.index)
dlg2.Destroy()
#Dialog 3
dlg3 = wx.TextEntryDialog(None,"Enter Unique ID","Unique ID")
if dlg3.ShowModal() == wx.ID_OK:
unique_id = dlg3.GetValue()
dlg3.Destroy()
#Dialog 4
dlg4 = wx.TextEntryDialog(None,"Enter Header Row","Header Row")
if dlg4.ShowModal() == wx.ID_OK:
header_row = dlg4.GetValue()
dlg4.Destroy()
#Dialog 5
dlg5 = wx.TextEntryDialog(None,"Enter First Data Column #","Start Column")
if dlg5.ShowModal() == wx.ID_OK:
column_start = dlg5.GetValue()
dlg5.Destroy()
#Add Variables to Dataframe Row
df_lookup_options = df_lookup_options.append({'Unique
ID':unique_id,'Worksheet':sel_sheet,'Index':sel_index,'Filepath':filepath,
'Rows':row_count,'Columns':column_count,'Header
Row':header_row,
'Start Column':column_start},ignore_index=True)
options_ID = df_lookup_options['Unique ID'].tolist()
self.combo1.Clear()
self.combo1.Append(options_ID)
#Get Dataframe Size
df_row = len(df_lookup_options)
df_col = len(df_lookup_options.columns)
#Display Source info
#self.fgs.Destroy()
#self.vbox = wx.BoxSizer(wx.VERTICAL)
self.fgs = wx.FlexGridSizer(df_row + 1,df_col,2,25)
#Create Headers
for i in column_names:
self.fgs.Add(wx.StaticText(self, label = i), proportion=1, flag=wx.ALIGN_CENTER_VERTICAL
| wx.ALIGN_CENTER_HORIZONTAL | wx.ALL, border=5)
self.Layout
##
for r in range(df_row):
for y in range(df_col):
for c in range(1,df_col + 1):
i = df_lookup_options.iloc[r, y]
txt = str(i)
self.fgs.Add(wx.StaticText(self, label = txt), proportion=1, flag=wx.ALL | wx.EXPAND)
self.vbox.Add(self.fgs, proportion=1, flag=wx.ALL|wx.EXPAND, border=10)
self.SetSizer(self.vbox)
self.Fit()
self.Layout()
#self.Thaw
def onCombo(self, event):
global df_lookup
self.source_selection = self.combo1.GetSelection()
file_name = df_lookup_options.iloc[self.source_selection, 3]
sheet_name = df_lookup_options.iloc[self.source_selection, 1]
start_header_row = int(df_lookup_options.iloc[self.source_selection, 6]) - 1
start_column = int(df_lookup_options.iloc[self.source_selection, 7]) - 1
#----------------------------------------------------------------------
# Run the program
if __name__ == "__main__":
app = wx.App(False)
frame = MyForm()
frame.Show()
app.MainLoop()