从可编辑 wx.ListCtrl 中保存编辑 - wxPython
Save edit from editable wx.ListCtrl - wxPython
当您双击变量或文件中的单元格时，有没有办法保存您所做的编辑？我希望能够编辑单元格并更新我的数据库（一个 .txt 文件）。以我从here中找到的代码为例，一个可编辑的listctrl:
import wx
import wx.lib.mixins.listctrl as listmix
########################################################################
class EditableListCtrl(wx.ListCtrl, listmix.TextEditMixin):
''' TextEditMixin allows any column to be edited. '''
#----------------------------------------------------------------------
def __init__(self, parent, ID=wx.ID_ANY, pos=wx.DefaultPosition,
size=wx.DefaultSize, style=0):
"""Constructor"""
wx.ListCtrl.__init__(self, parent, ID, pos, size, style)
listmix.TextEditMixin.__init__(self)
########################################################################
class MyPanel(wx.Panel):
""""""
#----------------------------------------------------------------------
def __init__(self, parent):
"""Constructor"""
wx.Panel.__init__(self, parent)
rows = [("Ford", "Taurus", "1996", "Blue"),
("Nissan", "370Z", "2010", "Green"),
("Porche", "911", "2009", "Red")
]
self.list_ctrl = EditableListCtrl(self, style=wx.LC_REPORT)
self.list_ctrl.InsertColumn(0, "Make")
self.list_ctrl.InsertColumn(1, "Model")
self.list_ctrl.InsertColumn(2, "Year")
self.list_ctrl.InsertColumn(3, "Color")
index = 0
for row in rows:
self.list_ctrl.InsertStringItem(index, row[0])
self.list_ctrl.SetStringItem(index, 1, row[1])
self.list_ctrl.SetStringItem(index, 2, row[2])
self.list_ctrl.SetStringItem(index, 3, row[3])
index += 1
sizer = wx.BoxSizer(wx.VERTICAL)
sizer.Add(self.list_ctrl, 0, wx.ALL|wx.EXPAND, 5)
self.SetSizer(sizer)
########################################################################
class MyFrame(wx.Frame):
""""""
#----------------------------------------------------------------------
def __init__(self):
"""Constructor"""
wx.Frame.__init__(self, None, wx.ID_ANY, "Editable List Control")
panel = MyPanel(self)
self.Show()
#----------------------------------------------------------------------
if __name__ == "__main__":
app = wx.App(False)
frame = MyFrame()
app.MainLoop()
编辑：Rolf of Saxony 提供的解决方案的打印输出：
Ford Taurus 1996 Blue
Changed Item: Column: 3
Entire listctrl BEFORE the update:
Ford Taurus 1996 Blue
Nissan 370Z 2010 Green
Porche 911 2009 Red
Entire listctrl AFTER the update:
Ford Taurus 1996
Nissan 370Z 2010 Green
Porche 911 2009 Red
Data for export
Ford Taurus 1996
Nissan 370Z 2010 Green
Porche 911 2009 Red
如您所见，如果我像您一样尝试编辑它，则不会显示任何内容。
我假设您想知道如何访问 listctrl 中的数据而不是写入文件。
可编辑的 listctrl 是一个偷偷摸摸的野兽，因为你在编辑后看到的内容实际上并不在数据中，直到你更新它（使用 self.list_ctrl.SetStringItem().
该方法是绑定到 wx.EVT_LIST_END_LABEL_EDIT 并执行已更改的 listctrl 项的更新。
这个例子希望向您展示如何访问更改的项目、访问整个 listctrl、执行更新、访问整个（更新的）listctrl 以及最后创建可导出数据。
每次编辑后打印和输出。实际上，您可以在退出时或通过单击按钮等方式执行数据导出，而不是在每次编辑后执行。
import wx
import wx.lib.mixins.listctrl as listmix
########################################################################
class EditableListCtrl(wx.ListCtrl, listmix.TextEditMixin):
''' TextEditMixin allows any column to be edited. '''
#----------------------------------------------------------------------
def __init__(self, parent, ID=wx.ID_ANY, pos=wx.DefaultPosition,
size=wx.DefaultSize, style=0):
"""Constructor"""
wx.ListCtrl.__init__(self, parent, ID, pos, size, style)
listmix.TextEditMixin.__init__(self)
########################################################################
class MyPanel(wx.Panel):
""""""
#----------------------------------------------------------------------
def __init__(self, parent):
"""Constructor"""
wx.Panel.__init__(self, parent)
rows = [("Ford", "Taurus", "1996", "Blue"),
("Nissan", "370Z", "2010", "Green"),
("Porche", "911", "2009", "Red")
]
self.list_ctrl = EditableListCtrl(self, style=wx.LC_REPORT)
self.list_ctrl.InsertColumn(0, "Make")
self.list_ctrl.InsertColumn(1, "Model")
self.list_ctrl.InsertColumn(2, "Year")
self.list_ctrl.InsertColumn(3, "Color")
index = 0
for row in rows:
self.list_ctrl.InsertStringItem(index, row[0])
self.list_ctrl.SetStringItem(index, 1, row[1])
self.list_ctrl.SetStringItem(index, 2, row[2])
self.list_ctrl.SetStringItem(index, 3, row[3])
index += 1
self.list_ctrl.Bind(wx.EVT_LIST_END_LABEL_EDIT, self.OnUpdate)
sizer = wx.BoxSizer(wx.VERTICAL)
sizer.Add(self.list_ctrl, 0, wx.ALL|wx.EXPAND, 5)
self.SetSizer(sizer)
def OnUpdate(self, event):
row_id = event.GetIndex() #Get the current row
col_id = event.GetColumn () #Get the current column
new_data = event.GetLabel() #Get the changed data
cols = self.list_ctrl.GetColumnCount() #Get the total number of columns
rows = self.list_ctrl.GetItemCount() #Get the total number of rows
#Get the changed item use the row_id and iterate over the columns
print (" ".join([self.list_ctrl.GetItem(row_id, colu_id).GetText() for colu_id in range(cols)]))
print "Changed Item:", new_data, "Column:", col_id
#Get the entire listctrl iterate over the rows and the columns within each row
print "\nEntire listctrl BEFORE the update:"
for row in range(rows):
row_data = (" ".join([self.list_ctrl.GetItem(row, col).GetText() for col in range(cols)]))
print row_data
#Set the new data in the listctrl
self.list_ctrl.SetStringItem(row_id,col_id,new_data)
print "\nEntire listctrl AFTER the update:"
#Create a list that can be used to export data to a file
data_for_export=[]
for row in range(rows):
row_data = (" ".join([self.list_ctrl.GetItem(row, col).GetText() for col in range(cols)]))
print row_data
data_for_export.append(row_data) #Add to the exportable data
print "\nData for export"
for row in data_for_export: #Print the data
print row
########################################################################
class MyFrame(wx.Frame):
""""""
#----------------------------------------------------------------------
def __init__(self):
"""Constructor"""
wx.Frame.__init__(self, None, wx.ID_ANY, "Editable List Control")
panel = MyPanel(self)
self.Show()
#----------------------------------------------------------------------
if __name__ == "__main__":
app = wx.App(False)
frame = MyFrame()
app.MainLoop()
编辑：
将 Ford Taurus 1996 Blue 更改为 Ford Taurus 1996 Green 的打印结果
Ford Taurus 1996 Blue
Changed Item: Green Column: 3
Entire listctrl BEFORE the update:
Ford Taurus 1996 Blue
Nissan 370Z 2010 Green
Porche 911 2009 Red
Entire listctrl AFTER the update:
Ford Taurus 1996 Green
Nissan 370Z 2010 Green
Porche 911 2009 Red
Data for export
Ford Taurus 1996 Green
Nissan 370Z 2010 Green
Porche 911 2009 Red
在 Linux OS 上，wxpython '2.8.12.1 (gtk2-unicode)'
当您双击变量或文件中的单元格时，有没有办法保存您所做的编辑？我希望能够编辑单元格并更新我的数据库（一个 .txt 文件）。以我从here中找到的代码为例，一个可编辑的listctrl:
import wx
import wx.lib.mixins.listctrl as listmix
########################################################################
class EditableListCtrl(wx.ListCtrl, listmix.TextEditMixin):
''' TextEditMixin allows any column to be edited. '''
#----------------------------------------------------------------------
def __init__(self, parent, ID=wx.ID_ANY, pos=wx.DefaultPosition,
size=wx.DefaultSize, style=0):
"""Constructor"""
wx.ListCtrl.__init__(self, parent, ID, pos, size, style)
listmix.TextEditMixin.__init__(self)
########################################################################
class MyPanel(wx.Panel):
""""""
#----------------------------------------------------------------------
def __init__(self, parent):
"""Constructor"""
wx.Panel.__init__(self, parent)
rows = [("Ford", "Taurus", "1996", "Blue"),
("Nissan", "370Z", "2010", "Green"),
("Porche", "911", "2009", "Red")
]
self.list_ctrl = EditableListCtrl(self, style=wx.LC_REPORT)
self.list_ctrl.InsertColumn(0, "Make")
self.list_ctrl.InsertColumn(1, "Model")
self.list_ctrl.InsertColumn(2, "Year")
self.list_ctrl.InsertColumn(3, "Color")
index = 0
for row in rows:
self.list_ctrl.InsertStringItem(index, row[0])
self.list_ctrl.SetStringItem(index, 1, row[1])
self.list_ctrl.SetStringItem(index, 2, row[2])
self.list_ctrl.SetStringItem(index, 3, row[3])
index += 1
sizer = wx.BoxSizer(wx.VERTICAL)
sizer.Add(self.list_ctrl, 0, wx.ALL|wx.EXPAND, 5)
self.SetSizer(sizer)
########################################################################
class MyFrame(wx.Frame):
""""""
#----------------------------------------------------------------------
def __init__(self):
"""Constructor"""
wx.Frame.__init__(self, None, wx.ID_ANY, "Editable List Control")
panel = MyPanel(self)
self.Show()
#----------------------------------------------------------------------
if __name__ == "__main__":
app = wx.App(False)
frame = MyFrame()
app.MainLoop()
编辑：Rolf of Saxony 提供的解决方案的打印输出：
Ford Taurus 1996 Blue
Changed Item: Column: 3
Entire listctrl BEFORE the update:
Ford Taurus 1996 Blue
Nissan 370Z 2010 Green
Porche 911 2009 Red
Entire listctrl AFTER the update:
Ford Taurus 1996
Nissan 370Z 2010 Green
Porche 911 2009 Red
Data for export
Ford Taurus 1996
Nissan 370Z 2010 Green
Porche 911 2009 Red
如您所见，如果我像您一样尝试编辑它，则不会显示任何内容。
我假设您想知道如何访问 listctrl 中的数据而不是写入文件。
可编辑的 listctrl 是一个偷偷摸摸的野兽，因为你在编辑后看到的内容实际上并不在数据中，直到你更新它（使用 self.list_ctrl.SetStringItem().
该方法是绑定到 wx.EVT_LIST_END_LABEL_EDIT 并执行已更改的 listctrl 项的更新。
这个例子希望向您展示如何访问更改的项目、访问整个 listctrl、执行更新、访问整个（更新的）listctrl 以及最后创建可导出数据。
每次编辑后打印和输出。实际上，您可以在退出时或通过单击按钮等方式执行数据导出，而不是在每次编辑后执行。
import wx
import wx.lib.mixins.listctrl as listmix
########################################################################
class EditableListCtrl(wx.ListCtrl, listmix.TextEditMixin):
''' TextEditMixin allows any column to be edited. '''
#----------------------------------------------------------------------
def __init__(self, parent, ID=wx.ID_ANY, pos=wx.DefaultPosition,
size=wx.DefaultSize, style=0):
"""Constructor"""
wx.ListCtrl.__init__(self, parent, ID, pos, size, style)
listmix.TextEditMixin.__init__(self)
########################################################################
class MyPanel(wx.Panel):
""""""
#----------------------------------------------------------------------
def __init__(self, parent):
"""Constructor"""
wx.Panel.__init__(self, parent)
rows = [("Ford", "Taurus", "1996", "Blue"),
("Nissan", "370Z", "2010", "Green"),
("Porche", "911", "2009", "Red")
]
self.list_ctrl = EditableListCtrl(self, style=wx.LC_REPORT)
self.list_ctrl.InsertColumn(0, "Make")
self.list_ctrl.InsertColumn(1, "Model")
self.list_ctrl.InsertColumn(2, "Year")
self.list_ctrl.InsertColumn(3, "Color")
index = 0
for row in rows:
self.list_ctrl.InsertStringItem(index, row[0])
self.list_ctrl.SetStringItem(index, 1, row[1])
self.list_ctrl.SetStringItem(index, 2, row[2])
self.list_ctrl.SetStringItem(index, 3, row[3])
index += 1
self.list_ctrl.Bind(wx.EVT_LIST_END_LABEL_EDIT, self.OnUpdate)
sizer = wx.BoxSizer(wx.VERTICAL)
sizer.Add(self.list_ctrl, 0, wx.ALL|wx.EXPAND, 5)
self.SetSizer(sizer)
def OnUpdate(self, event):
row_id = event.GetIndex() #Get the current row
col_id = event.GetColumn () #Get the current column
new_data = event.GetLabel() #Get the changed data
cols = self.list_ctrl.GetColumnCount() #Get the total number of columns
rows = self.list_ctrl.GetItemCount() #Get the total number of rows
#Get the changed item use the row_id and iterate over the columns
print (" ".join([self.list_ctrl.GetItem(row_id, colu_id).GetText() for colu_id in range(cols)]))
print "Changed Item:", new_data, "Column:", col_id
#Get the entire listctrl iterate over the rows and the columns within each row
print "\nEntire listctrl BEFORE the update:"
for row in range(rows):
row_data = (" ".join([self.list_ctrl.GetItem(row, col).GetText() for col in range(cols)]))
print row_data
#Set the new data in the listctrl
self.list_ctrl.SetStringItem(row_id,col_id,new_data)
print "\nEntire listctrl AFTER the update:"
#Create a list that can be used to export data to a file
data_for_export=[]
for row in range(rows):
row_data = (" ".join([self.list_ctrl.GetItem(row, col).GetText() for col in range(cols)]))
print row_data
data_for_export.append(row_data) #Add to the exportable data
print "\nData for export"
for row in data_for_export: #Print the data
print row
########################################################################
class MyFrame(wx.Frame):
""""""
#----------------------------------------------------------------------
def __init__(self):
"""Constructor"""
wx.Frame.__init__(self, None, wx.ID_ANY, "Editable List Control")
panel = MyPanel(self)
self.Show()
#----------------------------------------------------------------------
if __name__ == "__main__":
app = wx.App(False)
frame = MyFrame()
app.MainLoop()
编辑：
将 Ford Taurus 1996 Blue 更改为 Ford Taurus 1996 Green 的打印结果
Ford Taurus 1996 Blue
Changed Item: Green Column: 3
Entire listctrl BEFORE the update:
Ford Taurus 1996 Blue
Nissan 370Z 2010 Green
Porche 911 2009 Red
Entire listctrl AFTER the update:
Ford Taurus 1996 Green
Nissan 370Z 2010 Green
Porche 911 2009 Red
Data for export
Ford Taurus 1996 Green
Nissan 370Z 2010 Green
Porche 911 2009 Red
在 Linux OS 上，wxpython '2.8.12.1 (gtk2-unicode)'