如何更改现有项目的值';wxPython ObjectListView列表中的s字符串\u ctrl
我知道我可以像这样使用如何更改现有项目的值';wxPython ObjectListView列表中的s字符串\u ctrl,python,wxpython,objectlistview-python,Python,Wxpython,Objectlistview Python,我知道我可以像这样使用list\u ctrl.GetStringValueAt()来获取ObjectListView中特定对象的值: class myOLV(ObjectListView): ... code to handle specific events class myPanel(wx.Panel): def __init__(self, parent): wx.Panel.__init__(self, parent) self.lis
list\u ctrl.GetStringValueAt()
来获取ObjectListView
中特定对象的值:
class myOLV(ObjectListView):
... code to handle specific events
class myPanel(wx.Panel):
def __init__(self, parent):
wx.Panel.__init__(self, parent)
self.list_ctrl = myOLV(self, wx.ID_ANY, style=wx.LC_REPORT)
self.setColumns()
# . . .
self.submit_button = wx.Button(self, label="Submit")
# ... add to sizer here, skipping tedious stuff in this example
self.submit_button.Bind(wx.EVT_BUTTON, self.onSubmit)
def setColumns(self):
self.list_ctrl.SetColumns([
ColumnDefn("Column 1", "left", 128, "col1"),
ColumnDefn("Column 2", "left", 128, "col2"),
ColumnDefn("Column 3", "left", 128, "col3")
)]
def onSubmit(self, event):
objects = self.list_ctrl.GetObjects()
for obj in objects:
col1 = self.list_ctrl.GetStringValueAt(obj, 1)
# how could I change the above value here?
col2 = self.list_ctrl.GetStringValueAt(obj, 2)
col3 = self.list_ctrl.GetStringValueAt(obj, 3)
但是,如果我想更改当前循环和列索引中给定obj的字符串的值,该怎么办?文档中似乎没有将当前对象和列索引作为参数的方法,那么我如何才能做到这一点(不删除和重新填充元素)
我从中看到有一个SetValue(modelObjects,preserveSelection=False)
方法,但它设置了要由控件显示的modelObjects列表,这不是我想要做的
是否有SetStringValueAt(modelObject,columnIndex)
方法或解决方法在此上下文中执行相同的操作?您可以通过设置ObjectListView实例的cellEditMode来启用单元格“可编辑性”。类似这样的方法会奏效:
self.list_ctrl.cellEditMode = ObjectListView.CELLEDIT_SINGLECLICK
ObjectListView文档在这里讨论了这一点:
- (旧文件)
- (新文件)
我在以下教程中也提到了这一点:
更新:迭代对象并以编程方式更改它们有点棘手。幸运的是,ObjectListView提供了RefreshObject
,允许我们更改特定对象,然后刷新它。下面是一个示例脚本:
# OLVcheckboxes.py
import wx
from ObjectListView import ObjectListView, ColumnDefn
########################################################################
class Results(object):
""""""
#----------------------------------------------------------------------
def __init__(self, tin, zip_code, plus4, name, address):
"""Constructor"""
self.tin = tin
self.zip_code = zip_code
self.plus4 = plus4
self.name = name
self.address = address
########################################################################
class ProvPanel(wx.Panel):
""""""
#----------------------------------------------------------------------
def __init__(self, parent):
"""Constructor"""
wx.Panel.__init__(self, parent=parent)
mainSizer = wx.BoxSizer(wx.VERTICAL)
self.columns = {0: 'tin',
1: 'zip_code',
2: 'plus4',
3: 'name',
4: 'address'}
self.test_data = [Results("123456789", "50158", "0065", "Patti Jones",
"111 Centennial Drive"),
Results("978561236", "90056", "7890", "Brian Wilson",
"555 Torque Maui"),
Results("456897852", "70014", "6545", "Mike Love",
"304 Cali Bvld")
]
self.resultsOlv = ObjectListView(self, style=wx.LC_REPORT|wx.SUNKEN_BORDER)
self.resultsOlv.cellEditMode = ObjectListView.CELLEDIT_SINGLECLICK
self.setResults()
self.column_cbo = wx.ComboBox(self, value='tin',
choices=self.columns.values())
modify_btn = wx.Button(self, label='Modify Column 1 Cells')
modify_btn.Bind(wx.EVT_BUTTON, self.onModify)
mainSizer.Add(self.resultsOlv, 1, wx.EXPAND|wx.ALL, 5)
mainSizer.Add(self.column_cbo, 0, wx.CENTER|wx.ALL, 5)
mainSizer.Add(modify_btn, 0, wx.CENTER|wx.ALL, 5)
self.SetSizer(mainSizer)
#----------------------------------------------------------------------
def onModify(self, event):
"""
Modify cells
"""
objects = self.resultsOlv.GetObjects()
column = self.column_cbo.GetValue()
for obj in objects:
value = 'Row #%s' % self.resultsOlv.GetIndexOf(obj)
setattr(obj, column, value)
self.resultsOlv.RefreshObject(obj)
#----------------------------------------------------------------------
def setResults(self):
""""""
self.resultsOlv.SetColumns([
ColumnDefn("TIN", "left", 100, "tin"),
ColumnDefn("Zip", "left", 75, "zip_code"),
ColumnDefn("+4", "left", 50, "plus4"),
ColumnDefn("Name", "left", 150, "name"),
ColumnDefn("Address", "left", 200, "address")
])
self.resultsOlv.CreateCheckStateColumn()
self.resultsOlv.SetObjects(self.test_data)
########################################################################
class ProvFrame(wx.Frame):
""""""
#----------------------------------------------------------------------
def __init__(self):
"""Constructor"""
title = "OLV Checkbox Tutorial"
wx.Frame.__init__(self, parent=None, title=title, size=(1024, 768))
panel = ProvPanel(self)
#----------------------------------------------------------------------
if __name__ == "__main__":
app = wx.App(False)
frame = ProvFrame()
frame.Show()
app.MainLoop()
实际上我有这一行,但我想通过编程方式编辑它,不是通过用户操作,而是在遍历每个对象时进行编辑。在给定对象和指定列的情况下,该如何操作?这个答案似乎只适用于允许用户通过单击字段来编辑字段。我的问题是如何在迭代对象时在代码中实现这一点。我更新了一个代码示例,该示例演示了一种通过编程实现的方法,谢谢!我很感激!