python：除了getString()之外，使用选择框获取数据
我定义了一个具有多个属性的对象..
class thing(object):
def __init__(self, type, name, attrA, attrB, attrC):
self.type = type
self.name = name
self.attrA = attrA
self.attrB = attrB
self.attrC = attrC
假设我有一个事物列表，然后
self.things=[thing('car','fred',1,2,3),
thing('car','george',a,b,c),
thing('truck','bob',6,7,8),
thing('truck','tom',x,y,z)
]
我用该列表中的一些项目填充一个选择框
for each in self.things:
if each.type == 'car':
self.choiceCar.Append(item=each.name)
当用户从下拉列表中选择鲍勃时，我有一个事件
def EvtChoice(self,event):
self.Name = event.GetString()
这捕获选择的名称，但如何获取其他属性？我目前正在做的是，
for each in self.items:
if self.Name == each.name
#Get other things here
我的想法是，如果我的列表变得很大，那么整个列表的循环将变得非常低效并且实际上是不必要的，因为用户已经选择了我想要的特定项目。我认为我应该能够做的是获取所选项目的索引，但我不确定如何做到这一点，或者即使这是正确的方法。
I have defined an object that has several attribute..
class thing(object):
def __init__(self, type, name, attrA, attrB, attrC):
self.type = type
self.name = name
self.attrA = attrA
self.attrB = attrB
self.attrC = attrC
lets say then I have a list of things
self.things=[thing('car','fred',1,2,3),
thing('car','george',a,b,c),
thing('truck','bob',6,7,8),
thing('truck','tom',x,y,z)
]
I then populate a choice box with SOME of the items from that list
for each in self.things:
if each.type == 'car':
self.choiceCar.Append(item=each.name)
When the user selects Bob from the dropdown I have an event for that
def EvtChoice(self,event):
self.Name = event.GetString()
This captures the name of the selection, but how do I get the other attributes? What I am currently doing is
for each in self.items:
if self.Name == each.name
#Get other things here
My thought is that if my list grows large then this loop through my entire list will become very inefficient and really unneeded since the user has already selected the specific item I want. What I think I should be able to do is to get the index of the selected item, but im not sure how to do that, or even if that is the correct way to go about it.
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将数据或对象与 wx.Choice 或 wx.ComboBox 关联起来非常容易。您可以在此处查看使用后者的示例：
http://www.blog.pythonlibrary.org/2010/12/16/wxpython-storing-object-in-combobox-or-listbox-widgets/
基本思想是通过将空列表添加到控件的构造函数中，然后迭代对象并将它们附加到控件。像这样：
然后在小部件的事件处理程序中，您可以通过执行以下操作来取回对象：
Associating data or objects with wx.Choice or wx.ComboBox is pretty easy. You can see an example using the latter here:
http://www.blog.pythonlibrary.org/2010/12/16/wxpython-storing-object-in-combobox-or-listbox-widgets/
The basic idea is to pass an empty list to the control's constructor and then iterate over the objects and Append them to the control. So something like this:
Then in the event handler for the widget, you can get the object back by doing this: