模块中的 IronPython 单击事件触发过程

Question

我在尝试将模块内的过程附加到 TextChanged 事件时遇到错误。

附加事件代码：

import NewMortgage
txtNewMortgageValue = LogicalTreeHelper.FindLogicalNode(_tikitSender,'txtLoanAmount')
txtNewMortgageValue.TextChanged += NewMortgage.evtMortgage_RecalcNet

模块NewMortgage.py：

def evtMortgage_RecalcNet(sender, e):
   MessageBox.Show('test')

Answer 1

我将 LogicalTreeHelper 功能移动到模块中，然后可以访问事件代码。

我还创建了一个全局模块来保存经常使用的变量。

我首先包含模块

 import leanGlobal
 import leanNewMortgage

下面是 leanNewMortgage 模块，在文件底部创建的 class 的实例。

注意这个模块也有 'import leanGlobal' 所以我可以访问全局变量和函数。

###### NEW MORTGAGE FUNCTIONS & VARS ###### 
from System.Windows import MessageBox
from System.Windows import LogicalTreeHelper
import leanGlobal

class NewMortgage(object):
def Init(self):
  self.txtLoanAmount = LogicalTreeHelper.FindLogicalNode(leanGlobal.oGlobal.Sender, 'txtLoanAmount')
  self.txtLenderChaps = LogicalTreeHelper.FindLogicalNode(leanGlobal.oGlobal.Sender, 'txtLenderChaps')
  self.txtCashBack = LogicalTreeHelper.FindLogicalNode(leanGlobal.oGlobal.Sender, 'txtCashBack')
  self.txtRetention = LogicalTreeHelper.FindLogicalNode(leanGlobal.oGlobal.Sender, 'txtRetention')
  self.txtNETAdvance = LogicalTreeHelper.FindLogicalNode(leanGlobal.oGlobal.Sender, 'txtNETAdvance')
  self.AddEvents()

def AddEvents(self):
    self.RemoveEvents()
    self.txtLoanAmount.TextChanged += self.evtMortgage_RecalcNet
    self.txtLenderChaps.TextChanged += self.evtMortgage_RecalcNet
    self.txtCashBack.TextChanged += self.evtMortgage_RecalcNet
    self.txtRetention.TextChanged += self.evtMortgage_RecalcNet

def RemoveEvents(self):
    self.txtLoanAmount.TextChanged -= self.evtMortgage_RecalcNet
    self.txtLenderChaps.TextChanged -= self.evtMortgage_RecalcNet
    self.txtCashBack.TextChanged -= self.evtMortgage_RecalcNet
    self.txtRetention.TextChanged -= self.evtMortgage_RecalcNet

def evtMortgage_RecalcNet(self,sender, e):
    self.RemoveEvents()
    if (self.txtLoanAmount.Text==""):
        self.txtLoanAmount.Text="0"
    if (self.txtLenderChaps.Text==""):
        self.txtLenderChaps.Text="0"
    if (self.txtCashBack.Text==""):
        self.txtCashBack.Text="0"
    if (self.txtRetention.Text==""):
        self.txtRetention.Text="0"
    self.txtNETAdvance.Text=(float(self.txtLoanAmount.Text.replace(',', ''))
            -float(self.txtLenderChaps.Text.replace(',', ''))
            +float(self.txtCashBack.Text.replace(',', ''))
            -float(self.txtRetention.Text.replace(',', ''))).ToString()  
    self.AddEvents()

NewMortgage.txtLoanAmount=object
NewMortgage.txtLenderChaps=object
NewMortgage.txtCashBack=object
NewMortgage.txtRetention=object
NewMortgage.txtNETAdvance=object

oNewMortgage=NewMortgage()

我首先创建全局class：

leanGlobal.oGlobal.Init(_tikitEntity,_tikitMatter.ToString(),_tikitDbAccess,_tikitSender)

然后我调用计算模块(leanNewMortgage.py)，一切正常

 leanNewMortgage.oNewMortgage.Init()

请注意，我还添加了事件，并在触发时暂时删除了它们。这是因为我想要一个中心事件而不是为每个文本框创建一个事件。当事件修改文本框时，需要暂时禁用事件，否则将发生无限循环！

对我来说，与这个问题相关的主要课程是如何创建一个整洁的程序结构。

虽然我是 IronPython 的新手，但我对结构很满意，但很想听听任何评论。

模块中的 IronPython 单击事件触发过程

IronPython Click Event fire procedure in module

events

ironpython

module

click