I have found some interesting things as I examine the code Paul posted:
http://leafe.com/archives/showMsg/349049
dabo.ui.dTextBox(pan, Height=41, DataSource="self.Form",
DataField="MyProp1", RegID="txt1")
I can change DataSource="self.Form" to DataSource=self and it still works.
so something is figuring out that the string needs to converted to a reference,
and it seems to understand "self.form".
Now looking at bd2.py - the version that is Paul's UI with my myClass (end of
message.)
DataSource=myObj works and I get the expected warning:
Dabo Info Log: Tue Apr 24 21:35:00 2007: DataSource '<__main__.myClass object
at
0xb7dbfe2c>' does not inherit from dObject. This may result in unsupported
problems.
DataSource="myObj" does not. I don't get an error, until I type a value and
move focus to another object:
Dabo Error Log: Tue Apr 24 21:08:54 2007: Could not bind to 'myObj.MyProp2'
Reason: 'NoneType' object has no attribute 'MyProp2'
This seems odd. myObj should be created and in scope, so why isn't the
conversion happening?
I can fix it by adding a reference to myObj to the form:
frm = MyForm()
+ frm.myObj1 = myObj
and now: DataSource="self.Form.myObj1" works. (this gives me hope for how to
use a .cdxml, but I am still exploring.)
Not only does the app work, but I am not getting the "DataSource not dObject"
warning. I am not sure if this is a good thing or not. The only thing I
changed was how the object was referenced, so I should be getting the same
warning.
So my main question is why doesn't DataSource="myObj" work?
# bd2.py
# Bind to Data ver 2
# Paul's UI and Carl's myClass
import dabo
dabo.ui.loadUI("wx")
class myClass(object):
def _getMyProp1(self):
return self._myProp1
def _setMyProp1(self, val):
self._myProp1=val
MyProp1 = property(_getMyProp1, _setMyProp1, None, "My Prop #1")
def _getMyProp2(self):
return self._myProp2
def _setMyProp2(self, val):
self._myProp2=val
MyProp2 = property(_getMyProp2, _setMyProp2, None, "My Prop #2")
def __init__(self):
self.MyProp1 = 'a'
self.MyProp2 = 'b'
def swap(self):
self.MyProp1, self.MyProp2 = self.MyProp2, self.MyProp1
def test(self):
print self.MyProp1, self.MyProp2
self.swap()
print self.MyProp1, self.MyProp2
class MyForm(dabo.ui.dForm):
def initProperties(self):
self.Caption = "Bind to BO Demo"
self.Top = 273
self.Height = 118
self.Width = 295
self.Left = 61
def afterInit(self):
pan = dabo.ui.dPanel(self)
dabo.ui.dTextBox(pan, Height=41, DataSource="myObj",
DataField="MyProp1", RegID="txt1" )
dabo.ui.dButton(pan, RegID="butSwap", Caption="Swap")
dabo.ui.dTextBox(pan, Height=41, DataSource=myObj,
DataField="MyProp2", RegID="txt2" )
hs = pan.Sizer = dabo.ui.dSizer("h")
hs.append(self.txt1, "expand")
hs.append(self.butSwap, alignment="Middle")
hs.append(self.txt2, "expand")
self.Sizer.append1x(pan)
self.update()
def onHit_butSwap(self, evt):
myObj.swap()
self.update()
if __name__ == "__main__":
myObj=myClass()
myObj.test()
app = dabo.dApp(MainFormClass=None)
app.setup()
frm = MyForm()
frm.show()
app.start()
Carl K
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