IsDirty turns TRUE after setting as datasource.IsDirty turns TRUE after setting as datasource.
Old forum URL: forums.lhotka.net/forums/t/472.aspx
NelsonF posted on Monday, June 26, 2006
I can load my CSLA object into memory and everything is marked as "old" so IsDirty returns false on my root object immediatly after getting it.
The problem occurs when I bind an object to a BindingSource like so:
propertyBindingSource.DataSource = _property;
The _property object becomes dirty immediately after the above code executes.
Is there a way to bind my CSLA object to a binding source without it going dirty on me?
Is there a way to know which property is being changed to make it dirty?
Thanks,
Nelson
cmellon replied on Tuesday, June 27, 2006
Hi Nelson,
The first thing I would check is that all your property setters compare the value before setting it.
Public Property Identification() As String
Get
Return mItemIdentification
End Get
Set(ByVal value As String)
If value <> mItemIdentification Then
mItemIdentification = value
MarkDirty()
End If
End Set
End Property
It may be that databinding is causing your property setters to be called, and if you don't have a check the value will be set and marked dirty, even if its the same value.
Just a thought, but I would check that first.
Craig
NelsonF replied on Tuesday, June 27, 2006
Thanks, its working now. It turns out a bound lookup combo was being updated from an change event in another control. jh72i replied on Tuesday, June 27, 2006
Could be the same problem a lot of people are wrestling with - that the Binder (BindingContext/BindingManager - i can't remember) is actually calling AddNew on the fly to discover the full schema of your objects.
Do a search of the forum archive and you'll find some stuff.
Copyright (c) Marimer LLC
