Ok, here's the resource declaration of the ObjectDataProviders (ODPs) in question (may look familair to some of you)

<ObjectDataProvider x:Key="PreOpen" ObjectType="{x:Type src:SingleValueBinder}" />
<ObjectDataProvider ObjectInstance="{StaticResource PreOpen}" MethodName="set_SettingName" x:Key="PreOpenInstance">
<ObjectDataProvider.MethodParameters>
<sys:String>PreOpen</sys:String>
</ObjectDataProvider.MethodParameters>
</ObjectDataProvider>

Here is the XAML that binds to the control

<CheckBox Margin="10,10,10,10" Content="Pre-Open">
<CheckBox.IsChecked>
<Binding Path="Value" Source="{StaticResource PreOpenInstance}" >
</CheckBox.IsChecked>
</CheckBox>

When I execute my app., the Method executes on PreOpenInstance as expected. However, I don't see any source data because the control is bound to the second ODP, whereas the data source resides in the object associated with the first ODP.

I get the BindingExpression from the control (element) and call UpdateTarget, but there is nothing reflected in the UI, presumably because it pointing at the second ODP.

How do I Iink the BindingExpression to the correct source object (ODP 1)

Thanks

Ok, that resolves my previous post on the subject. See here.

http://forums.microsoft.com/MSDN/showpost.aspx?postid=728101&siteid=1

Can the ObjectDataProvider problem that I described in this post be resolved? Just curious at this point.

Yes, indeed, made my day to get this resolved.

My DataBinding implementation appears to be doable without code-behind or too many nasty hacks. And this stuff is starting to sink into my brain a little.

Thanks Sheva for the improved solution and Mike, for putting up with my newbie questions.