>Well...The first problem I had was setting the ItemsSource in XAML. I couldn't figure it out, so I do it in the form constrctor. Seeing more of your code, I think I see a slightly diffferent structure...That does work fine.
>>As far as my ComboBox goes, it is not in a UserControl, it's just a plain UI control in a HeaderedContentControl (I wonder where I learned about that), that is also in a StackPanel, that is also in a Grid. I tried to set ItemsSource="{Binding Path=custs, ElementName=______ (don't know what to put here).My UserControl was basically the same as your Window, it was the root element of the XAML file.
>So, in code-behind, I set the DataContext of gridMain to a Job, and I also set the ItemsSource on the ComboBox to the full list of Customer objects (the "custs" collection). I really want to figure out setting the ItemsSource in XAML, but haven't so far.You can't bind to fields so make this a Property:
public IQueryable<Customer> custs { get; set;}Substitute Window for UserControl:
<Window ... Name="winJobEdit"> ...
Note the element name being used in the binding here:
ItemsSource="{Binding Path=custs, ElementName=winJobEdit}">However, that is not really the issue with the greater goal here of updating the Customer reference in a Job from the XAML binding, so I've just been letting the ItemsSource thing slide for now. But I'm certainly curious to figure it out.Try the code above.
>Also, is your DataStores a collection of strings? I notice you are not having to use DisplayMemberValue and SelectedItemPath. My ItemsSource is a collection of Customer objects, so I have to specify which field on the Customer object is what part. I see that you are using SelectedValue but not the other two.Datastores is a collection of objects. I'm using a DataTemplate instead, but I think either way should work.
<ComboBox.ItemTemplate>
<DataTemplate>
<TextBlock Text="{Binding Path=company}"/>
</DataTemplate>
</ComboBox.ItemTemplate>>So you are able to point the ItemsSource to a Path on your UserControl, but what do I need to point to in order to get at the public custs collection?See above, you can't bind to a field so you have to make it a property.
