ComboBox's SelectionChanged inside datagrid not firing mvvm

Question

I am using MvvmLight toolkit for my event interactions, i have tried many solutions available but none worked. The combo box inside my data grid's Selection Changed event is not firing Here is my xaml:

i used both InvokeCommandAction and EventToCommand:

EventToCommand Command="{Binding rlcCbSelectionChanged, Mode=OneWay}"
                                                        PassEventArgsToCommand="True"
 InvokeCommandAction Command="{Binding rlcCbSelectionChanged, Mode=OneWay}"

Please tell me what am i missing?? Selection Changed event successfully fires on data grid with same procedure given above.

To help debuging : You can add a breakpoint on the binding and check binding value in "Locals" table. You can read this post for more details : http://10rem.net/blog/2011/04/13/silverlight-5-debugging-bindings-with-xaml-breakpoints — Tonio, May 22 '13 at 07:16
that is great because silverlight 4 did not have that option and unfortunately i am working with SL4 :( — zeeshan, May 22 '13 at 07:20
well, i also tried the SelectedItem, but no effect at all — zeeshan, May 22 '13 at 10:01

score 0 · Answer 1 · answered May 22 '13 at 12:03

Well answer is quite simple i was missing an attribute that is optional that is why i leave this one previously but that causes selection change event not to fire. So i add my view model key as a static resource and it worked :)

So my working xaml look like :

<i:EventTrigger EventName="SelectionChanged">

                                    <i1:InvokeCommandAction Command="{Binding  Path=rlcCbSelectionChanged, Source={StaticResource dvm}}"/>

                                </i:EventTrigger>

ComboBox's SelectionChanged inside datagrid not firing mvvm

1 Answers1