Bind button command to source other than parent's datacontext

I am trying to bind the command of a button inside a datacontext to a RelayCommand in the Main viewmodel. When I use Blend it changes the datacontext of the contain开发者_运维知识库ing grid to point to the Main ViewModel thus breaking the binding of the content of the grid which should be based on the viewmodel of the row etc. I tried the following but the compiler says I am missing an attribute name.

<Button Style="{StaticResource StatusButtonStyle}">
                    <Button.Command>
                        <Binding Source="{StaticResource Locator" Path="{Main.ViewStatusCommand}" Mode="OneWay"                 
                    </Button.Command>
                    <i:Interaction.Triggers>
                        <i:EventTrigger EventName="Click">
                            <i:InvokeCommandAction/>
                        </i:EventTrigger>
                    </i:Interaction.Triggers>
                </Button>

I also tried this:

<Button Style="{StaticResource StatusButtonStyle}" Command="{Binding Main.ViewStatusCommand, Source=StaticResource Locator}">

But that doesn't work either. If I am not alowed to set the source of the command binding, could someone please explain why? Thanks.

You forgot some brackets in the second exemple (and the first lack a /> in the Binding element )

<Button Style={StaticResource StatusButtonStyle}" Command="{Binding Main.ViewStatusCommand, Source={StaticResource Locator}}">

Is it the reason explaining why it don't work? If it's not the case, could you please describe your symptoms (nothing happen when I push the button, there is an Exception (if this is the case, when, and what exception? ) )

If nothing happen when you push the button, look at the debugging console to retreive the Bindings errors.