Styling button in MVVM - mvvm

Question

I am writing a small WPF application using MVVM pattern.
I set some style resources for buttons into my main window and I would like them to apply to the buttons into the views. The problem is that some of the buttons are having a style with trigger. So I would like to inherit this style from the generic one
here is my main window code:
<Window.Resources>
<DataTemplate DataType="{x:Type vm:HomeViewModel}">
<views:HomeView/>
</DataTemplate>
<DataTemplate DataType="{x:Type vm:DetailReportViewModel}">
<views:DetailReportView/>
</DataTemplate>
<DataTemplate DataType="{x:Type vm:TransferViewModel}">
<views:TransferView/>
</DataTemplate>
<Style TargetType="{x:Type Button}">
<Setter Property="Margin" Value="5"/>
<Setter Property="MinWidth" Value="30"/>
<Setter Property="Foreground" Value="Red"/>
</Style>
<Style TargetType="{x:Type ComboBox}">
<Setter Property="Margin" Value="5"/>
</Style>
</Window.Resources>
here is the button XAML into my view/usercontrol
<Button Content="Delete" Command="{Binding DeleteReportCommand}">
<Button.Style>
<Style TargetType="{x:Type Button}">
<Style.Triggers>
<DataTrigger Binding="{Binding Mode}">
<DataTrigger.Value>
<vm:Mode>Add</vm:Mode>
</DataTrigger.Value>
<Setter Property="Visibility" Value="Collapsed"/>
</DataTrigger>
<DataTrigger Binding="{Binding Mode}">
<DataTrigger.Value>
<vm:Mode>Edit</vm:Mode>
</DataTrigger.Value>
<Setter Property="Visibility" Value="Visible"/>
</DataTrigger>
</Style.Triggers>
</Style>
</Button.Style>
</Button>
I tried to used BasedOn="{StaticResource {x:Type Button} to inherit but it doesn't seems to work (see img)
I tried with a key name but static resource won't find the key name as it's not on the same view. And BasedOn is not accepting Dynamic resource.
Anything I am missing?
Thank you

Answer 1

You can put all the custom styles in a separate resource dictionary file and you can add it in usercontrol.resources.
Refer this: http://www.codeproject.com/Articles/35346/Using-a-Resource-Dictionary-in-WPF
Or you can put all those in app.xaml (Application.Resources).
Refer this: http://msdn.microsoft.com/en-us/library/system.windows.resourcedictionary.aspx