EventSetter into style DictionaryResource. where I have to put my event code?

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C#

WPF

event

Hi to everybody!

I have the next trouble.

In my WPF application I have some ResourceDictionaries( TextBoxStyle, CheckBoxStyle... and others) and a global ResouceDictionary (ResourceLibrary) where I merge the rest of the ResourceDictionaries.

In my app.xaml I have this xaml code:

<Application.Resources>
        <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <ResourceDictionary Source="pack://application:,,,/Application;component/ResourceDictionaries/ResourceLibrary.xaml"/>
            </ResourceDictionary.MergedDictionaries>
        </ResourceDictionary>
    </Application.Resources>

Hitherto, all the styles have been working perfectly, but now I want to add a PreviewMouseLeftButtonDown event to all TextBoxes in my app so I tried to add this code

<EventSetter Event="MouseLeftButtonDown" Handler="TextBlockMouseLeftButtonDown" />

at TextBoxStyle ResourceDictionary.

What else is needed to make this work? Where I have to add the code for the event? In a new class?

Thanks for all!!