R – Silverlight ListBox OnMouseOver event

I found another solution here, since I ran into both post...

This is from the Myles answer:

<ListBox.ItemContainerStyle> 
    <Style TargetType="ListBoxItem"> 
        <Setter Property="HorizontalContentAlignment" Value="Stretch"></Setter> 
    </Style> 
</ListBox.ItemContainerStyle> 

This worked for me.

Bind IsSelected to a property in your data class. When the property is changed, execute the logic to update the IsSelected property in other data objects:

<ListBox>
    <ListBox.ItemContainerStyle>
        <Style TargetType="ListBoxItem">
            <Setter Property="IsSelected" Value="{Binding IsSelected}"/>
        </Style>
    </ListBox.ItemContainerStyle>
</ListBox>

Then in your data class you can have something like this:

public bool IsSelected
{
    get { return _isSelected; }
    set
    {
        if (_isSelected != value)
        {
            _isSelected = value;
            OnPropertyChanged("IsSelected");

            UpdateOtherItems();
        }
    }
}

Or you could have the data item raise an IsSelectedChanged event and have the owning class manage the interdependencies of the selection.