Is it possible to use the same Resource Style in multiple buttons and change the background image individually on a IsMouseOver event in XAML [duplicate]

Answer 1

The Button class only contains one Dependency Property (DP) for Background, there is no DP for IsMouseOver background.

You have multiple choices, here's a few :

1) Create an Attached Property named IsMouseOverBackground of type Brush and bind to it in your Style.

C#

namespace WpfApp1
{
    public class ButtonHelper
    {
        public static readonly DependencyProperty IsMouseOverBackgroundProperty =
            DependencyProperty.RegisterAttached("IsMouseOverBackground", typeof(Brush), typeof(ButtonHelper), new PropertyMetadata(null));

        public static Brush GetIsMouseOverBackground(DependencyObject obj)
        {
            return (Brush)obj.GetValue(IsMouseOverBackgroundProperty);
        }

        public static void SetIsMouseOverBackground(DependencyObject obj, Brush value)
        {
            obj.SetValue(IsMouseOverBackgroundProperty, value);
        }
    }
}

XAML

Note the use of parentheses in the Binding, that is needed when binding to an Attached Property.

2) Create a IsMouseOverButton class that inherits from Button, add a DP called IsMouseOverBackground of type Brush and bind to it in your Style.

C#

namespace WpfApp1
{
    public class IsMouseOverButton : Button
    {
        public static readonly DependencyProperty IsMouseOverBackgroundProperty =
            DependencyProperty.Register("IsMouseOverBackground", typeof(Brush), typeof(IsMouseOverButton), new PropertyMetadata(null));

        public Brush IsMouseOverBackground
        {
            get { return (Brush)GetValue(IsMouseOverBackgroundProperty); }
            set { SetValue(IsMouseOverBackgroundProperty, value); }
        }
    }
}

XAML