public static object GetCommandParameter(this ImageToggleButton button)
{
var innerButtonField = button.GetType().GetField("innerButton", BindingFlags.Instance | BindingFlags.NonPublic);
var innerButton = innerButtonField.GetValue(button) as Button;
return(innerButton.CommandParameter);
}
public static void SetCommandParameter(this ImageToggleButton button, object commandParameter)
{
var innerButtonField = button.GetType().GetField("toggleInnerButton", BindingFlags.Instance | BindingFlags.NonPublic);
var innerButton = innerButtonField.GetValue(button) as System.Windows.Controls.Primitives.ToggleButton;
innerButton.CommandParameter = commandParameter;
}