// 无效的写法,图片不会被切换             
                     
                  
     

//解决方案:                    
                     
                  
             

 

public class SwitchSourceConverter : IValueConverter    {        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)        {            //注意 图片不存在或者出错,会造成不停闪烁,因为鼠标一直在图片上,图片则不停的进行更改Source      var path = "3.png";            var  uri = new Uri(path, UriKind.RelativeOrAbsolute);            //返回以下几种方式都可以            //return new BitmapImage(uri);            return path;            return uri;             BitmapImage image = new BitmapImage();            image.BeginInit();            image.UriSource = new Uri(path, UriKind.RelativeOrAbsolute);             image.EndInit();            return image;        }        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)        {            throw new NotImplementedException();        }    }