C# 弹出窗口查看图片以及上传图片

  private void ShowSelectedPicture(string path)
    {
            FileStream fs = File.OpenRead(path); //OpenRead
            int filelength = 0;
            filelength = (int)fs.Length; //获得文件长度 
            Byte[] image = new Byte[filelength]; //建立一个字节数组 
            BitmapImage bitmapImage = new BitmapImage();
            bitmapImage.BeginInit();
            bitmapImage.StreamSource =new MemoryStream(image );
            bitmapImage.EndInit();
            var pictureWindow = new PictureWindow();//自己创建的窗口
            pictureWindow.myImage.Source = bitmapImage;//myImage窗口中的图片空间
            //pictureWindow.myImage.Width = bitmapImage.PixelWidth;
            //pictureWindow.myImage.Height = bitmapImage.PixelHeight;
            pictureWindow.WindowStartupLocation = WindowStartupLocation.CenterScreen;
            pictureWindow.ShowDialog();
   }

  private void MyImage_OnMouseWheel(object sender, MouseWheelEventArgs e)
    {
         double ScaleX = 0;
         double ScaleY = 0;
         double dbl_ZoomX = ((ScaleTransform)(((TransformGroup)(((UIElement)(this.myImage)).RenderTransform)).Children[0])).ScaleX;
         double dbl_ZoomY = ((ScaleTransform)(((TransformGroup)(((UIElement)(this.myImage)).RenderTransform)).Children[0])).ScaleY;
        ((ScaleTransform)(((TransformGroup)(((UIElement)(this.myImage)).RenderTransform)).Children[0])).CenterX = e.GetPosition(this.myImage).X;
        ((ScaleTransform)(((TransformGroup)(((UIElement)(this.myImage)).RenderTransform)).Children[0])).CenterY = e.GetPosition(this.myImage).Y;

        if (e.Delta < 0)
       {
          ScaleX = dbl_ZoomX - 0.1 < 0.2 ? 0.1 : dbl_ZoomX - 0.1;
          ScaleY = dbl_ZoomY - 0.1 < 0.2 ? 0.1 : dbl_ZoomY - 0.1;
       }
     else if (e.Delta > 0)
     {
        ScaleX = dbl_ZoomX + 0.1 > 10.0 ? 10.0 : dbl_ZoomX + 0.1;
        ScaleY = dbl_ZoomY + 0.1 > 10.0 ? 10.0 : dbl_ZoomY + 0.1;
     }

        ((ScaleTransform)(((TransformGroup)(((UIElement)(this.myImage)).RenderTransform)).Children[0])).ScaleX = ScaleX;
       ((ScaleTransform)(((TransformGroup)(((UIElement)(this.myImage)).RenderTransform)).Children[0])).ScaleY = ScaleY;
    }

 C# 上传图片

 private void UploadImage(string Path)
      {  
            FileStream fullfs;
            string pictureName = GetPictureName();
            string pictureFullPath = storePath;// GetPicturePath(rtdto.BusinessIndex, rtdto.ProviderIndex);
            string pictureFullName = pictureFullPath + @"" + pictureName;
            fullfs = new FileStream(pictureFullName, FileMode.Create);
            BinaryWriter fullbw = new BinaryWriter(fullfs);
            fullbw.Write(pidto.PictureData);
            fullbw.Close();
            fullfs.Close();        
      }
  private string GetPicturePath(int businessindex, int providerindex)
        {
            string currentPath = AppDomain.CurrentDomain.BaseDirectory + @"Image";
            if (!System.IO.Directory.Exists(currentPath))
            {
                try
                {
                    System.IO.Directory.CreateDirectory(currentPath);
                }
                catch
                {
                    currentPath = AppDomain.CurrentDomain.BaseDirectory;//创建目录失败，存入根目录中
                }
            }
            string filePath = currentPath + @"" + businessindex + "_" + providerindex;
            if (!System.IO.Directory.Exists(filePath))
            {
                try
                {
                    System.IO.Directory.CreateDirectory(filePath);
                }
                catch
                {
                    filePath = currentPath;//创建目录失败，存入根目录中
                }

            }
            return filePath;
        }
        private string GetPictureName()
        {
            string imageGuid = Guid.NewGuid().ToString() + ".jpg";
            return imageGuid;
        }

 窗口页面代码

<Window x:Class="App.Modules.PictureWindow"
                    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                    xmlns:uiControls="clr-namespace:Allegion.Components.UIControls;assembly=Allegion.Components.UIControls"
                    Title="PictureWindow">

    <ScrollViewer x:Name="scrollViewer"
                  HorizontalScrollBarVisibility="Auto"
                  MouseWheel="ScrollViewer_OnMouseWheel"
                  VerticalScrollBarVisibility="Auto">

        <Image Name="myImage" MouseWheel="MyImage_OnMouseWheel">
            <Image.RenderTransform>
                <TransformGroup>
                    <ScaleTransform ScaleX="1" ScaleY="1" />
                    <SkewTransform />
                    <RotateTransform />
                    <TranslateTransform />
                </TransformGroup>
            </Image.RenderTransform>
        </Image>
    </ScrollViewer>
</Window>