/// <summary>
/// The save button_ on click.
/// </summary>
/// <param name="sender">
/// The sender.
/// </param>
/// <param name="e">
/// The e.
/// </param>
private void SaveButton_OnClick(object sender, RoutedEventArgs e)
{
SaveFileDialog saveFileDialog = new SaveFileDialog();
saveFileDialog.Filter = "picture (*.png)|*.png|jpg (*.jpg)|*.jpg";
Files bild = new Files();
bildDataDataContext context = new bildDataDataContext();
if (saveFileDialog.ShowDialog() == true)
{
Rect bounds = VisualTreeHelper.GetDescendantBounds(this.Canvas);
double dpi = 96d;
RenderTargetBitmap rtb = new RenderTargetBitmap(
(int)bounds.Width,
(int)bounds.Height,
dpi,
dpi,
PixelFormats.Default);
DrawingVisual dv = new DrawingVisual();
using (DrawingContext dc = dv.RenderOpen())
{
VisualBrush vb = new VisualBrush(this.Canvas);
dc.DrawRectangle(vb, null, new Rect(new Point(), bounds.Size));
}
rtb.Render(dv);
BitmapEncoder pngEncoder = new PngBitmapEncoder();
pngEncoder.Frames.Add(BitmapFrame.Create(rtb));
try
{
MemoryStream ms = new System.IO.MemoryStream();
pngEncoder.Save(ms);
ms.Close();
File.WriteAllBytes(saveFileDialog.FileName, ms.ToArray());
Binary bildData = ms.ToArray();
bild.Image = bildData;
bild.Id = context.Files.ToArray().Last().Id + 1;
context.Files.InsertOnSubmit(bild);
context.SubmitChanges();
}
catch (Exception err)
{
MessageBox.Show(err.ToString(), "Error", MessageBoxButton.OK, MessageBoxImage.Error);
}
}
}
/// <summary>
/// The button base_ on click.
/// </summary>
/// <param name="sender">
/// The sender.
/// </param>
/// <param name="e">
/// The e.
/// </param>
private void ButtonBase_OnClick(object sender, RoutedEventArgs e)
{
bildDataDataContext context = new bildDataDataContext();
Console.WriteLine("vorher");
var query = from b in context.Files select b;
foreach (var v in query)
{
Console.WriteLine(v);
}
Console.WriteLine("nachher");
}
/// <summary>
/// The load button_ on click.
/// </summary>
/// <param name="sender">
/// The sender.
/// </param>
/// <param name="e">
/// The e.
/// </param>
private void LoadButton_OnClick(object sender, RoutedEventArgs e)
{
ImageBrush brush = new ImageBrush();
bildDataDataContext context = new bildDataDataContext();
MemoryStream ms = new MemoryStream(context.Files.ToArray().Last().Image.ToArray());
BitmapImage gemalde = new BitmapImage();
ms.Position = 0;
gemalde.BeginInit();
gemalde.StreamSource = ms;
gemalde.CacheOption = BitmapCacheOption.OnLoad;
gemalde.EndInit();
brush.ImageSource = gemalde;
this.Canvas.Background = brush;
}