private void RemoveImage_Click(object sender, RoutedEventArgs e)
{
Button button = sender as Button;
int oid = Convert.ToInt32(button.DataContext);
TrainingDataSet.ExpressionRow row = _DataSet.Expression.FindByExpressionOID(oid);
if (row != null)
{
row.Thumbnail = null;
}
}
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
try
{
TableAdapterManager tam = new TableAdapterManager();
TrainingDataSet dataSet = new TrainingDataSet();
tam.ExpressionTableAdapter = new ExpressionTableAdapter();
tam.ExpressionTableAdapter.Fill(dataSet.Expression);
int eoid = System.Convert.ToInt32(value);
if (!DBNull.Value.Equals(eoid))
{
TrainingDataSet.ExpressionRow row = dataSet.Expression.FindByExpressionOID(eoid);
if (!DBNull.Value.Equals(row) && !DBNull.Value.Equals(row.Thumbnail))
{
byte[] imageData = row.Thumbnail;
if (imageData != null && !DBNull.Value.Equals(imageData))
{
byte[] data = (byte[])value;
MemoryStream ms = new MemoryStream(data);
BitmapImage image = new BitmapImage();
image.BeginInit();
image.StreamSource = ms;
image.EndInit();
return(image);
}
}
}
return(null);
}
catch (NullReferenceException)
{
return(null);
}
catch (System.Data.StrongTypingException)
{
return(null);
}
}
private void BrowseImage_Click(object sender, RoutedEventArgs e)
{
Button button = sender as Button;
// Configure save file dialog box
Microsoft.Win32.OpenFileDialog dlg = new Microsoft.Win32.OpenFileDialog();
dlg.DefaultExt = "."; // Default file extension
dlg.Filter = "Imagefiles (*.bmp, *.jpg, *.png, *.tif, *.tiff, *.tga, *.pgm)|*.bmp;*.jpg;*.png;*.tif;*.tiff;*.tga;*.pgm"; // Filter files by extension
dlg.Title = "Load image";
// Show save file dialog box
Nullable <bool> result = dlg.ShowDialog();
// Process save file dialog box results
if (result == true)
{
System.Drawing.Bitmap emoticon = new System.Drawing.Bitmap(dlg.FileName);
const int thumbnailWidth = 50;
const int thumbnailHeight = 50;
System.Drawing.Image.GetThumbnailImageAbort tc = new System.Drawing.Image.GetThumbnailImageAbort(ThumbnailCallback);
System.Drawing.Image thumbnail = emoticon.GetThumbnailImage(thumbnailWidth, thumbnailHeight, tc, IntPtr.Zero);
System.IO.MemoryStream ms = new System.IO.MemoryStream();
thumbnail.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
Console.WriteLine("Length: " + ms.ToArray().Length);
int oid = Convert.ToInt32(button.DataContext);
TrainingDataSet.ExpressionRow row = _DataSet.Expression.FindByExpressionOID(oid);
if (row != null && !DBNull.Value.Equals(row))
{
row.Thumbnail = ms.ToArray();
}
}
}
