public IFaceDatabase <T> Open()
{
var dialog = new OpenFileDialog
{
InitialDirectory = SerializeFile == null ? _defaultSerializePath : Path.GetDirectoryName(SerializeFile),
DefaultExt = "xml",
Filter = FileFilter,
Title = "Select file containing saved face database"
};
var result = dialog.STAShowDialog();
// make a backup of the current database in case something goes wrong
var backup = FaceDatabase.Backup();
if (result == DialogResult.OK)
{
try
{
using (var fs = dialog.OpenFile())
{
FaceDatabase.Deserialize(fs);
}
}
catch (Exception exc)
{
MessageBox.Show(
$"Error: An error occured while loading the database from {dialog.FileName}: {Environment.NewLine}{exc}");
// something went wrong -> revert
FaceDatabase.Restore(backup);
}
}
SerializeFile = dialog.FileName;
return(FaceDatabase);
}
