private void bkg_DoWork(object sender, DoWorkEventArgs e) {
object[] rez = new object[2];
rez[0] = FileOperations.OpenSamples();
if (e.Argument != null) {
string path = (string)e.Argument;
Document dc = FileOperations.ConvertXml<Document>(path);
if (dc == null) {
rez[1] = null;
return;
}
dc.Path = Path.GetFullPath(path);
dc.Clear();
rez[1] = dc;
}
e.Result = rez;
}