private void saverBGW_DoWork(object sender, DoWorkEventArgs e)
{
if (currentDocument.Id < 0)
{
if (docsManager.Insert(currentDocument) < 0)
{
e.Result = false;
}
else
{
e.Result = true;
}
}
else
{
e.Result = docsManager.Update(currentDocument);
}
}