private void OnSubmitCompleted(SubmitOperation so)
{
if (so.HasError)
{
MessageBox.Show(string.Format("Submit Failed: {0}", so.Error.Message));
so.MarkErrorAsHandled();
}
else
{
QLThuebaoDomainContext dstb = new QLThuebaoDomainContext();
InvokeOperation<System.Nullable<int>> p = dstb.Excute_p_doiaccmytv(txtusr.Text.Trim(), txtusrn.Text.Trim());
p.Completed += new EventHandler(Completed);
}
}