private void cargarcosto()
{
ServicioCom21.ServicioCom21 _consulta = new ServicioCom21.ServicioCom21();
DataSet _costo = _consulta.Com21_consulta_costo();
if (_costo.Tables[0].Rows.Count > 0)
{
prosi.Visible = true;
prono.Visible = false;
GvCosto.DataSource = _costo.Tables[0];
GvCosto.DataBind();
}
else
{
prosi.Visible = false;
prono.Visible = true;
}
}