private void dataGridTalonarios_SelectedCellsChanged(object sender, SelectedCellsChangedEventArgs e)
        {
            try
            {
                if (dataGridTalonarios.SelectedItem != null)
                {
                    string       ini = "", fin = "";
                    int          cant       = 0;
                    DataGridRow  row        = (DataGridRow)dataGridTalonarios.ItemContainerGenerator.ContainerFromIndex(dataGridTalonarios.SelectedIndex);
                    DataGridCell RowColumn1 = dataGridTalonarios.Columns[1].GetCellContent(row).Parent as DataGridCell;
                    DataGridCell RowColumn2 = dataGridTalonarios.Columns[2].GetCellContent(row).Parent as DataGridCell;
                    DataGridCell RowColumn3 = dataGridTalonarios.Columns[3].GetCellContent(row).Parent as DataGridCell;
                    ini  = ((TextBlock)RowColumn1.Content).Text;
                    fin  = ((TextBlock)RowColumn2.Content).Text;
                    cant = Convert.ToInt32(((TextBlock)RowColumn3.Content).Text);

                    BDTal            tal = new BDTal();
                    string           str = "Esta Seguro que desea eliminar los datos?. Se pederan los datos de las papeletas asignadas";
                    MessageBoxResult mes = MessageBox.Show(str, "Mensaje", MessageBoxButton.YesNo, MessageBoxImage.Question);
                    if (mes == MessageBoxResult.Yes)
                    {
                        if (tal.EliminarRelTalonario(cant, ini, fin))
                        {
                            CargarTablaTal();
                        }
                        else
                        {
                            MessageBox.Show("Error: No se guardo el Talonario");
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show("Error: " + ex.Message);
            }
        }