private void AuthorsDataGrid_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
DataGrid dataGrid = sender as DataGrid;
DataGridRow row = (DataGridRow)dataGrid.ItemContainerGenerator.ContainerFromIndex(dataGrid.SelectedIndex);
DataGridCell RowColumn = dataGrid.Columns[1].GetCellContent(row).Parent as DataGridCell;
string LastName = ((TextBlock)RowColumn.Content).Text;
RowColumn = dataGrid.Columns[2].GetCellContent(row).Parent as DataGridCell;
string FirstName = ((TextBlock)RowColumn.Content).Text;
DataRow[] _authors = _authorTableModel.FindAuthors(LastName, FirstName);
_selectedAuthor = _authorTableModel.ConvertDataRowToAuthor(_authors[0]);
}
private void PreShowSetSelectAuthorsListBox(object sender, RoutedEventArgs e)
{
_authors = _authorTable.FindAuthors(TB_SelectAuthorLastName.Text, TB_SelectAuthorFirstName.Text);
AddRowsToListBox();
}