public ExportData(BaseTable tbl, WhereClause wc, OrderBy orderBy, BaseColumn[] columns, String header)
{
_exportDataToCSV = new ExportDataToCSV(tbl, wc, orderBy, columns, header);
}
public ExportData(BaseTable tbl, WhereClause wc, OrderBy orderBy)
{
_exportDataToCSV = new ExportDataToCSV(tbl, wc, orderBy);
_exportDataToExcel = new ExportDataToExcel(tbl, wc, orderBy);
}