Use the appropriate indexer:
public string selectCell(int Column, int Row)
{
if (CurrentTable.Rows.Count <= Row) // zero based indices
throw new ArgumentException("Invalid number of rows in selectCell", "Row");
if (CurrentTable.Columns.Count <= Column)
throw new ArgumentException("Invalid number of columns in selectCell", "Column");
var row = CurrentTable.Rows[Row];
// remove following check if you want to return "" instead of null
// but then you won't know if it was an empty or an undefined value
if (row.IsNull(Column))
return null;
return row[Column].ToString();
}
You could also use the typed Field
extension method which also supports nullable types, but since you want to use this method for all fields it's better to use Object.ToString
as shown above.