DataLab is a compact statistics package aiming at exploratory data analysis. Please visit the DataLab Web site for more information....


NumSelectedColumns

Declaration: ChartBook.Tables[].NumSelectedColumns: integer;
The function NumSelectedColumns returns the number of selected columns of the list view.

Please note that this function scans the entire string array of the list view. NumSelectedColumns should therefore be used carefully in order to avoid degradation of system performance.