New Post: Data Validation Performance

I was under the impression that if you insert rows before you set the values / style etc that it was suppose to improve performance, perhaps I was misinterpreting this.

I altered my code a bit to apply the data validation to all cells at once:

var timer = System.Diagnostics.Stopwatch.StartNew();
            using (XLWorkbook wb = new XLWorkbook(XLEventTracking.Disabled))
            {
                using (var ws = wb.AddWorksheet("MergeCellsWorksheet"))
                {
                    int totalRows = 5000;

                    // Create some ranges
                    ws.Cell("AO1").Value = "A";
                    ws.Cell("AP1").Value = "B";
                    ws.Cell("AQ1").Value = "C";
                    ws.Cell("AR1").Value = "D";
                    ws.Cell("AS1").Value = "E";
                    ws.Cell("AT1").Value = "1";
                    ws.Cell("AU1").Value = "2";

                    var listRange = ws.Range("AO1:AU1");
                    var validationRanges = ws.Range("AA1:AA1");

                    IXLRanges ranges = ws.Ranges("AA1:AA1");
                    ranges = new XLRanges
                    // Insert rows first
                    ws.Row(totalRows).InsertRowsAbove(totalRows);

                    // Insert some values
                    for (int i = 1; i <= totalRows; i++)
                    {
                        ranges.Add(ws.Cell(i, 1));
                        Console.Clear();
                        Console.Write("{0:P1}",((double)i/(double)totalRows));
                    }

                    ranges.SetDataValidation().List(listRange);
                }

                wb.SaveAs(@"C:\Test2.xlsm");
            }
            timer.Stop();
            Console.WriteLine();
            Console.WriteLine("Took {0}s", timer.Elapsed.TotalSeconds);

This seemed to speed it up.