this.ReturnTimePicker.Step = 15;
      this.ReturnTimePicker.TimeTables = Telerik.WinControls.UI.TimeTables.HoursAndMinutesInOneTable;

  this.ReturnTimePicker.Step = 15;
  this.ReturnTimePicker.TimeTables = Telerik.WinControls.UI.TimeTables.HoursAndMinutesInTwoTables;

The thread 0x588c has exited with code 0 (0x0).

 public void AdvancedRowsPopulation(IList<object[]> rows, bool doReset = true)
        {
            var tmr = System.Diagnostics.Stopwatch.StartNew();
            radGridView1.BeginUpdate();
//Have to reset the columns so the object[] matches up again
            string settings = GetGridXml();
            SetGridToXML(BaseGridSettingsXML);
            DetachColumnListeners();
            tmr.Stop();
            Log.Info($"Grid to default took {tmr.ElapsedMilliseconds / 1000.0}s.");

            tmr = System.Diagnostics.Stopwatch.StartNew();
            if (doReset)
            {
                radGridView1.Rows.Clear();
                cachedRows = new List<object[]>();
                lastDataSet = new DataTable();
                foreach (var col in radGridView1.Columns) lastDataSet.Columns.Add(col.HeaderText);
            }
            for (int y=0;y<rows.Count;y++)
            {
                var row =rows[y];
                radGridView1.Rows.Add(row);
                lastDataSet.Rows.Add(row);
            }
            lblDataCount.Text = radGridView1.Rows.Count.ToString();
            tmr.Stop();
            Log.Info($"Grid Row Population took {tmr.ElapsedMilliseconds / 1000.0}s.");

            tmr = System.Diagnostics.Stopwatch.StartNew();
            BaseGridSettingsXML = GetGridXml();
//Set grid back to what the user had last seen
            SetGridToXML(settings);

            radGridView1.EndUpdate();
            tmr.Stop();
            Log.Info($"Grid to user's layout took {tmr.ElapsedMilliseconds / 1000.0}s.");
        }