SQL Dynamic Pivot - sql

Question

I have written a dynamic SQL Pivot Query that returns a Quantity per day, the number of columns returned are dynamic based on the number of days between the opening parameters. The issue I am having is that the Columns are not in DateOrder, I am guessing I need some form or Order By to fix this, does anyone have any ideas where I would need to put it in?
SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
--declare and set variables
DECLARE #v_Columns VARCHAR(MAX)
,#v_StartDate DATETIME = GETDATE() - 10
,#v_EndDate DATETIME = GETDATE()
,#v_Query VARCHAR(max)
--select results
SELECT #v_Columns = Coalesce(#v_Columns, '[') + convert(VARCHAR, cast(DateCreated AS DATE), 111) + '],['
FROM (
SELECT DISTINCT cast(DateCreated AS DATE) AS DateCreated
FROM TransactionOriginTracking
) tot
WHERE tot.DateCreated BETWEEN #v_StartDate
AND #v_EndDate
SET #v_Columns = SUBSTRING(#v_Columns, 1, Len(#v_Columns) - 2)
SET #v_Query = 'select
*
from
(
SELECT
cast(Tracking.DateCreated as date) as [Date],
th.TotalQuantity [Quantity]
FROM
TransactionHeader th
Inner JOin TransactionOriginTracking as Tracking on Tracking.TransactionHeaderId = th.Id
and Tracking.WorkflowStageId = 9
Inner Join CompanyDivision on CompanyDivision.Id = th.CompanyDivisionId
WHERE
Tracking.DateCreated between ''' + CONVERT(VARCHAR(50), #v_StartDate, 111) + ''' AND ''' + CONVERT(VARCHAR(50), #v_EndDate, 111) + '''
) as src
Pivot
(
SUM(src.Quantity)
For src.Date IN (' + #v_Columns + ')
) as PivotView'
EXEC (#v_Query)

Answer 1

When you build up your column list, sort by date:
--select results
SELECT
#v_Columns = Coalesce(#v_Columns, '[') + convert(VARCHAR, cast(DateCreated AS DATE), 111) + '],['
FROM
(SELECT DISTINCT
CAST(DateCreated AS DATE) AS DateCreated
FROM
TransactionOriginTracking) tot
WHERE
tot.DateCreated BETWEEN #v_StartDate AND #v_EndDate
ORDER BY
tot.DateCreated