sort static dropdown using VB.NET asp.net page

Question

I'm populating a dropdown with dates, it's currently showing the dates as

8/1/2022
7/1/2022
6/1/2022
5/1/2022

I want to show the dates as
5/1/2022
6/1/2022
7/1/2022
8/1/2022

protected sub getDates(sender as Object, e as EventArgs)  
dim ddDates as New List(of ListItems)  
for i = 1 to 4  
  beginDate = beginDate.AddMonths(-1)  
  ' formats the dates here from variables creating the dates  
next  
with reportDropDown  
   .DataTextField = "text"  
   .DataValueField = "Value"  
   .DataBind()  
end with  
  
  
end sub  

Answer 1

just use

ddDates.Insert(0, value)

rather than add