How to Add item to Dropdownlistbox dynamically?

I have a datawindow(dw_coll_excsel) which has a dropdownlistbox(select_exc_flag). The values of this dropdownlistbox are hardcoded. But on a certain condition, i want to add an item to this dropdownlistbox from the open event of the window. This is what I have given, but i am getting an error. The type of select_exc_flag is Number, but it has display values as strings. How do I incorporate that here.
I want to insert the 17th row with data value as "Acct is coded to rep 96"

This is what I have done:
string s
int row
s = "Acct is coded to rep 96"
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While I would highly recommend switching to a dddw instead of a ddlb, you can modify the values using:

dw.Object.column.Values = "displayval~tactualval/displayval2~tactualval2......"

So, from your example:

string ls_ddlbValues
long ll_flagValue

s = "Acct is coded to rep 96"
   ls_ddlbValues = dw_coll_excsel.object.select_exc_flag.Values
   ls_ddlbValues += '/' + s + '~t' + string(ll_flagValue)
   dw_coll_excsel.object.select_exc_flag.Values = ls_ddlbValues

Remember, just like a dddw the list is the same for every row.  If it changes based on row, you should definitely use a dddw and one of the different techiniques used to filter the dropdown per row.

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taniatangriAuthor Commented:
Thanks a lot! Your solution solved my problem.
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