Question : Dropdown list with Category & subcategories out of the same table

Hey,

I'm quite new to access, so this might be a stupid question, or just impossible.

But here I go:
I have a table with categories that looks like:
-catid
-parentcatid
-name

Parentcatid is also a catid and the current category is a subcategory of the parent category.
That way i can have unlimited subcategories.

However i want to have a dropdown list on a form with all categories, and the more a category is nested, the more it is indented.

So like:

Category
subcategory
subsubcategory
subsubcategory
subsubsubcategory
category
subcategory
...


A bit like the 'forum jump' select menu on this forum.

Any idea how to do this?

Thanks in advance,

Answer : Dropdown list with Category & subcategories out of the same table

Here's an example of processing a recordset:

dim rst as recordset
dim sql as string
'construct your SQL here
if level = 0
  sql = '??????'
else
  sql = '??????'
end if

Set rst = currentdb().OpenRecordset(sql, dbOpenDynaset, dbReadOnly)
Do Until rst.EOF
  call RecursiveProcedure(level+1, rst.catid)
  rst.MoveNext
Loop
rst.close



To clear the rowsource
YourComboBox.RowSource = NULL

To concatenate to the rowsource.

YourComboBox.RowSource = nz(YourComboBox.RowSource & ";",YourComboBox.RowSource) & rst.CategoryName