Multiple Selection in Listbox when Edit the form

[Waran]

Hi,
I have form where i am using a listbox where we can select multiple values.I
am storing the selected values concatenating with commas(for eg.
"22,21,19,16"). Now i have to update this form, so i have to retrieve these
values and to hightlight the previously selected values.

If HcbTypeRecordsO ld(i) <> "" Then 'HcbTypeRecords Old(i)
values from the database is "22,21,19,1 6"
If Split(HcbTypeRe cordsOld(i), ",").Length > 1 Then
'Checking for multiple selection
Dim j As Integer
For j = 0 To Split(HcbTypeRe cordsOld(i),
",").Length - 1
Dim
strSelectedValu e(Split(HcbType RecordsOld(i), ",").Length ) As String
strSelectedValu e =
Split(HcbTypeRe cordsOld(i), ",")
Dim iSelectedIndex As Integer
iSelectedIndex =
Convert.ToInt32 (strSelectedVal ue(j))
cbTypeRecords.S electedIndex = iSelectedIndex
Next
Else
cbTypeRecords.S electedIndex =
Convert.ToInt32 (HcbTypeRecords Old(i))
End If
End If
How to set all the values as selected? Now "16" only set as selected.

Thanks
Kumar