dropdownlist on select

[§tudz]

Hi,

I want to populate a dropdownlistwith information from my database, when a selection is made in another dropdownlist

this is the code I want to execute:

Dim myConnection As New OleDBConnection(ConnectionString)
    ' creates a dataset to store the information gained form the database
    Dim DsMembers As Dataset = New DataSet()
    Dim CommandText As String = "SELECT * from tbl_crews WHERE Name= '" & cbo_Crew.SelectedItem.Text & "'"
    Dim myAdapter As OleDBDataAdapter = New OleDBDataAdapter(CommandText, myConnection)
        myAdapter.Fill(DsMembers, "tbl_crews")
 
Dim I as integer
 
try
 
 For I = 0 To DsMembers.Tables(0).rows.count-1
       Dim strtemp as String = DsMembers.tables(0).rows(I).item(0).tostring & " - " & _
       DsMembers.tables(0).rows(I).item(1).tostring
 
       cbo_member.items.add(strtemp)
 
    Next I
    Catch ex as Exception
          lbl_Message.text = ex.ToString()
    Finally
 
    End Try

problem is that I don't know which command to put it under as it doesn't work on:

Sub cbo_Crew_SelectedIndexChanged(sender As Object, e As EventArgs)

and suggestions?
Thanks

[Fishcake]

Putting the code in SelectedIndexChanged shouldn't be a problem.

so firstly 2 simple questions
1. Is autopostback set to true on the dropdown list? otherwise the event won't fire until another postback is performed.
2. I notice there is no 'handles cbo_Crew.selectedIndexChanged' at the end of this line:

Sub cbo_Crew_SelectedIndexChanged(sender As Object, e As EventArgs)

so in this case do you have

OnSelectedIndexChanged="cbo_Crew_SelectedIndexChanged"

set where you declare the dropdownlist?

[§tudz]

the problem was I hadn't set 'postback' lol oops