How to populate list box from stored procedure with one parameter?

if you go to "configure data source..." of the listbox, it will take you along a wizard to state the stored proc name, the parameter, and let you set the parameter's source to be a control - which you should set to your textbox.

the point to remember here is that it will run BEFORE the page loads - which means your user didnt have the chance to enter data yet... and therefore - set a default value (in the same step where you connect to the control) - you can set it to something that wouldnt yield any results if you want the list to be empty before the user selected anything

I am sorry, I don't have a wizard, I use VS 2003/VB.NET
Can you give me a code sample?  I need to bind  listbox with store proc.

Thank you very much.
It works, but in VS2003 I don’t have AddWithValue method, I put:
cmdListBox.Parameters.Add(New SqlParameter("@POST_CODE", SqlDbType.NVarChar, 4))
cmdListBox.Parameters("@POST_CODE").Value = TextBox1.Text

This code didn’t work:
 Dim objDataTable As New DataTable
objSQLDataAdapter.Fill(objDataTable)
ddl.DataSource = objDataTable

I put:
Dim objDataTable As New DataTable
sqaListBox.Fill(dstListBox, "objDataTable")  'dstListBox-dataset
Dim tbTable As New DataTable
tbTable = dstListBox.Tables(0)
lstAppYear.DataSource = tbTable

All the rest code is OK,
Thank you