Advanced Filtering

I'm in a bit of a pickle here...


On sheet1, cell b3, I have a validated list of names.
On sheet2, I have a range of data, ColA has the same names as cell b3 on sheet1, and col b has ID #'s.

Sheet 2 looks something like this ::

Bob 123
Bob 231
Bob 312
Mary 423
Mary 234
Mary 342

What I need to happen is when I select a name from the cell b3 on sheet1 is for all of the IDs that match that same name on sheet2 to populate onto sheet1 in the range b6:b30

I understand this is an advanced filter function (don't know if it can be done i vba) but even trying various vlookup combinations, I can't get it to work and would greatly appreciate any assistance anyone could offer.

Albatross
here is an event proce for your sheet1. It only executes the code when the name is changed. It removes the existing list of ID's and then writes the new list - starting in cell B6.

VB Code:

Private Sub Worksheet_Change(ByVal Target As Range)
 
Dim rngLookup As Range
Dim rngOutput As Range
Dim sUserName As String
Dim lRowNum As Long
    'Only run the code if the name is being changed
    If Target.Address = "$B$3" Then
        
        'Disable Events to prevent repeat calls to
        'the _Change event
        Application.EnableEvents = False
        
        'Set range references
        Set rngOutput = ActiveSheet.Range("B6")
        
        With Worksheets(2)
            Set rngLookup = .Range(.Cells(2, 1), .Cells(2, 2).End(xlDown))
        End With
        
        'Clear the Current Output
        With rngOutput
            'Special Hnadler for cases where only
            'one ID is currently used
            '(The .End Method won't work in this case)
            If .Offset(1, 0).Value = "" Then
                .Value = ""
            Else
                'All other cases - clear the output range
                'and all cells immediately under it
                .Resize(.End(xlDown).Row - .Row + 1, 1).Value = ""
            End If
        End With
        
        'Get the name of the user that has been selected
        sUserName = Target.Value
        
        With rngLookup
            
            'Loop through the Lookup range
            For lRowNum = 1 To .Rows.Count
                
                'Looking for matching User Names
                'In the first column
                If .Cells(lRowNum, 1).Value = sUserName Then
                    
                    'Where a match is found - write the
                    'ID to the output range and move down a row
                    rngOutput.Value = .Cells(lRowNum, 2)
                    Set rngOutput = rngOutput.Offset(1, 0)
                End If
                
            Next lRowNum
            
        End With
        
        'Re-enable events
        Application.EnableEvents = True
    End If
    
    'Clear Object Variables
    Set rngLookup = Nothing
    Set rngOutput = Nothing
End Sub