Handle Two-way Binding Of A SqlDataSource On A ListBox?

Jan 4, 2010

If I have two listboxes, with a button between them, how do I update the Items of ListBox2 if ListBox2's items are databound?

<asp:ListBox runat="server" ID="ListBox1" DataSourceID="DataSource1"
DataTextField="Name" DataValueField="ID" SelectionMode="Multiple" />
<asp:Button runat="server" ID="addButton" onClick="addButton_Click" />

[code]...

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Dim SwapN0 As Integer
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Next
End Sub
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End Sub
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End Class

=======================================
Sub UpdateSwap(ByVal valueA As String, ByVal ValueBAs String, ByVal ValueC As Integer, ByVal ValueD As Date)

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