View difference between Paste ID: BRiwDfsT and CsaLEbgK

 Skal bruge alle de valgte værdier fra den valgte række i "listV" skal have dem sådan jeg nemt kan få fat i dem og smide dem ind i databasen ( mangler bare at få fat i de valgte værdier )
 
 har fx prøvet:
 C#: var selectedvalue = listV.SelectedValue[0];
 Men det virkede ikke.
 
 Her er min XAML:
-XAML: <ListView x:Name="listV" SelectedValue="{Binding Path=Id}" SelectedValuePath="Id" SelectionMode="Multiple" HorizontalAlignment="Left" Height="200" Margin="10,10,0,0" VerticalAlignment="Top" Width="607">
+XAML: <ListView x:Name="listV" HorizontalAlignment="Left" Height="200" Margin="10,10,0,0" VerticalAlignment="Top" Width="607">
             <ListView.View>
                 <GridView>
                     <GridViewColumn DisplayMemberBinding="{Binding Path=Id}" Header="Besked ID" Width="100" />
                     <GridViewColumn DisplayMemberBinding="{Binding Path=relevantfor}" Header="Relevant for" Width="100" />
                     <GridViewColumn DisplayMemberBinding="{Binding Path=btwdate}" Header="Gælder i perioden" Width="100" />
                     <GridViewColumn DisplayMemberBinding="{Binding Path=message}" Header="Besked" Width="100" />
                     <GridViewColumn DisplayMemberBinding="{Binding Path=messageby}" Header="Slået op af" Width="100" />
                     <GridViewColumn DisplayMemberBinding="{Binding Path=enable}" Header="Synlighed" Width="100" />
                 </GridView>
             </ListView.View>
         </ListView>