I have a this code:

<ListView Height="238" 
          HorizontalAlignment="Left" 
          Name="listView1" 
          VerticalAlignment="Top" 
          Width="503"
          ItemsSource="{Binding}"
          IsSynchronizedWithCurrentItem="True">
  <ListView.View>
    <GridView>
      <GridView.Columns>
        <GridViewColumn>
          <GridViewColumn.CellTemplate>
            <DataTemplate>
              <CheckBox Tag="{Binding ID}"/>
            </DataTemplate>
          </GridViewColumn.CellTemplate>
        </GridViewColumn>
        <GridViewColumn DisplayMemberBinding="{Binding ID}" Header="ID" />
        <GridViewColumn DisplayMemberBinding="{Binding Name}" Header="Name" />
      </GridView.Columns>
    </GridView>
  </ListView.View>
</ListView>

That produce this window:

Window rendered by code

How do I know how many checkboxes are selected, and get the value Tag of each CheckBox that is selected?

c# wpf binding wpf-controls
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