<StackPanel Margin="0,3,10,3">
  <ToggleButton Content="Район..." x:Name="DistrictButton"/>
  <Popup IsOpen="{Binding IsChecked, ElementName=DistrictButton}" StaysOpen="False">
    <Border Style="{StaticResource PopUpBorder}">
      <Grid Width="350" Height="500">
        <Grid.ColumnDefinitions>
          <ColumnDefinition Width="Auto"/>
          <ColumnDefinition/>
          <ColumnDefinition Width="75"/>
          <ColumnDefinition Width="75"/>
        </Grid.ColumnDefinitions>
        <Grid.RowDefinitions>
          <RowDefinition/>
          <RowDefinition Height="Auto"/>
        </Grid.RowDefinitions>
        <dxg:GridControl Grid.ColumnSpan="4" EnableSmartColumnsGeneration="True" ItemsSource="{Binding FilterModel.Districts}">
          <dxg:GridControl.Columns>
            <dxg:GridColumn Header="Наименование" Width="*">
              <dxg:GridColumn.CellTemplate>
                <DataTemplate>
                  <StackPanel Orientation="Horizontal">
                    <CheckBox IsChecked="{Binding Data.IsChecked}" VerticalAlignment="Center" HorizontalAlignment="Left" Margin="3,0,5,0"/>
                    <TextBlock Text="{Binding Data.Name}" HorizontalAlignment="Center"/>
                  </StackPanel>
                </DataTemplate>
              </dxg:GridColumn.CellTemplate>
            </dxg:GridColumn>
          </dxg:GridControl.Columns>
          <dxg:GridControl.View>
            <dxg:TableView/>
          </dxg:GridControl.View>
        </dxg:GridControl>
        <Button Grid.Row="1" Content="Выбрать все" Margin="0,10,0,0" Command="{Binding SelectAllDistrictsCommand}"/>
        <Button Grid.Row="1" Grid.Column="2" Content="ОК" Margin="0,10,0,0" Command="{Binding OKDistrictsCommand}"/>
        <Button Grid.Row="1" Grid.Column="3" Content="Отмена" Margin="5,10,0,0" Command="{Binding CancelDistrictsCommand}"/>
      </Grid>
    </Border>
  </Popup>
</StackPanel>