<Window x:Class="WpfApplication2.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525">
    <Grid>
        <ListView VerticalAlignment="Stretch" HorizontalAlignment="Stretch">
            <ListView.View>
                <GridView>
                    <GridViewColumn Header="Элементы">
                        <GridViewColumn.CellTemplate>
                            <DataTemplate>
                                <StackPanel HorizontalAlignment="Stretch" Orientation="Horizontal">
                                <TextBlock Text="Какой-то текст" Margin="3"></TextBlock>
                                <ComboBox x:Name="cmbItems"></ComboBox>
                                </StackPanel>
                            </DataTemplate>
                        </GridViewColumn.CellTemplate>
                    </GridViewColumn>
                </GridView>
            </ListView.View>
        </ListView>
    </Grid>
</Window>