WPF GridView的列宽度设置为按比例分配

<Grid>
    <Grid>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="3*" />
            <ColumnDefinition Width="2*" />
            <ColumnDefinition Width="2*"/>
            <ColumnDefinition Width="1*"/>
        </Grid.ColumnDefinitions>
        <Grid Grid.Column="0" x:Name="col1"/>
        <Grid Grid.Column="1" x:Name="col2"/>
        <Grid Grid.Column="2" x:Name="col3"/>
        <Grid Grid.Column="3" x:Name="col4"/>
    </Grid>
    <ListView x:Name="listview">
        <ListView.View>
            <GridView>
                <GridViewColumn Header="header1" Width="{Binding ElementName=col1,Path=ActualWidth}"/>
                <GridViewColumn Header="header2" Width="{Binding ElementName=col2,Path=ActualWidth}"/>
                <GridViewColumn Header="header3" Width="{Binding ElementName=col3,Path=ActualWidth}"/>
                <GridViewColumn Header="header4" Width="{Binding ElementName=col4,Path=ActualWidth}"/>
            </GridView>
        </ListView.View>
    </ListView>
</Grid>