Question

I have windows where I have some controls(time period picker):

UPDATED

<ComboBox DisplayMemberPath="{Binding Path=Name}" ItemsSource="{Binding Periods}" Name="timeType" />
<Slider Value="20" Minimum="{Binding SelectedItem.Min, ElementName=timeType}" Maximum="{Binding SelectedItem.Max, ElementName=timeType}" Name="timeSlider" />
<Label Content="{Binding ElementName=timeSlider, Path=Value}" Name="timeValue" />
<Label Content="{Binding ElementName=timeSlider, Path=Minimum}" Name="timeValueMin" />
<Label Content="{Binding ElementName=timeSlider, Path=Maximum}" Name="timeValueMax" />

In window class I did property:

    public class TimePeriodType {
        public string Name { set; get; }
        public int Min { set; get; }
        public int Max { set; get; }
    }

    public List<TimePeriodType> Periods = new List<TimePeriodType>() { 
        new TimePeriodType() { Name="Hours", Max=6, Min=1 }, 
        new TimePeriodType(){ Name="Minutes", Max=59, Min=20 }
    };

And now I want to do somethink to update Slider values when I change value in Groupbox. Is there any possibility to do it?

Already I do it like this:

    private void timeType_SelectionChanged( object sender, SelectionChangedEventArgs e ) {
        var period = Periods.Single(p => p.Name == timeType.SelectedValue.ToString());
        timeSlider.Minimum = period.Min;
        timeSlider.Maximum = period.Max;
    }

But for me it is not great solution.
Maybe you know simplier way to do it?

Answer 1

Ok I found solution.
There should be property with get method:

    public class TimePeriodType {
        public string Name { set; get; }
        public int Min { set; get; }
        public int Max { set; get; }
    }

    List<TimePeriodType> _periods = new List<TimePeriodType>() { 
        new TimePeriodType() { Name="Hours", Max=6, Min=1 }, 
        new TimePeriodType() { Name="Minutes", Max=59, Min=20 }
    };

    public List<TimePeriodType> Periods {
        get { return _periods; }
        set { _periods = value; }
    }

And in addition there should be following binding:

ItemsSource="{Binding Periods, RelativeSource={RelativeSource FindAncestor, AncestorType=Window}}"