Binding a ListView field to a WPF nested list

Question

I have the following classes:

class Event {
int eserc {get;set;}
int type {get;set;}
}

class Sequence {
List<Event> events;
int freq {get;set;}
}

As you can see, I have a list of events within the sequence. I have a list of Sequence.
I want to show a ListView using a GridView with a list of sequences. For each sequence, I want to have 2 columns, one with the value of the freq property , and the other should have a list of events related to this sequence. For example: where the first line is associated with the first sequence. The color of the rectangle represents the type of event. The following events are present in the first sequence:

• eserc 1 red
• eserc 2 type red
• eserc 3 green
• eserc 4 ""

---

, , , , .
, ListView:

<ListView Name="resultsList" Grid.Row="5" Grid.Column="1"
                  Grid.ColumnSpan="3">
    <ListView.View>
                <GridView>

            <GridViewColumn Header="Sequence" Width="450"
                                    DisplayMemberBinding="{Binding events}"/>
            <GridViewColumn Header="Frequence" 
                                    DisplayMemberBinding="{Binding freq}"/>
        </GridView>
    </ListView.View>
</ListView>

, , , , .
, , - DataTemplate, , , . , , , , , .

Answer 1

GridViewColumn, (Edit ItemsPanelTemplate). ListView, ListBox, ItemsControl ( ).

Border Event, DataTemplate ItemsControl DataTrigger , xaml :

<ListView Name="ResultsList" 
             ItemsSource="{Binding SequenceCollection}">
        <ListView.View>
            <GridView>
                <GridViewColumn Header="Sequence" Width="450" >
                    <GridViewColumn.CellTemplate>
                        <DataTemplate>
                            <ItemsControl ItemsSource="{Binding Events}">
                                <ItemsControl.ItemsPanel>
                                   <ItemsPanelTemplate>
                                       <StackPanel Orientation="Horizontal"></StackPanel>
                                   </ItemsPanelTemplate>
                               </ItemsControl.ItemsPanel>
                                <ItemsControl.ItemTemplate>
                                    <DataTemplate>
                                        <Border>
                                            <Border.Style>
                                                <Style TargetType="Border">
                                                    <Style.Triggers>
                                                        <DataTrigger Binding="{Binding Type}" Value="red">
                                                            <Setter Property="Background" Value="red"/>
                                                        </DataTrigger>
                                                        <DataTrigger Binding="{Binding Type}" Value="green">
                                                            <Setter Property="Background" Value="Green"/>
                                                        </DataTrigger>
                                                    </Style.Triggers>
                                                </Style>
                                            </Border.Style>
                                            <TextBlock Text="{Binding Eserc, StringFormat='{}{0} '}"></TextBlock>
                                        </Border>
                                    </DataTemplate>
                                </ItemsControl.ItemTemplate>
                            </ItemsControl>
                        </DataTemplate>
                    </GridViewColumn.CellTemplate>
                </GridViewColumn>
                <GridViewColumn Header="Frequence" 
                                DisplayMemberBinding="{Binding Freq}"/>
            </GridView>
        </ListView.View>
    </ListView>

The SequenceCollection:

    private ObservableCollection<Sequence> _sequenceCollection =new ObservableCollection<Sequence>()
    {
        new Sequence(){Events = new ObservableCollection<Event>()
        {
            new Event(){Eserc=1, Type = "red"},
            new Event(){Eserc=2, Type = "red"},
            new Event(){Eserc=3, Type = "green"},
            new Event(){Eserc=4, Type = "red"},
        },Freq = 3}
    };
    public ObservableCollection<Sequence> SequenceCollection
    {
        get { return _sequenceCollection; }
        set
        {
            if (Equals(value, _sequenceCollection)) return;
            _sequenceCollection = value;
            OnPropertyChanged();
        }
    }

:

public class Event
{
    public int Eserc { get; set; }
    public string Type { get; set; }
}

public class Sequence
{
    public ObservableCollection<Event> Events { get; set; }
    public int Freq { get; set; }
}

:

:

• , .
• ObservableCollection List ( ICollectionChanged, )
• INotifyPropertyChanged