TreeView data binding in C#/WPF

Question

Can someone help me understand way fo creating xaml code for TreeView component and model like this one:

class Task: ObservableObject
{
    private string _title;

    public string Title {
        get { return _title; }
        set { 
            if (value != _title) {
                _title = value;
                OnPropertyChanged("Title");
            } 
        }
    }

    public override string ToString() {
        return Title;
    }
}

class Tasks:ObservableCollection<Task>
{

}

class Group:ObservableObject
{
    private Tasks _tasksList;

    public Group() {
        _tasksList = new Tasks();
    }

    public Tasks TasksList {
        get{
            return _tasksList;
        }

        set {
            if (value != _tasksList) {
                _tasksList = value;
                OnPropertyChanged("TasksList");
            }
        }
    }
}

class Groups:ObservableCollection<Group>
{

}

All I want to have is View with TreeView component and data like

Group1
   Task 1
   Task 2
Group2
   Task 3
   Task 4

using a InputSource and DataContext...

m0sa · Accepted Answer · 2012-11-20 09:16:12Z

2

You have to use hierarhical data templates.

answered Nov 20, 2012 at 9:16

m0sa

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