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   源码介绍

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using System.ComponentModel;
using System.Collections.ObjectModel;

namespace DataTemplatingSample
{
  public class Task : INotifyPropertyChanged
  {
      private string name;
      private string description;
      private int priority;
      private TaskType type;


      public event PropertyChangedEventHandler PropertyChanged;

      public Task()
      {
      }

      public Task(string name, string description, int priority, TaskType type)
      {
          this.name = name;
          this.description = description;
          this.priority = priority;
          this.type = type;
      }

      public override string ToString()
      {
          return name.ToString();
      }

      public string TaskName
      {
          get { return name; }
          set
          {
              name = value;
              OnPropertyChanged("TaskName");
          }
      }

      public string Description
      {
          get { return description; }
          set
          {
              description = value;
              OnPropertyChanged("Description");
          }
      }

      public int Priority
      {
          get { return priority; }
          set
          {
              priority = value;
              OnPropertyChanged("Priority");
          }
      }

      public TaskType TaskType
      {
          get { return type; }
          set
          {
              type = value;
              OnPropertyChanged("TaskType");
          }
      }

      protected void OnPropertyChanged(string info)
      {
          PropertyChangedEventHandler handler = PropertyChanged;
          if (handler != null)
          {
              handler(this, new PropertyChangedEventArgs(info));
          }
      }
  }
    public class Tasks : ObservableCollection<Task>
    {
        public Tasks(): base()
        {
            Add(new Task("Groceries", "Pick up Groceries and Detergent", 2, TaskType.Home));
            Add(new Task("Laundry", "Do my Laundry", 2, TaskType.Home));
            Add(new Task("Email", "Email clients", 1, TaskType.Work));
            Add(new Task("Clean", "Clean my office", 3, TaskType.Work));
            Add(new Task("Dinner", "Get ready for family reunion", 1, TaskType.Home));
            Add(new Task("Proposals", "Review new budget proposals", 2, TaskType.Work));
        }
    }

    public enum TaskType
    {
        Home,
        Work
    }
}