如何将自定义ObservableCollection元素复制到另一个自定义ObservableCollection?

问题描述 投票:0回答:1

我创建了一个MTObservableCollection类,该类从ObservableCollection派生用于多线程。该函数的外观如下:

public class MTObservableCollection<T> : ObservableCollection<T> where T: LogClassa
    {
        public MTObservableCollection() { }

        public override event NotifyCollectionChangedEventHandler CollectionChanged;
        protected override void OnCollectionChanged(NotifyCollectionChangedEventArgs e)
        {
            NotifyCollectionChangedEventHandler CollectionChanged = this.CollectionChanged;
            if (CollectionChanged != null)
                foreach (NotifyCollectionChangedEventHandler nh in CollectionChanged.GetInvocationList())
                {
                    DispatcherObject dispObj = nh.Target as DispatcherObject;
                    if (dispObj != null)
                    {
                        Dispatcher dispatcher = dispObj.Dispatcher;
                        if (dispatcher != null && !dispatcher.CheckAccess())
                        {
                            dispatcher.BeginInvoke(
                                (Action)(() => nh.Invoke(this,
                                    new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset))),
                                DispatcherPriority.DataBind);
                            continue;
                        }
                    }
                    nh.Invoke(this, e);
                }
        }
    }

这是我的LogClass

public class LogClass : INotifyPropertyChanged
{
    private string timestamp;
    private string title;
    private string message;
    private MTObservableCollection<LogClass> childRowLog = new MTObservableCollection<LogClass>();

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

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

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

    public event PropertyChangedEventHandler PropertyChanged;

    protected void OnPropertyChanged(string name)
    {
         PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(name));
    }
}

因此,如果我有两个MTObservableCollection集合,并且向其中之一添加元素,例如:

public static MTObservableCollection<LogClass> parentLogCollection = new MTObservableCollection<LogClass>();
public MTObservableCollection<LogClass> childLogCollection = new MTObservableCollection<LogClass>();

childLogClass.Add( new LogClass { TimeStamp = "time", Title = "title", Message = "message" } );

现在,如果我想将childLogCollection添加到parentLogCollection,我将执行此操作:

parentLogCollection = new MTObservableCollection<LogClass>(childLogCollection);

我认为我需要在MBObservationCollection类中创建一个实现,应该是

public MTObservableCollection(MTObservableCollection<T> collection)
{

}

我只是不知道要输入什么,我将如何执行?

c# wpf list observablecollection
1个回答
1
投票

尝试像这样更改MTObservableCollection的父项:

public MTObservableCollection(MTObservableCollection<T> collection) : base(collection)
{

}
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