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?
尝试像这样更改MTObservableCollection
的父项:
public MTObservableCollection(MTObservableCollection<T> collection) : base(collection)
{
}