{"id":1080,"date":"2010-06-17T22:21:15","date_gmt":"2010-06-17T21:21:15","guid":{"rendered":"http:\/\/soci.hu\/blog\/?p=1080"},"modified":"2010-06-18T08:45:48","modified_gmt":"2010-06-18T07:45:48","slug":"best-practices-how-to-implement-inotifypropertychanged-right","status":"publish","type":"post","link":"https:\/\/soci.hu\/blog\/index.php\/2010\/06\/17\/best-practices-how-to-implement-inotifypropertychanged-right\/","title":{"rendered":"Best Practices: How to implement INotifyPropertyChanged right?"},"content":{"rendered":"

J\u00f3 \u00f6sszefoglal\u00f3<\/a> a t\u00e9m\u00e1ban.<\/p>\n

Update: ez lett a v\u00e9ge:<\/p>\n

using System.ComponentModel;
\nusing System.Threading;
\nusing Krs.Ats.IBNet;<\/p>\n

namespace ATS.IB
\n{
\n \/\/\/ <\/p>\n

\n \/\/\/ Real-time data descriptor for IB tick data
\n \/\/\/ <\/summary>\n

public class MarketData : INotifyPropertyChanged
\n {
\n public Contract IBContract { get; set; }
\n public Ticker Ticker { get; set; }<\/p>\n

private decimal lastPrice;
\n public decimal LastPrice
\n {
\n get { return lastPrice; }
\n set
\n {
\n lastPrice = value;
\n OnPropertyChanged(LastPriceChangedArgs);
\n }
\n }<\/p>\n

private decimal lastBid;
\n public decimal LastBid
\n {
\n get { return lastBid; }
\n set
\n {
\n lastBid = value;
\n OnPropertyChanged(LastBidChangedArgs);
\n }
\n }<\/p>\n

private decimal lastAsk;
\n public decimal LastAsk
\n {
\n get { return lastAsk; }
\n set
\n {
\n lastAsk = value;
\n OnPropertyChanged(LastAskChangedArgs);
\n }
\n }<\/p>\n

private int lastSize;
\n public int LastSize
\n {
\n get { return lastSize; }
\n set
\n {
\n lastSize = value;
\n OnPropertyChanged(LastSizeChangedArgs);
\n }
\n }<\/p>\n

private int lastAskSize;
\n public int LastAskSize
\n {
\n get { return lastAskSize; }
\n set
\n {
\n lastAskSize = value;
\n OnPropertyChanged(LastAskSizeChangedArgs);
\n }
\n }<\/p>\n

private int lastBidSize;
\n public int LastBidSize
\n {
\n get { return lastBidSize; }
\n set
\n {
\n lastBidSize = value;
\n OnPropertyChanged(LastBisSizeChangedArgs);
\n }
\n }<\/p>\n

private static readonly PropertyChangedEventArgs LastPriceChangedArgs = ObservableHelper.CreateArgs(x => x.LastPrice);
\n private static readonly PropertyChangedEventArgs LastBidChangedArgs = ObservableHelper.CreateArgs(x => x.LastBid);
\n private static readonly PropertyChangedEventArgs LastAskChangedArgs = ObservableHelper.CreateArgs(x => x.LastAsk);
\n private static readonly PropertyChangedEventArgs LastSizeChangedArgs = ObservableHelper.CreateArgs(x => x.LastSize);
\n private static readonly PropertyChangedEventArgs LastBisSizeChangedArgs = ObservableHelper.CreateArgs(x => x.LastBidSize);
\n private static readonly PropertyChangedEventArgs LastAskSizeChangedArgs = ObservableHelper.CreateArgs(x => x.LastAskSize);<\/p>\n

private void OnPropertyChanged(PropertyChangedEventArgs e)
\n {
\n var eventHandler = PropertyChanged;
\n if (eventHandler != null)
\n {
\n if (guiSyncContext != SynchronizationContext.Current)
\n {
\n guiSyncContext.CallOnMainThread(OnPropertyChanged, e);
\n }
\n else
\n {
\n eventHandler(this, e);
\n }
\n }
\n }<\/p>\n

public event PropertyChangedEventHandler PropertyChanged;<\/p>\n

private SynchronizationContext guiSyncContext = SynchronizationContext.Current;<\/p>\n

public void SetGuiSyncContext()
\n {
\n guiSyncContext = SynchronizationContext.Current;
\n }
\n }
\n}<\/p>\n","protected":false},"excerpt":{"rendered":"

J\u00f3 \u00f6sszefoglal\u00f3 a t\u00e9m\u00e1ban. Update: ez lett a v\u00e9ge: using System.ComponentModel; using System.Threading; using Krs.Ats.IBNet; namespace ATS.IB { \/\/\/ \/\/\/ Real-time data…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8,4],"tags":[],"class_list":["post-1080","post","type-post","status-publish","format-standard","hentry","category-net","category-szakmai-elet"],"_links":{"self":[{"href":"https:\/\/soci.hu\/blog\/index.php\/wp-json\/wp\/v2\/posts\/1080","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/soci.hu\/blog\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/soci.hu\/blog\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/soci.hu\/blog\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/soci.hu\/blog\/index.php\/wp-json\/wp\/v2\/comments?post=1080"}],"version-history":[{"count":3,"href":"https:\/\/soci.hu\/blog\/index.php\/wp-json\/wp\/v2\/posts\/1080\/revisions"}],"predecessor-version":[{"id":1083,"href":"https:\/\/soci.hu\/blog\/index.php\/wp-json\/wp\/v2\/posts\/1080\/revisions\/1083"}],"wp:attachment":[{"href":"https:\/\/soci.hu\/blog\/index.php\/wp-json\/wp\/v2\/media?parent=1080"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/soci.hu\/blog\/index.php\/wp-json\/wp\/v2\/categories?post=1080"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/soci.hu\/blog\/index.php\/wp-json\/wp\/v2\/tags?post=1080"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}