ObservableCollection + CollectionChanged事件+ ResourceDictionnary [英] ObservableCollection + CollectionChanged event + ResourceDictionnary

问题描述

你好，



我有一个Day.cs课程有这个优点：



< pre lang =c＃> public ObservableCollection ListeTache
{
get {< span class =code-keyword> return this ._ listeTache; }
set
{
_listeTache = value ;
if （PropertyChanged！= null ）
{
PropertyChanged（ 此， new PropertyChangedEventArgs（ ListeTache））;
}
}
}

public string Notes
{
get { return 此 ._笔记; }
set
{
_notes = value ;
if （PropertyChanged！= null ）
{
PropertyChanged（ 此， new PropertyChangedEventArgs（ 注释））;
}
}
}

public bool 已启用
{
获取 {返回 _enabled; }
set
{
_enabled = value ;
if （PropertyChanged！= null ）
{
PropertyChanged（ 此， new PropertyChangedEventArgs（ 启用））;
}
}}

我的Day.cs课程有：

  public  Day（）{
 _listeTache =  new  ObservableCollection（）; 
 _listeTache.CollectionChanged + = ListeTache_Changed; 
} 
 
  private   void  ListeTache_Changed（ object  sender，NotifyCollectionChangedEventArgs e）
 {
 MessageBox.Show（  OK）; 
} 

我绑这样的笔记：

 <   TextBox     IsEnabled   =  {Binding IsEnabled}   文字  =  {Binding Notes，Mode = TwoWay，UpdateSourceTrigger = PropertyChanged}    AcceptsReturn   =  True    TextWrapping   =  Wrap    BorderThickness   =  0    ScrollViewer .VerticalScrollBarVisibility   = 自动   已删除  =  {x：Null}   前景  = 白色    /  >  

我像这样绑定ListeTache：

 <   ListBox     x：名称  = 清单当然Taches    IsEnabled   =  {Binding IsEnabled}    ItemsSource  < span class =code-keyword> =  {Binding ListeTache}    IsSynchronizedWithCurrentItem   =  True    FontSize   =  10    PreviewMouseDown   =  PreviewMouseDownClick_clear    MouseDoubleClick   =  doubleClic >  
 <   Style.Triggers  >  

在我的班级Calendar.cs中我有这个活动：

  private   void  Day_Changed（ object  sender，PropertyChangedEventArgs e）
 {
  if （DayChanged ==  null ）
 {
  return ; 
} 
 
 DayChanged（此， new  DayChangedEventArgs（发件人< span class =code-keyword> as  Day））; 
} 

我在其他项目中使用我的Generic.xaml：

 <  扫描：日历    x：名称  = 日历    DayChanged   =   Calendar_DayChanged   保证金  =  0,82,0,0    Horizo​​ntalContentAlignment   = 中心 < span class =code-keyword> /  >  

当我第一次启动这个应用程序我收到已经在ListeTache中的每个项目的消息确定。



启动后，当我改变礼仪注释时，事件很火，没关系，但是当我在ListeTache中添加或删除元素时，我从未收到过任何事件。



我该怎么办？在此先感谢您的回复。

解决方案

Hello,

I have a Day.cs class who have this propriety :

public ObservableCollection ListeTache
        {
            get { return this._listeTache; }
            set
            {
                _listeTache = value;
                if (PropertyChanged != null)
                {
                    PropertyChanged(this, new PropertyChangedEventArgs("ListeTache"));
                }
            }
        }

        public string Notes
        {
            get { return this._notes; }
            set
            {
                _notes = value;
                if (PropertyChanged != null)
                {
                    PropertyChanged(this, new PropertyChangedEventArgs("Notes"));
                }
            }
        }

public bool Enabled
        {
            get { return _enabled; }
            set
            {
                _enabled = value;
                if (PropertyChanged != null)
                {
                    PropertyChanged(this, new PropertyChangedEventArgs("Enabled"));
                }
            } }

My Day.cs class have :

public Day(){
            _listeTache = new ObservableCollection();
            _listeTache.CollectionChanged += ListeTache_Changed;
        }

        private void ListeTache_Changed(object sender, NotifyCollectionChangedEventArgs e)
        {
            MessageBox.Show("ok"); 
}

I bind Notes like that :

<TextBox IsEnabled="{Binding IsEnabled}" Text="{Binding Notes, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" AcceptsReturn="True" TextWrapping="Wrap" BorderThickness="0" ScrollViewer.VerticalScrollBarVisibility="Auto" removed="{x:Null}" Foreground="White" />

I bind ListeTache like that :

<ListBox x:Name="ListeTaches" IsEnabled="{Binding IsEnabled}" ItemsSource="{Binding ListeTache}" IsSynchronizedWithCurrentItem="True" FontSize="10" PreviewMouseDown="PreviewMouseDownClick_clear" MouseDoubleClick="doubleClic">
<Style.Triggers>

In my class Calendar.cs I have this event :

private void Day_Changed(object sender, PropertyChangedEventArgs e)
        {
            if (DayChanged == null)
            {
                return;
            }

            DayChanged(this, new DayChangedEventArgs(sender as Day));
        }

I use my Generic.xaml in other projet like that :

<Scan:Calendar x:Name="Calendar" DayChanged="Calendar_DayChanged" Margin="0,82,0,0" HorizontalContentAlignment="Center"/>

When I start this app for the first time I receive my message "ok" for each items already in ListeTache.

After starting, When I change the propriety "Notes", the event is fire and it's okay but when I add or Remove an element in my ListeTache I never get an event.

How can I do ? Thanks in advance for your reply guys.

解决方案

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