【发布时间】:2017-04-24 18:55:04
【问题描述】:
我正在尝试在窗口右侧显示我的项目。当我第一次初始化我的窗口时,一切正常。我所做的是,我反序列化一个文件并获取我的ObservableCollection<Model.Resources>。我列表中的所有项目都显示在 ListBox 中。
当我进入我的添加资源窗口并添加更多资源时,我将这些对象序列化到一个文件中。添加完成后,我调用了一个名为refresh() 的方法,它反序列化一些文件并更新我的ObservableCollection<Model.Resources>。完成后,ListBox 不会更新,直到我重新启动程序。
具有 ListBox 的窗口的 XAML:
<ListBox x:Name="itemList" Grid.Column="1" HorizontalAlignment="Stretch" Margin="7,23,6,0" Grid.Row="1" VerticalAlignment="Stretch" Background="#324251" ItemsSource="{Binding Path=resources}" FontSize="16" Foreground="Wheat"/>
我的Window类的相关代码:
public partial class GlowingEarth : Window, INotifyPropertyChanged
{
private ObservableCollection<Model.Etiquette> _tags;
private ObservableCollection<Model.Resource> _resources;
private ObservableCollection<Model.Type> _types;
public ObservableCollection<Model.Etiquette> tags
{
get
{
return _tags;
}
set
{
_tags = value;
OnPropertyChanged("tags");
}
}
public ObservableCollection<Model.Resource> resources
{
get
{
return _resources;
}
set
{
_resources = value;
OnPropertyChanged("resources");
}
}
public ObservableCollection<Model.Type> types
{
get
{
return _types;
}
set
{
_types = value;
OnPropertyChanged("types");
}
}
private BinaryFormatter fm;
private FileStream sm = null;
private string path;
public event PropertyChangedEventHandler PropertyChanged;
protected void OnPropertyChanged(string name)
{
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs(name));
}
}
public GlowingEarth()
{
InitializeComponent();
tags = new ObservableCollection<Model.Etiquette>();
resources = new ObservableCollection<Model.Resource>();
types = new ObservableCollection<Model.Type>();
}
private void Window_Loaded(object sender, RoutedEventArgs e)
{
refresh();
}
public void refresh()
{
path = System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "typeList");
if (File.Exists(path))
{
fm = new BinaryFormatter();
sm = File.OpenRead(path);
_types = (ObservableCollection<Model.Type>)fm.Deserialize(sm);
sm.Dispose();
}
else
{
return;
}
path = System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "tagList");
if (File.Exists(path))
{
fm = new BinaryFormatter();
sm = File.OpenRead(path);
_tags = (ObservableCollection<Model.Etiquette>)fm.Deserialize(sm);
sm.Dispose();
}
else
{
return;
}
path = System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "reslist");
if (File.Exists(path))
{
fm = new BinaryFormatter();
sm = File.OpenRead(path);
_resources = (ObservableCollection<Model.Resource>)fm.Deserialize(sm);
sm.Dispose();
}
else
{
return;
}
InitializeComponent();
this.DataContext = this;
}
你能告诉我,到底发生了什么,为什么我的列表没有更新?
【问题讨论】:
标签: c# wpf xaml serialization listbox