我已經做了很多關於這個問題的搜索,但仍然無法弄清楚我的項目出了什麼問題。流程是這樣的:
我想綁定一個視圖模型。該視圖模型包含observablecollection
,其中包含observablecollection
。 現在我可以綁定到兩個observablecollection
同時發展沒有問題,但是當我部署它時,其他observablecollection
內的數據不顯示。在ObservableCollection中綁定ObservableCollection
下面是我的代碼:
項目/型號/ SubProduct.cs
class SubProducts
{
private string subName;
public string SubName
{
get
{
return subName;
}
set
{
subName = value;
}
}
}
項目/型號/ Product.cs
public class Product
{
private string name;
public string Name
{
get
{
return name;
}
set
{
name = value;
}
}
private ObservableCollection<SubProducts> subProductsSaProducts;
internal ObservableCollection<SubProducts> SubProductsSaProducts
{
get
{
return subProductsSaProducts;
}
set
{
subProductsSaProducts = value;
}
}
}
項目/型號/ Category.cs
class Category
{
private string title;
public string Title
{
get
{
return title;
}
set
{
title = value;
}
}
private ObservableCollection<Product> subProducts;
public ObservableCollection<Product> SubProducts
{
get
{
return subProducts;
}
set
{
subProducts = value;
}
}
}
和實現模型此視圖模型: 項目/視圖模型/ CategoryViewModel.cs
class CategoryViewModel : ObservableCollection<Category>
{
public CategoryViewModel()
{
ObservableCollection<Product> pCOl1 = new ObservableCollection<Product>();
ObservableCollection<SubProducts> pCol1Sub = new ObservableCollection<SubProducts>();
SubProducts subP1 = new SubProducts();
subP1.SubName = "Lansang";
SubProducts subP2 = new SubProducts();
subP2.SubName = "Lata";
pCol1Sub.Add(subP1);
pCol1Sub.Add(subP2);
Product p1 = new Product();
p1.Name = "Pothaw";
p1.SubProductsSaProducts = pCol1Sub;
pCOl1.Add(p1);
ObservableCollection<Product> pCOl2 = new ObservableCollection<Product>();
Product p2 = new Product();
p2.Name = "Taklob sa COke";
pCOl2.Add(p2);
Add(new Category()
{
Title = "Didang",
SubProducts = pCOl1
});
Add(new Category()
{
Title = "Plastic",
SubProducts = pCOl2
});
}
}
而且我用的XAML至極視圖模型是頁:
<Page.DataContext>
<vm:CategoryViewModel/>
</Page.DataContext>
<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
<FlipView x:Name="flipView" HorizontalAlignment="Left" VerticalAlignment="Top" Width="360" ItemsSource="{Binding}" Background="#19B0F100">
<FlipView.ItemTemplate>
<DataTemplate>
<StackPanel>
<TextBlock Foreground="Black" FontSize="30" Text="{Binding Title}"/>
<ListView ItemsSource="{Binding SubProducts}" Background="#FF0C0909" Height="600">
<ListView.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Vertical">
<TextBlock Foreground="Red" FontSize="30" Text="{Binding Name}"/>
<ListView ItemsSource="{Binding SubProductsSaProducts}" Margin="30,0,0,0" Background="#FF933131" Height="197" Width="300">
<ListView.ItemTemplate>
<DataTemplate>
<TextBlock Foreground="Yellow" FontSize="20" Text="{Binding SubName}"/>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</StackPanel>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</StackPanel>
</DataTemplate>
</FlipView.ItemTemplate>
</FlipView>
</Grid>
現在預期的數據顯示在開發模式。換句話說,數據僅在未運行應用程序時才顯示。
我的問題是:
- 什麼是錯我的綁定?
- 什麼是正確的方法來做到這一點?
- 爲什麼運行應用程序時數據不顯示?
我是新來的C#WinRT開發,所以任何建議將不勝感激。 下面是截圖:
[從的ObservableCollection不要繼承<>](http://stackoverflow.com/q/21692193/1997232 )。 – Sinatr
我該怎麼做那位先生? – EJL
'ObservableCollection>'很好,'class MyCollection:ObservableCollection - '不是。 –
Sinatr