C# 如何修复ListView数据绑定以显示添加的项？

我正在尝试使用

ItemTemplate

和

TextBlock

控制

ListView

，并将数据绑定到它。但是，该列表不显示添加的项目

以下是我的XAML代码：

 <ListView x:Name="WarrantyCategory_ListView" HorizontalAlignment="Stretch"  Grid.Row="3" VerticalAlignment="Center" SelectionMode="Single" Header="Category:" FontSize="16" Foreground="#FFC7C7C7" Margin="10,0" ItemsSource="{Binding WarrantyCategories}" >
        <ListView.ItemTemplate>
            <DataTemplate>
                <StackPanel Orientation="Vertical">
                    <CheckBox x:Name="Description_CheckBox" IsChecked="{Binding IsChecked, Mode=TwoWay}"/>
                    <TextBlock x:Name="DescriptionItem_TextBlock"     Text="{Binding Category, Mode=TwoWay}" />
                </StackPanel>
            </DataTemplate>
        </ListView.ItemTemplate>
    </ListView>

我的页面代码隐藏：

public AddWarrantyDescriptionPage()
{
    this.InitializeComponent();
    DisplayInformation.AutoRotationPreferences = DisplayOrientations.Portrait;
    InitializeCategoryList();
}

private void InitializeCategoryList()
{
    WarrantyCategories.Add(new WarrantyCategory(false, "Computers"));
    WarrantyCategories.Add(new WarrantyCategory(false, "Mobile"));
    WarrantyCategories.Add(new WarrantyCategory(false, "Music"));
    WarrantyCategories.Add(new WarrantyCategory(false, "Video"));

}

---

检查输出窗口是否存在绑定错误，并确保

WarrantyCategories

是

observedcollection

页面的数据上下文是什么？WarrantyCategories是observedcollection。页面的DataContext-我在代码中没有看到它。但是你不认为它应该起作用吗？ListView将ItemsSource作为ObservableCollection，控件绑定到不同的属性……现在我得到了它：在主页代码中，我应该放：this.DataContext=warryCategoriesList；并如下设置ListViw ItemsSource:ItemsSource=“{Binding}”

public AddWarrantyDescriptionPage()
{
    this.InitializeComponent();
    DisplayInformation.AutoRotationPreferences = DisplayOrientations.Portrait;
    InitializeCategoryList();
}

private void InitializeCategoryList()
{
    WarrantyCategories.Add(new WarrantyCategory(false, "Computers"));
    WarrantyCategories.Add(new WarrantyCategory(false, "Mobile"));
    WarrantyCategories.Add(new WarrantyCategory(false, "Music"));
    WarrantyCategories.Add(new WarrantyCategory(false, "Video"));

}