Question

我试图将Platform :: Collections :: Vector绑定到GridView但我得到Visual Studio的编译时错误：

C3986 'get':the signature of the public member contains a native type 'std::equal_to<T>'
C3986 'get':the signature of the public member contains a native type 'std::equal_to<T>'
C3986 'get':the signature of the public member contains a native type 'std::equal_to<T>'
C3986 'get':the signature of the public member contains a native type 'std::equal_to<T>'

NavigationPage.xaml.h

[Windows::Foundation::Metadata::WebHostHidden]
public ref class NavigationPage sealed
{
public:
    NavigationPage();
    property Platform::Collections::Vector<Platform::String^>^ ImagesProperty
    {
        Platform::Collections::Vector<Platform::String^>^ get()
        {
            if (Images == nullptr) Images = ref new Platform::Collections::Vector<Platform::String^>();
            return this->Images;
        };
    }


private:
    Platform::Collections::Vector<Platform::String^>^ Images;
};

NavigationPage.xaml

<GridView Grid.Row="1" x:Name="View" ItemSource="{x:Bind ImagesProperty}">
        <GridView.ItemTemplate>
            <DataTemplate>

            </DataTemplate>
        </GridView.ItemTemplate>
</GridView>

我已经尝试在Google上搜索，但我发现的大部分示例都是使用C＃编写的，如果是c ++，则会将目标锁定在Windows 8 / 8.1上，因此我决定在此处询问最后一个资源。

目标版本：10586，最低版本：10586

Answer 1

对于那些可能遇到同样问题的人来说，这里是代码，感谢Ed Plunkett发布的链接我能够使它工作，问题是类Platform :: Collections :: Vector（详情在他的链接上）

public:
    NavigationPage();
    property Windows::Foundation::Collections::IObservableVector<Platform::String^>^ ImagesProperty 
    {
        Windows::Foundation::Collections::IObservableVector<Platform::String^>^ get() 
        {
            if (Images == nullptr) Images = ref new Platform::Collections::Vector<Platform::String^>();
            return Images;
        }
    }
private:
    Platform::Collections::Vector<Platform::String^>^ Images;
};

正如您所见，我隐式将Vector类转换为IObservableVector

如何将Platform :: Collections :: Vector绑定到gridview

1 个答案: