从C#文件更新页面中的LongList [英] update LongList in page from c# file

问题描述

你好

我的页面上有一个LongList.该列表是在另一个c#类中创建的.如何更新我的清单?我知道我必须使用INotifyPropertyChanged，但是我找不到任何带有extern类的示例.我正在使用WP8.

解决方案

TwitterSearch 示例代码可以帮助演示首选的MVVM模型，以构建可视化UI的体系结构及其绑定的数据.

在TwitterSearch示例中，_viewModel被声明并在MainPage类中用于访问TwitterViewModel的实例. TwitterViewModel包含数据绑定到UI的集合.

您可以将_viewModel作为方法中的参数传递给另一个类，或者可以在App类中设置_viewModel，将其声明为静态并将其引用为App._viewModel(尽管按照惯例，您可能应删除下划线). /p>

希望这会有所帮助，
标记

Hello,

I have in a page a LongList. The list is created in another c# class. How can I update my list? I know I have to use INotifyPropertyChanged, but I couldn't find any example with an extern class for the list. I'm using WP8.

解决方案

Hi,

The TwitterSearch sample code can be helpful demonstrating a preferred model MVVM for structuring the architecture of the visual UI and the data bound to it.

In the TwitterSearch sample, _viewModel is declared and used in the MainPage class for access to an instance to TwitterViewModel. TwitterViewModel contains the collection that is databound to the UI.

You can pass _viewModel to another class as a parameter in a method, or you can set _viewModel in the App class, declare it static and reference it as App._viewModel (though by convention you probably should remove the underscore).

Hope this helps,
Mark

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