导航到GridView中的索引 [英] Navigate to index in GridView

问题描述

您好，



我有一个带有数据源的GridView，其中包含可能无限的项目库。 GridView只需加载所需内容即可轻松处理。我的问题是这个。如果我想快速找到以字母P开头的所有项目，我怎样才能快速导航而不滚动浏览所有内容？幸运的是，我可以知道项目的确切索引，即使它尚未加载到模型中。我需要以某种方式导航到该索引。



我已经通过以下方式实现了这个目标非常可怕：

Hi there,

I have a GridView with a datasource with a potentially infinite library of items. GridView handles this nicely by only loading what is required. My issue is this. If I want to quickly get to all my items that begin with the letter "P", how can I quickly navigate there without scrolling through everything along the way? Fortunately, I can know the exact index of the item, even though it is not yet loaded into the model. I need to somehow navigate to that index.

I have achieved this rather horribly with something along these lines:

Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Low,
                async () =>
                {
                    string letter = "N";
                    object item = null;
                    while (item == null)
                    {
                        item = this.Library.Items.FirstOrDefault(i => (i as Book).Title.StartsWith(letter));
                        this.Library.ScrollIntoView((item ?? this.Library.Items.LastOrDefault()));
                    }
                });

任何想法都会很棒。



谢谢，

Dom

Any ideas would be great.

Thanks,
Dom

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