如何处理 LongListMultiSelector 的选定项? [英] How to handle a selected item of LongListMultiSelector?

问题描述

我希望能够:

• 在用户点击一个项目时打开邮件.
• 并在用户选择多封电子邮件时删除多封电子邮件

所以我选择了LongListMultiSelector.

在内置的 LongListSelector 中，我像这样处理 SelectionChanged 事件:

In built in LongListSelector, I handle the SelectionChanged event like this:

private void mails_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
    var selectedItem = mailsLongListSelector.SelectedItem as Mail;

    if (selectedItem == null)
        return;
    ...
    mailsLongListSelector.SelectedItem = null;
}

我想要 wptoolkit 的 LongListMultiSelector 中的功能.就像您选择一封电子邮件打开并阅读一样.

I want exactly like that functionality in wptoolkit's LongListMultiSelector. like when you select an email to open and read it.

LongListMultiSelector 的 SelectionChanged 在您点击项目左侧并出现复选框时发生.这不是我想要的.

LongListMultiSelector's SelectionChanged occurs when you tap left side of an item and checkboxes appear. this is not what I want.

问题是:当用户点击 LongListMultiSelector 的一项时，我如何执行某些操作?谢谢.

The Question is: How can I perform something when the user taps on one item of LongListMultiSelector? thanks.

推荐答案

你可以试试这个.如果这是您的 LongListSelector

You could try this. If this is your LongListSelector

<tkit:LongListMultiSelector Name="longlist" SelectionChanged="longlist_SelectionChanged">
    <tkit:LongListMultiSelector.ItemTemplate>
        <DataTemplate>
            <TextBlock Text="{Binding Title}" FontSize="32" Tap="TextBlock_Tap"/>
        </DataTemplate>
    </tkit:LongListMultiSelector.ItemTemplate>
</tkit:LongListMultiSelector>

并且它有一个 itemtemplate，你可以检测对 item 的点击.

and it has an itemtemplate, you can detect a tap on item.

private void TextBlock_Tap(object sender, System.Windows.Input.GestureEventArgs e)
{
    var itemTapped = (sender as FrameworkElement).DataContext as Book;
}

仍然有一个选择改变

private void longlist_SelectionChanged(object sender, SelectionChangedEventArgs e)
{

}

这篇关于如何处理 LongListMultiSelector 的选定项?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！