如何从 Windows Phone 8.1 中的代码中关闭 MessageDialog [英] How to dismiss a MessageDialog from code in Windows Phone 8.1

问题描述

如何在 Windows Phone 8.1 中以编程方式关闭消息对话框.我使用 showAsync() 创建了对话框.如果这是不可能的，这是创建具有以下属性的自定义消息对话框的最佳方法:

How can I dismiss a Message dialog programmatically in Windows Phone 8.1. I created the dialog using showAsync(). If this is not possible which is the best method to create a custom message dialog with the following properties:

1. It can show test and hold buttons for user interaction.
2. It can be dismissed programmatically
3. Should block the view as a Normal MessageDialog do

推荐答案

使用 ContentDialog 而不是 MessageDialog.这也将允许自定义对话框，因此您无需编写自定义控件，除非您想做一些非常疯狂的事情.

Use a ContentDialog rather than a MessageDialog. This will also allow customizing the dialog so you don't need to write a custom control unless you want to do something really crazy.

在 Windows 上 MessageDialog 是可取消的，但在 Windows Phone 上不可以:

On Windows the MessageDialog is cancellable, but not on Windows Phone:

// Cancel the MessageDialog after 3 seconds on Windows
private async void Button_Click(object sender, RoutedEventArgs e)
{
    MessageDialog md = new MessageDialog("Lorem ipsum dolor sit amet","Message Dialog Title");
    var t = md.ShowAsync();

    await Task.Delay(TimeSpan.FromSeconds(3));

    // Ignored by the Windows Phone MessageDialog
    t.Cancel();
}

您可以在 Windows Phone 上使用类似的代码取消 ContentDialog.如果需要，您可以使用 Visual Studio 的 ContentDialog 模板创建自定义 ContentDialog.

You can cancel ContentDialog with similar code on Windows Phone. You can use Visual Studio's ContentDialog template to create a custom ContentDialog if needed.

private async void Button_Click(object sender, RoutedEventArgs e)
{
    ContentDialog cd = new ContentDialog();
    cd.Title = "Content Dialog";
    cd.PrimaryButtonText = "Close";
    cd.Content = "Lorem ipsum dolor sit amet";
    var t = cd.ShowAsync();

    await Task.Delay(TimeSpan.FromSeconds(3));

    t.Cancel();
}

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