消息对话框中的文本输入？内容对话框？

Question

我想知道在 Windows 10 通用应用程序（忘记密码系统）中允许用户将文本输入 MessageDialog 的最佳方法是什么。从我所做的研究来看，使用 MessageDialog 似乎不可能做到这一点，但可以使用 ContentDialog 来完成。到目前为止，我发现 this site which explains roughly how to use the ContentDialog, but not with text input, and and this article on MSDN 确实显示了如何使用带有 ContentDialog 的文本框，但显示的方法对我来说似乎相当复杂。

那么，有人知道执行此操作的任何更简单的方法吗？或者 MSDN 方法是最简单的方法吗？

感谢您的帮助

内森

Answer 1

是的，这是达到您要求的严格的最低要求：

页数：

using System;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;

namespace App1
{
    public sealed partial class MainPage
    {
        public MainPage()
        {
            InitializeComponent();
            Loaded += MainPage_Loaded;
        }

        private async void MainPage_Loaded(object sender, RoutedEventArgs e)
        {
            var dialog1 = new ContentDialog1();
            var result = await dialog1.ShowAsync();
            if (result == ContentDialogResult.Primary)
            {
                var text = dialog1.Text;
            }
        }
    }
}

对话框（代码）：

using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;

namespace App1
{
    public sealed partial class ContentDialog1 : ContentDialog
    {
        public static readonly DependencyProperty TextProperty = DependencyProperty.Register(
            "Text", typeof (string), typeof (ContentDialog1), new PropertyMetadata(default(string)));

        public ContentDialog1()
        {
            InitializeComponent();
        }

        public string Text
        {
            get { return (string) GetValue(TextProperty); }
            set { SetValue(TextProperty, value); }
        }

        private void ContentDialog_PrimaryButtonClick(ContentDialog sender, ContentDialogButtonClickEventArgs args)
        {
        }

        private void ContentDialog_SecondaryButtonClick(ContentDialog sender, ContentDialogButtonClickEventArgs args)
        {
        }
    }
}

对话框 (XAML) :

<ContentDialog x:Class="App1.ContentDialog1"
               xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
               xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
               xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
               xmlns:local="using:App1"
               xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
               x:Name="ContentDialog"
               Title="TITLE"
               PrimaryButtonClick="ContentDialog_PrimaryButtonClick"
               PrimaryButtonText="Button1"
               SecondaryButtonClick="ContentDialog_SecondaryButtonClick"
               SecondaryButtonText="Button2"
               mc:Ignorable="d">

    <Grid>
        <TextBox Text="{Binding ElementName=ContentDialog, Path=Text, Mode=TwoWay}" />
    </Grid>
</ContentDialog>

Answer 2

我使用这样的函数向用户请求文本：

private async Task<string> InputTextDialogAsync(string title)
{
    TextBox inputTextBox = new TextBox();
    inputTextBox.AcceptsReturn = false;
    inputTextBox.Height = 32;
    ContentDialog dialog = new ContentDialog();
    dialog.Content = inputTextBox;
    dialog.Title = title;
    dialog.IsSecondaryButtonEnabled = true;
    dialog.PrimaryButtonText = "Ok";
    dialog.SecondaryButtonText = "Cancel";
    if (await dialog.ShowAsync() == ContentDialogResult.Primary)
        return inputTextBox.Text;
    else
        return "";
}

及其用法：

string text = await InputTextDialogAsync("Title");

Answer 3

代替高度=32，使用这个：

public static async Task<string> ShowAddDialogAsync(string title)
    {
        var inputTextBox = new TextBox { AcceptsReturn = false };
        (inputTextBox as FrameworkElement).VerticalAlignment = VerticalAlignment.Bottom;
        var dialog = new ContentDialog
        {
            Content = inputTextBox,
            Title = title,
            IsSecondaryButtonEnabled = true,
            PrimaryButtonText = "Ok",
            SecondaryButtonText = "Cancel"
        };
        if (await dialog.ShowAsync() == ContentDialogResult.Primary)
            return inputTextBox.Text;
        else
            return "";
    }

消息对话框中的文本输入？内容对话框？

Text input in message dialog? ContentDialog?

c#

xaml

dialog

win-universal-app

windows-10