回答編集履歴

リンク切れ

2022/09/15 09:53

投稿

TN8001

スコア9326

test CHANGED Viewed

@@ -1,397 +1,199 @@
 まずMessageBoxWindowはクライアント領域内を完全に覆うのでしょうから単に、
-```xaml
+```xml
 <Window>
   <Grid>
     <window:MessageBoxWindow />
     <window:LanguageMenuWindow />
   </Grid>
 </Window>
 ```
 こういう形でいいんじゃないでしょうか。
 バインディングをうまく使えば、割とすっきりできそうにも思うのですが、
 > MessageBoxResult flag =  MessageBox.Show("OKですか？");
 こういうイメージとのことでちょっと無理やり感もありますが、今のコードをあまり壊さない形でやってみました。
+---
+MainWindow
+```cs
+using System.Diagnostics;
+using System.Windows;
+namespace Questions227100
+{
+    public partial class MainWindow : Window
+    {
+        public MainWindow() => InitializeComponent();
+        private async void Button_Click(object sender, RoutedEventArgs e)
+        {
+            var result = await MessageBoxWindow.ShowAsync(this, "いいんですね？");
+            if(result == MessageBoxResult.OK) Debug.WriteLine("OK");
+            if(result == MessageBoxResult.Cancel) Debug.WriteLine("Cancel");
+        }
+    }
+}
+```
+```xml
+<Window
+  x:Class="Questions227100.MainWindow"
+  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+  xmlns:window="clr-namespace:Questions227100"
+  Width="800"
+  Height="450">
+  <Grid>
+    <window:MessageBoxWindow x:Name="messageBoxWindow" />
+    <!--<window:LanguageMenuWindow x:Name="LanguageMenuWindow" />-->
+    <!--  ↑の代わりにただのボタン  -->
+    <Button Click="Button_Click" Content="何かを実行" />
+  </Grid>
+</Window>
+```
 ---
-MainWindow
+MessageBoxWindow
-```C#
+```cs
+using System;
+using System.Collections.Generic;
-using System.Diagnostics;
+using System.Linq;
+using System.Threading.Tasks;
 using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Media;
 namespace Questions227100
+{
+    public partial class MessageBoxWindow : UserControl
+    {
+        private TaskCompletionSource<MessageBoxResult> taskCompletionSource;
-{
-    public partial class MainWindow : Window
+        public MessageBoxWindow()
-    {
-        public MainWindow() => InitializeComponent();
-        private async void Button_Click(object sender, RoutedEventArgs e)
         {
-            var result = await MessageBoxWindow.ShowAsync(this, "いいんですね？");
+            InitializeComponent();
-            if(result == MessageBoxResult.OK) Debug.WriteLine("OK");
+            SetValue(Panel.ZIndexProperty, 10);
-            if(result == MessageBoxResult.Cancel) Debug.WriteLine("Cancel");
+            Visibility = Visibility.Hidden;
         }
-    }
-}
-```
-```xaml
-<Window
-  x:Class="Questions227100.MainWindow"
-  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
-  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-  xmlns:window="clr-namespace:Questions227100"
-  Width="800"
-  Height="450">
-  <Grid>
-    <window:MessageBoxWindow x:Name="messageBoxWindow" />
-    <!--<window:LanguageMenuWindow x:Name="LanguageMenuWindow" />-->
-    <!--  ↑の代わりにただのボタン  -->
-    <Button Click="Button_Click" Content="何かを実行" />
-  </Grid>
-</Window>
-```
----
-MessageBoxWindow
-```C#
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Threading.Tasks;
-using System.Windows;
-using System.Windows.Controls;
-using System.Windows.Media;
-namespace Questions227100
-{
-    public partial class MessageBoxWindow : UserControl
-    {
-        private TaskCompletionSource<MessageBoxResult> taskCompletionSource;
+        public static Task<MessageBoxResult> ShowAsync(UIElement element, string message)
-        public MessageBoxWindow()
         {
-            InitializeComponent();
+            var win = Window.GetWindow(element);
+            var msgbox = win.Descendants<MessageBoxWindow>().FirstOrDefault();
+            if(msgbox == null) throw new InvalidOperationException("MessageBoxWindowが見つかりません。");
-            SetValue(Panel.ZIndexProperty, 10);
+            return msgbox.ShowAsync(message);
+        }
+        public Task<MessageBoxResult> ShowAsync(string message)
+        {
+            MessageText.Text = message;
-            Visibility = Visibility.Hidden;
+            Visibility = Visibility.Visible;
+            taskCompletionSource = new TaskCompletionSource<MessageBoxResult>();
+            return taskCompletionSource.Task;
         }
-        public static Task<MessageBoxResult> ShowAsync(UIElement element, string message)
+        private void ButtonOK_Click(object sender, RoutedEventArgs e)
         {
-            var win = Window.GetWindow(element);
+            Visibility = Visibility.Hidden;
-            var msgbox = win.Descendants<MessageBoxWindow>().FirstOrDefault();
+            taskCompletionSource.SetResult(MessageBoxResult.OK);
-            if(msgbox == null) throw new InvalidOperationException("MessageBoxWindowが見つかりません。");
-            return msgbox.ShowAsync(message);
         }
-        public Task<MessageBoxResult> ShowAsync(string message)
+        private void ButtonCancel_Click(object sender, RoutedEventArgs e)
         {
-            MessageText.Text = message;
-            Visibility = Visibility.Visible;
+            Visibility = Visibility.Hidden;
-            taskCompletionSource = new TaskCompletionSource<MessageBoxResult>();
+            taskCompletionSource.SetResult(MessageBoxResult.Cancel);
-            return taskCompletionSource.Task;
         }
-        private void ButtonOK_Click(object sender, RoutedEventArgs e)
-        {
-            Visibility = Visibility.Hidden;
-            taskCompletionSource.SetResult(MessageBoxResult.OK);
-        }
-        private void ButtonCancel_Click(object sender, RoutedEventArgs e)
-        {
-            Visibility = Visibility.Hidden;
-            taskCompletionSource.SetResult(MessageBoxResult.Cancel);
-        }
     }
     //https://blog.xin9le.net/entry/2013/10/29/222336
     internal static class DependencyObjectExtensions
     {
         public static IEnumerable<DependencyObject> Children(this DependencyObject obj)
         {
             if(obj == null) throw new ArgumentNullException(nameof(obj));
             var count = VisualTreeHelper.GetChildrenCount(obj);
             if(count == 0) yield break;
             for(var i = 0; i < count; i++)
             {
                 var child = VisualTreeHelper.GetChild(obj, i);
                 if(child != null) yield return child;
             }
         }
         public static IEnumerable<DependencyObject> Descendants(this DependencyObject obj)
         {
             if(obj == null) throw new ArgumentNullException(nameof(obj));
             foreach(var child in obj.Children())
             {
                 yield return child;
                 foreach(var grandChild in child.Descendants()) yield return grandChild;
             }
         }
         public static IEnumerable<T> Children<T>(this DependencyObject obj)
             where T : DependencyObject => obj.Children().OfType<T>();
         public static IEnumerable<T> Descendants<T>(this DependencyObject obj)
             where T : DependencyObject => obj.Descendants().OfType<T>();
     }
 }
 ```
-```xaml
+```xml
 <UserControl
   x:Class="Questions227100.MessageBoxWindow"
   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:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
   d:DesignHeight="450"
   d:DesignWidth="800"
   Background="#4C000000"
   mc:Ignorable="d">
   <Border
     MaxWidth="500"
     MaxHeight="300"
     VerticalAlignment="Center"
     Background="#FFEEEEEE"
     BorderBrush="#FF0071EF"
     BorderThickness="0,5,0,0">
     <Grid>
       <Grid.RowDefinitions>
         <RowDefinition />
         <RowDefinition Height="Auto" />
       </Grid.RowDefinitions>
       <TextBlock
         x:Name="MessageText"
         Margin="10"
         FontWeight="Bold"
         TextWrapping="Wrap" />
       <StackPanel
         Grid.Row="1"
         HorizontalAlignment="Right"
         Orientation="Horizontal">
         <Button
           MinWidth="90"
           Margin="10"
           Click="ButtonOK_Click"
           Content="OK" />
         <Button
           MinWidth="90"
           Margin="10"
           Click="ButtonCancel_Click"
           Content="Cancel" />
       </StackPanel>
     </Grid>
   </Border>
 </UserControl>
 ```
 ---
 ダイアログだけかっこよくなってもバランスがありますので、
-[mahapps.metro - Dialogs](https://mahapps.com/controls/dialogs.html)
+[MahApps.Metro - Dialogs](https://mahapps.com/docs/dialogs/)
 [Material Design In XAML Toolkit - Dialogs](https://github.com/MaterialDesignInXAML/MaterialDesignInXamlToolkit/wiki/Dialogs)
 こういったものに乗ってしまえば、すでに同様のものが用意されています。
 ただ導入するにもまた調整がいるので、是非にとまでは言えません。