回答編集履歴
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見直しキャンペーン中
answer
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グラフをそのように表示するんですか。。。
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通常折れ線グラフの横軸（今回は縦ですが）は時系列等の推移を見るもので、この例には向いていないように思います。
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しかし別質問もありますし、それは置いておきます。
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現状ある程度動いているのであれば、
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```
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<Canvas x:Name="DetailNm" Visibility="{Binding IsDetail}" />
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<Canvas x:Name="Detail" Visibility="{Binding IsDetail}" />
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<!-- IsDetailがboolなら
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<Canvas x:Name="DetailNm" Visibility="{Binding IsDetail, Converter={StaticResource BooleanToVisibilityConverter}}" />
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<Canvas x:Name="Detail" Visibility="{Binding IsDetail, Converter={StaticResource BooleanToVisibilityConverter}}"/>
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-->
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```
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```
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private void BtnDetail_Click(object sender, RoutedEventArgs e)
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{
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``
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グラフをそのように表示するんですか。。。
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通常折れ線グラフの横軸（今回は縦ですが）は時系列等の推移を見るもので、この例には向いていないように思います。
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しかし別質問もありますし、それは置いておきます。
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現状ある程度動いているのであれば、↓のような感じで開閉はできると思います。
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```xml
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<Canvas x:Name="DetailNm" Visibility="{Binding IsDetail}" />
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<Canvas x:Name="Detail" Visibility="{Binding IsDetail}" />
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<!-- IsDetailがboolなら
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<Canvas x:Name="DetailNm" Visibility="{Binding IsDetail, Converter={StaticResource BooleanToVisibilityConverter}}" />
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<Canvas x:Name="Detail" Visibility="{Binding IsDetail, Converter={StaticResource BooleanToVisibilityConverter}}"/>
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-->
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```
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```cs
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private void BtnDetail_Click(object sender, RoutedEventArgs e)
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{
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if ((sender as Button)?.DataContext is Area area)
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{
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foreach (var a in AreaList) a.IsDetail = false;
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area.IsDetail = true;
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}
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}
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```
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`RadioButton`を使えばコードビハインドいらずですみますが、すべて閉じることができなくなるので一長一短ですね。
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---
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この表示にこだわる場合は使えるかどうかちょっとわかりませんが、`DataGrid`の行の詳細やグループ化で畳むような表現はあります。
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[方法: DataGrid コントロールに行の詳細を追加する - WPF .NET Framework | Microsoft Docs](https://docs.microsoft.com/ja-jp/dotnet/desktop/wpf/controls/how-to-add-row-details-to-a-datagrid-control)
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[方法: DataGrid コントロールでデータをグループ化、並べ替え、およびフィルター処理する - WPF .NET Framework | Microsoft Docs](https://docs.microsoft.com/ja-jp/dotnet/desktop/wpf/controls/how-to-group-sort-and-filter-data-in-the-datagrid-control)
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---
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```xml
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<Window
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x:Class="Questions311409.MainWindow"
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xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
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xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
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Width="800"
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Height="450">
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<Window.Resources>
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<BooleanToVisibilityConverter x:Key="BooleanToVisibilityConverter" />
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<Style
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x:Key="ButtonStyle"
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BasedOn="{StaticResource {x:Type ToggleButton}}"
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TargetType="{x:Type RadioButton}" />
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</Window.Resources>
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<Border
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Margin="5"
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Background="LightGray"
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BorderBrush="Black"
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BorderThickness="1">
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<Grid>
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<Grid.RowDefinitions>
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<RowDefinition Height="50" />
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<RowDefinition Height="*" />
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<RowDefinition Height="Auto" />
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</Grid.RowDefinitions>
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<Grid.ColumnDefinitions>
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<ColumnDefinition Width="Auto" />
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<ColumnDefinition Width="*" />
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</Grid.ColumnDefinitions>
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<ScrollViewer
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x:Name="ColumnHeader"
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Grid.Column="1"
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ScrollViewer.HorizontalScrollBarVisibility="Hidden"
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ScrollViewer.VerticalScrollBarVisibility="Hidden">
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<Border BorderBrush="DimGray" BorderThickness="1">
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<StackPanel x:Name="YokoSenPanel" Orientation="Vertical" />
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</Border>
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</ScrollViewer>
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<ScrollViewer
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x:Name="RowHeader"
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Grid.Row="1"
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ScrollChanged="ScrollChanged"
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ScrollViewer.HorizontalScrollBarVisibility="Hidden"
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ScrollViewer.VerticalScrollBarVisibility="Hidden">
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<ItemsControl x:Name="Test2" ItemsSource="{Binding AreaList}">
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<ItemsControl.ItemTemplate>
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<DataTemplate>
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<Border
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Padding="5"
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BorderBrush="DimGray"
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BorderThickness="1">
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<StackPanel>
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<StackPanel Orientation="Horizontal">
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<Label x:Name="AreaName" Content="{Binding TenpoMei}" />
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<RadioButton
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Content="詳細"
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GroupName="Area"
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IsChecked="{Binding IsDetail}"
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Style="{StaticResource ButtonStyle}" />
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</StackPanel>
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<ItemsControl
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Margin="20,0,0,0"
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ItemsSource="{Binding Items}"
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Visibility="{Binding IsDetail, Converter={StaticResource BooleanToVisibilityConverter}}">
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<ItemsControl.ItemTemplate>
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<DataTemplate>
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<TextBlock Text="{Binding ShouhinMei}" />
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</DataTemplate>
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</ItemsControl.ItemTemplate>
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</ItemsControl>
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</StackPanel>
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</Border>
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</DataTemplate>
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</ItemsControl.ItemTemplate>
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</ItemsControl>
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</ScrollViewer>
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<ScrollViewer
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x:Name="AreaSenViewer"
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Grid.Row="1"
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Grid.RowSpan="2"
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Grid.Column="1"
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Background="White"
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ScrollChanged="ScrollChanged"
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ScrollViewer.HorizontalScrollBarVisibility="Auto"
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ScrollViewer.VerticalScrollBarVisibility="Visible">
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<ItemsControl
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x:Name="Test"
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AlternationCount="2"
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ItemsSource="{Binding AreaList}">
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<ItemsControl.ItemTemplate>
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<DataTemplate>
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<Border
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Padding="5"
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BorderBrush="DimGray"
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BorderThickness="1">
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<StackPanel HorizontalAlignment="Left">
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<Grid>
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<!-- 高さ合わせ用ダミー -->
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<Label
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x:Name="dummy"
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Content="{Binding TenpoMei}"
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Visibility="Hidden" />
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<Canvas x:Name="Area" Width="{Binding Goukei}">
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<Line
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x:Name="Line"
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Stroke="SkyBlue"
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StrokeThickness="10"
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X2="{Binding Goukei}"
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Y1="16"
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Y2="16" />
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<TextBlock Text="{Binding Jyuni}" />
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</Canvas>
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</Grid>
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<ItemsControl ItemsSource="{Binding Items}" Visibility="{Binding IsDetail, Converter={StaticResource BooleanToVisibilityConverter}, Mode=OneWay}">
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<ItemsControl.ItemTemplate>
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<DataTemplate>
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<Grid>
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<Canvas x:Name="Detail">
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<Line
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HorizontalAlignment="Center"
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VerticalAlignment="Center"
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Stroke="YellowGreen"
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StrokeThickness="10"
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X2="{Binding Uriage}"
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Y1="11"
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Y2="11" />
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</Canvas>
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<TextBlock Text="{Binding Uriage}" />
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</Grid>
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</DataTemplate>
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</ItemsControl.ItemTemplate>
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</ItemsControl>
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</StackPanel>
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</Border>
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</DataTemplate>
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</ItemsControl.ItemTemplate>
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</ItemsControl>
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</ScrollViewer>
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<!--
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水平スクロールバー表示非表示時の位置合わせ用ダミー
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微妙に表示タイミングがずれるが、ちゃんとやろうとするとかなり面倒
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-->
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<ScrollBar
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Grid.Row="2"
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Width="0"
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Orientation="Horizontal"
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Visibility="{Binding ComputedHorizontalScrollBarVisibility, ElementName=AreaSenViewer, Mode=OneWay}" />
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</Grid>
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</Border>
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</Window>
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```
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```cs
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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using System.ComponentModel;
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using System.Linq;
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using System.Runtime.CompilerServices;
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using System.Windows;
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using System.Windows.Controls;
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namespace Questions311409
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{
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public class Observable : INotifyPropertyChanged
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{
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public event PropertyChangedEventHandler PropertyChanged;
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protected void Set<T>(ref T storage, T value, [CallerMemberName] string propertyName = null)
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{
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if (Equals(storage, value)) return;
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storage = value;
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OnPropertyChanged(propertyName);
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}
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protected void OnPropertyChanged(string propertyName) => PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
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}
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public class Area : Observable
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{
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public string TenpoMei { get; }
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public bool IsDetail { get => _IsDetail; set => Set(ref _IsDetail, value); }
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private bool _IsDetail;
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public string Jyuni { get; }
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public int Goukei => Items.Sum(x => x.Uriage);
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public List<Item> Items { get; } = new List<Item>();
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public Area(string tenpoMei, string jyuni, params Item[] items)
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{
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TenpoMei = tenpoMei;
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Jyuni = jyuni;
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foreach (var item in items) Items.Add(item);
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}
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}
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public class Item
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{
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public string ShouhinMei { get; }
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public int Uriage { get; }
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public Item(string shouhinMei, int uriage)
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{
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ShouhinMei = shouhinMei;
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Uriage = uriage;
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}
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}
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public partial class MainWindow : Window
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{
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public ObservableCollection<Area> AreaList { get; }
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public MainWindow()
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{
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InitializeComponent();
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AreaList = new ObservableCollection<Area>
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{
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new Area("A店","2位", new Item("商品1", 30), new Item("商品2", 100), new Item("商品3", 70)),
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new Area("B店","1位", new Item("商品1", 50), new Item("商品2", 150), new Item("商品3", 100)),
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new Area("C店","3位", new Item("商品1", 10), new Item("商品2", 60), new Item("商品4", 30)),
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};
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DataContext = this;
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}
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private void ScrollChanged(object sender, ScrollChangedEventArgs e)
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{
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if (sender == RowHeader)
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{
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AreaSenViewer.ScrollToVerticalOffset(e.VerticalOffset);
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}
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if (sender == AreaSenViewer)
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{
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RowHeader.ScrollToVerticalOffset(e.VerticalOffset);
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}
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284
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}
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285
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286
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private void BtnDetail_Click(object sender, RoutedEventArgs e)
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287
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{
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288
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if ((sender as Button)?.DataContext is Area area)
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289
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{
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290
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foreach (var a in AreaList) a.IsDetail = false;
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292
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area.IsDetail = true;
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}
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}
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295
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}
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296
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}
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297
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```
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298
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