回答編集履歴
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見直しキャンペーン中
test
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@@ -1,341 +1,171 @@
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解決されているので蛇足ですが、文字列から`Brush`への変換は`BrushConverter`が用意されています。
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[BrushConverter クラス (System.Windows.Media) | Microsoft Docs](https://docs.microsoft.com/ja-jp/dotnet/api/system.windows.media.brushconverter)
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表示される文字列を日本語にしたり色見本を出したくなったときに、dodox86さんの回答のように辞書等で持っておくと楽なので私もこうしますね。
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```x
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```xml
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<Window
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x:Class="Questions344646.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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xmlns:System="clr-namespace:System;assembly=mscorlib"
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Width="600"
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Height="400"
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Background="LightGray">
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<Window.Resources>
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<x:Array x:Key="Colors" Type="System:String">
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<System:String>Red</System:String>
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<System:String>Blue</System:String>
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<System:String>Green</System:String>
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<System:String>White</System:String>
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<System:String>Black</System:String>
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<System:String>NoColor</System:String>
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</x:Array>
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</Window.Resources>
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<Grid>
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<Grid.ColumnDefinitions>
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<ColumnDefinition />
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<ColumnDefinition />
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</Grid.ColumnDefinitions>
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<GroupBox Header="BrushConverter">
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<Grid>
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<Grid.RowDefinitions>
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<RowDefinition Height="Auto" />
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<RowDefinition />
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</Grid.RowDefinitions>
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<DockPanel>
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<TextBlock VerticalAlignment="Center" Text="線の色" />
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<ComboBox
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x:Name="BordColorC"
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Margin="5"
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ItemsSource="{StaticResource Colors}"
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SelectedValue="{Binding DefoBordColor}"
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SelectionChanged="BordColorC_SelectionChanged" />
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</DockPanel>
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<Rectangle
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Name="Rectan"
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Grid.Row="1"
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Width="120"
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Height="100"
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Stroke="Black"
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StrokeThickness="2" />
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</Grid>
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</GroupBox>
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<GroupBox Grid.Column="1" Header="Dictionary">
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<Grid>
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<Grid.RowDefinitions>
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<RowDefinition Height="Auto" />
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<RowDefinition />
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</Grid.RowDefinitions>
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<DockPanel>
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<TextBlock VerticalAlignment="Center" Text="線の色" />
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<ComboBox
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x:Name="BordColorC2"
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Margin="5"
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ItemsSource="{Binding Colors}"
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SelectedValue="{Binding DefoBordColor2}"
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SelectedValuePath="Key"
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SelectionChanged="BordColorC2_SelectionChanged">
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<ComboBox.ItemTemplate>
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<DataTemplate>
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<DockPanel>
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<Ellipse
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Width="16"
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Height="16"
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Fill="{Binding Value}" />
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<TextBlock
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Margin="5,0"
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VerticalAlignment="Center"
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Text="{Binding Key}" />
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</DockPanel>
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</DataTemplate>
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</ComboBox.ItemTemplate>
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</ComboBox>
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</DockPanel>
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<Rectangle
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Name="Rectan2"
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Grid.Row="1"
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Width="120"
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Height="100"
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Stroke="Black"
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StrokeThickness="2" />
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</Grid>
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</GroupBox>
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</Grid>
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</Window>
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```
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```
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```cs
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Media;
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namespace Questions344646
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{
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public class DefaultData
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{
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public static string DefoBordColor
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{
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get => Properties.Settings.Default.DefaBordColor;
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set => Properties.Settings.Default.DefaBordColor = value;
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}
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public static string DefoBordColor2
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{
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get => Properties.Settings.Default.DefaBordColor2;
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set => Properties.Settings.Default.DefaBordColor2 = value;
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}
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public static Dictionary<string, SolidColorBrush> Colors { get; } =
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new Dictionary<string, SolidColorBrush>
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{
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{"Red", Brushes.Red },
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{"Blue", Brushes.Blue },
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{"Green", Brushes.Green },
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{"白", Brushes.White },
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{"黒", Brushes.Black },
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{"透明", Brushes.Transparent },
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};
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}
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public partial class MainWindow : Window
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public MainWindow()
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InitializeComponent();
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// xamlから逆算するとこうなっているってこと？？（ちょっと変わってますね^^;
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DataContext = new DefaultData();
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set => Properties.Settings.Default.DefaBordColor2 = value;
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}
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public static Dictionary<string, SolidColorBrush> Colors { get; } =
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protected override void OnClosing(CancelEventArgs e)
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{
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{"Red", Brushes.Red },
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{"Blue", Brushes.Blue },
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{"Green", Brushes.Green },
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{"白", Brushes.White },
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{"黒", Brushes.Black },
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{"透明", Brushes.Transparent },
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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 MainWindow()
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{
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InitializeComponent();
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// xamlから逆算するとこうなっているってこと？？（ちょっと変わってますね^^;
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Properties.Settings.Default.Save();
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}
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private void BordColorC_SelectionChanged(object sender, SelectionChangedEventArgs e)
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{
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var name = BordColorC.SelectedItem.ToString();
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try
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{
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var brush = (SolidColorBrush)new BrushConverter().ConvertFromString(name);
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Rectan.Stroke = brush;
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}
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{
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Rectan.Stroke = Brushes.Transparent;
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}
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}
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private void BordColorC_SelectionChanged(object sender, SelectionChangedEventArgs e)
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private void BordColorC2_SelectionChanged(object sender, SelectionChangedEventArgs e)
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{
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var name = BordColorC.SelectedItem.ToString();
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try
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{
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var pair = (KeyValuePair<string, SolidColorBrush>)BordColorC2.SelectedItem;
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Rectan2.Stroke = pair.Value;
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}
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{
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Rectan.Stroke = Brushes.Transparent;
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}
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}
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private void BordColorC2_SelectionChanged(object sender, SelectionChangedEventArgs e)
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{
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var pair = (KeyValuePair<string, SolidColorBrush>)BordColorC2.SelectedItem;
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Rectan2.Stroke = pair.Value;
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}
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}
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}
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```
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