Add string-to-color binding converter

src/Common/ChartDrawing/Converter/StringToColorConverter.cs

@@ -0,0 +1,29 @@
+using System;
+using System.Globalization;
+using System.Windows.Data;
+using System.Windows.Media;
+
+namespace CompMs.Graphics.Converter
+{
+    [ValueConversion(typeof(string), typeof(Color))]
+    public sealed class StringToColorConverter : IValueConverter
+    {
+        public object Convert(object value, Type targetType, object parameter, CultureInfo culture) {
+            if (value is Color color) {
+                return color.ToString();
+            }
+            return Binding.DoNothing;
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture) {
+            if (value is string text) {
+                try {
+                    return ColorConverter.ConvertFromString(text);
+                }
+                catch (FormatException) {
+                }
+            }
+            return Binding.DoNothing;
+        }
+    }
+}

src/MSDIAL5/MsdialGuiApp/View/Setting/FileClassSetView.xaml

@@ -3,6 +3,7 @@
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
              xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
              xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
+             xmlns:converter="clr-namespace:CompMs.Graphics.Converter;assembly=ChartDrawing"
              xmlns:ui="clr-namespace:CompMs.Graphics.UI;assembly=ChartDrawing"
              xmlns:behavior="clr-namespace:CompMs.Graphics.Behavior;assembly=ChartDrawing"
              xmlns:vm="clr-namespace:CompMs.App.Msdial.ViewModel.Setting"
@@ -11,6 +12,7 @@
              d:Background="White"
              d:DesignHeight="450" d:DesignWidth="400">
     <UserControl.Resources>
+        <converter:StringToColorConverter x:Key="StringToColorConverter"/>
         <Style TargetType="DataGrid">
             <Setter Property="CanUserAddRows" Value="False"/>
             <Setter Property="CanUserDeleteRows" Value="False"/>
@@ -48,6 +50,9 @@
                         </ui:CompositeColorPicker>
                     </DataTemplate>
                 </DataGridTemplateColumn.CellTemplate>
+                <DataGridTemplateColumn.ClipboardContentBinding>
+                    <Binding Path="Color.Value" Converter="{StaticResource StringToColorConverter}" />
+                </DataGridTemplateColumn.ClipboardContentBinding>
             </DataGridTemplateColumn>
             <DataGridTextColumn Header="Order"
                                 Binding="{Binding Order.Value, UpdateSourceTrigger=PropertyChanged}"