Copy Value in treeview

Author: Sébastien Geiser

RegexDialog/RegExToolDialog.xaml

@@ -422,6 +422,11 @@
                         VirtualizingPanel.IsVirtualizing="True"
                         SelectedItemChanged="MatchResultsTreeView_SelectedItemChanged"
                         PreviewMouseRightButtonDown="OnPreviewMouseRightButtonDown">
+                        <TreeView.CommandBindings>
+                            <CommandBinding Command="ApplicationCommands.Copy" 
+                                            Executed="TreeViewCopy_CommandBinding_Executed"
+                                            CanExecute="TreeViewCopy_CommandBinding_CanExecuted" />
+                        </TreeView.CommandBindings>
                         <TreeView.ItemContainerStyle>
                             <Style TargetType="TreeViewItem">
                                 <Setter Property="IsExpanded" Value="{Binding IsExpanded, IsAsync=True}" />
@@ -442,6 +447,8 @@
                                 <Separator/>
                                 <MenuItem Header="Insert value in Replace field" Click="InsertValueInReplaceField_MenuItem_Click"/>
                                 <Separator/>
+                                <MenuItem Header="Copy value" Command="ApplicationCommands.Copy" />
+                                <Separator/>
                                 <MenuItem Header="Show Matches Level" Click="ShowMatchesMenu_Click"/>
                                 <MenuItem Header="Show Groups Level" Click="ShowGroupsMenu_Click"/>
                                 <MenuItem Header="Show Captures Level" Click="ShowCapturesMenu_Click"/>
@@ -453,6 +460,8 @@
                                 <MenuItem Header="Insert group by name in Replace field" Click="InsertGroupByNameInReplaceField_MenuItem_Click"/>
                                 <MenuItem Header="Insert value in Replace field" Click="InsertValueInReplaceField_MenuItem_Click"/>
                                 <Separator/>
+                                <MenuItem Header="Copy value" Command="ApplicationCommands.Copy" />
+                                <Separator/>
                                 <MenuItem Header="Show Matches Level" Click="ShowMatchesMenu_Click"/>
                                 <MenuItem Header="Show Groups Level" Click="ShowGroupsMenu_Click"/>
                                 <MenuItem Header="Show Captures Level" Click="ShowCapturesMenu_Click"/>

RegexDialog/RegExToolDialog.xaml.cs

@@ -1628,6 +1628,32 @@ private void InsertInReplaceFromContextMenu_Click(object sender, RoutedEventArgs
             catch { }
         }
 
+        private void TreeViewCopy_CommandBinding_Executed(object sender, ExecutedRoutedEventArgs e)
+        {
+            CopyCaptureValue();
+        }
+
+        private void TreeViewCopy_CommandBinding_CanExecuted(object sender, CanExecuteRoutedEventArgs e)
+        {
+            e.CanExecute = MatchResultsTreeView.SelectedValue != null;
+        }
+
+        private void CopyCaptureValue()
+        {
+            try
+            {
+                if (MatchResultsTreeView.SelectedValue is RegexFileResult regexfileResult)
+                {
+                    Clipboard.SetText(regexfileResult.FileName);
+                }
+                else if (MatchResultsTreeView.SelectedValue is RegexResult regexResult)
+                {
+                    Clipboard.SetText(regexResult.Value);
+                }
+            }
+            catch { }
+        }
+
         private void CmiReplaceCopyForCSharpString_Click(object sender, RoutedEventArgs e)
         {
             try