Add selected item import export

MainWindow.xaml

@@ -67,6 +67,8 @@
                             <Separator/>
                             <MenuItem Header="Export Config" Click="ExportConfig_Click"/>
                             <MenuItem Header="Import Config" Click="ImportConfig_Click"/>
+                            <MenuItem Header="Export Selected Item" Click="ExportSelectedItem_Click"/>
+                            <MenuItem Header="Import Item" Click="ImportItem_Click"/>
                             <Separator/>
                             <MenuItem Header="Reset to Defaults" Click="ResetConfig_Click"/>
                             <MenuItem Header="Reload Config" Click="ReloadConfig_Click"/>

MainWindow.xaml.cs

@@ -1260,6 +1260,114 @@ public partial class MainWindow : Window
         }
     }
 
+    private void ExportSelectedItem_Click(object sender, RoutedEventArgs e)
+    {
+        if (selectedItem is null)
+        {
+            MessageBox.Show("Select an item or menu to export first.", "Taskbar Launcher");
+            return;
+        }
+
+        ApplyCurrentItem();
+        string safeTitle = MakeSafeFileName(string.IsNullOrWhiteSpace(selectedItem.Title) ? "launcher-item" : selectedItem.Title);
+        using SaveFileDialog dialog = new()
+        {
+            Title = "Export selected launcher item",
+            Filter = "JSON item files|*.json|All files|*.*",
+            FileName = $"{safeTitle}-{DateTime.Now:yyyyMMdd-HHmmss}.json",
+            InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments)
+        };
+
+        if (dialog.ShowDialog() != System.Windows.Forms.DialogResult.OK)
+        {
+            return;
+        }
+
+        try
+        {
+            string exportPath = ConfigService.ExportItemTo(dialog.FileName, selectedItem);
+            StatusText.Text = $"Exported {selectedItem.Title} to {exportPath}";
+        }
+        catch (Exception ex)
+        {
+            MessageBox.Show($"Could not export selected item.\n\n{ex.Message}", "Taskbar Launcher");
+        }
+    }
+
+    private void ImportItem_Click(object sender, RoutedEventArgs e)
+    {
+        if (controller is null)
+        {
+            return;
+        }
+
+        using OpenFileDialog dialog = new()
+        {
+            Title = "Import launcher item",
+            Filter = "JSON item files|*.json|All files|*.*",
+            InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments)
+        };
+
+        if (dialog.ShowDialog() != System.Windows.Forms.DialogResult.OK)
+        {
+            return;
+        }
+
+        try
+        {
+            ApplyCurrentItem();
+            LauncherItem importedItem = ConfigService.ImportItemFrom(dialog.FileName);
+            AddImportedItem(importedItem);
+            selectedPath = FindItemPath(importedItem);
+            RefreshView(importedItem);
+            StatusText.Text = $"Imported {importedItem.Title}. Click Save to keep it.";
+        }
+        catch (Exception ex)
+        {
+            MessageBox.Show($"Could not import item.\n\n{ex.Message}", "Taskbar Launcher");
+        }
+    }
+
+    private void AddImportedItem(LauncherItem importedItem)
+    {
+        if (controller is null)
+        {
+            return;
+        }
+
+        if (selectedItem is null)
+        {
+            controller.Config.Items.Add(importedItem);
+            return;
+        }
+
+        if (selectedItem.Type == LauncherItemType.Menu)
+        {
+            selectedItem.Children.Add(importedItem);
+            return;
+        }
+
+        List<LauncherItem>? siblings = FindSiblings(controller.Config.Items, selectedItem);
+        if (siblings is null)
+        {
+            controller.Config.Items.Add(importedItem);
+            return;
+        }
+
+        int selectedIndex = siblings.IndexOf(selectedItem);
+        siblings.Insert(selectedIndex + 1, importedItem);
+    }
+
+    private static string MakeSafeFileName(string fileName)
+    {
+        foreach (char invalidChar in Path.GetInvalidFileNameChars())
+        {
+            fileName = fileName.Replace(invalidChar, '-');
+        }
+
+        return fileName.Trim();
+    }
+
     private void ResetConfig_Click(object sender, RoutedEventArgs e)
     {
         MessageBoxResult result = MessageBox.Show(

README.md

@@ -20,6 +20,7 @@ Download the compiled Windows release from:
 - Right-click launcher entries or Settings items to temporarily disable them
 - Right-click app/file entries to open their containing folder
 - Validate missing app, file, and folder targets from Settings
+- Export and import selected items or menu sections
 - Right-click item duplication in Settings
 - Right-click items in Settings to pin them to the top of their menu
 - Per-item icon and display mode

Services/ConfigService.cs

@@ -80,6 +80,49 @@ public static class ConfigService
         return destinationPath;
     }
 
+    public static string ExportItemTo(string destinationPath, LauncherItem item)
+    {
+        if (string.IsNullOrWhiteSpace(destinationPath))
+        {
+            throw new ArgumentException("Choose a destination path for the exported item.", nameof(destinationPath));
+        }
+
+        string? destinationFolder = Path.GetDirectoryName(destinationPath);
+        if (!string.IsNullOrWhiteSpace(destinationFolder))
+        {
+            Directory.CreateDirectory(destinationFolder);
+        }
+
+        NormalizeDisplayModes(item);
+        string json = JsonSerializer.Serialize(item, JsonOptions);
+        File.WriteAllText(destinationPath, json);
+        return destinationPath;
+    }
+
+    public static LauncherItem ImportItemFrom(string sourcePath)
+    {
+        if (!File.Exists(sourcePath))
+        {
+            throw new FileNotFoundException("The selected item file was not found.", sourcePath);
+        }
+
+        string json = File.ReadAllText(sourcePath);
+        LauncherItem item;
+        try
+        {
+            item = JsonSerializer.Deserialize<LauncherItem>(json, JsonOptions)
+                ?? throw new InvalidDataException("The selected item file could not be read.");
+        }
+        catch (JsonException ex)
+        {
+            throw new InvalidDataException("The selected file is not a valid Taskbar Launcher item export.", ex);
+        }
+
+        ValidateItem(item);
+        NormalizeDisplayModes(item);
+        return item;
+    }
+
     public static LauncherConfig ImportFrom(string sourcePath)
     {
         LauncherConfig config = ReadConfigFile(sourcePath);

TaskbarLauncher.csproj

@@ -12,8 +12,8 @@
     <Authors>Ray Berezowski</Authors>
     <ApplicationIcon>Assets\AppIcon.ico</ApplicationIcon>
     <Version>1.0.1</Version>
-    <AssemblyVersion>1.0.1.11</AssemblyVersion>
+    <AssemblyVersion>1.0.1.12</AssemblyVersion>
-    <FileVersion>1.0.1.11</FileVersion>
+    <FileVersion>1.0.1.12</FileVersion>
     <InformationalVersion>1.0.1</InformationalVersion>
   </PropertyGroup>
 

docs/INSTALL.md

@@ -42,6 +42,7 @@ From Settings you can:
 - Right-click an item and choose **Disable Item** or **Enable Item** to hide or restore it
 - Right-click an app or file item and choose **Open Containing Folder**
 - Use **Config... > Validate Targets** to check for missing app, file, and folder targets
+- Use **Config... > Export Selected Item** or **Import Item** to share one item or menu section
 - Set per-item icon sizes
 - Back up and restore `config.json`
 - Enable Start with Windows