增强条码元素和自由表格元素的渲染逻辑，支持更多条码格式和文本边框样式。新增条码渲染工具，优化打印预览窗口的打印机选择功能，提升用户体验和打印模板的灵活性。

yy-admin-master/YY.Admin/ViewModels/Print/PrintTemplateListViewModel.cs

@@ -14,6 +14,7 @@ namespace YY.Admin.ViewModels.Print;
 public class PrintTemplateListViewModel : BaseViewModel
 {
     private readonly IPrintTemplateService _printTemplateService;
+    private readonly IPrintDotService _printDotService;
     private readonly IEventAggregator _eventAggregator;
     private SubscriptionToken? _changeToken;
 
@@ -21,6 +22,32 @@ public class PrintTemplateListViewModel : BaseViewModel
 
     public ObservableCollection<PrintTemplate> Templates { get; } = new();
 
+    // ── PrintDot 打印机选择 ────────────────────────────────────────────────
+    public ObservableCollection<PrintDotPrinter> Printers { get; } = new();
+
+    private bool _suppressPrinterSave;
+    private PrintDotPrinter? _selectedPrinter;
+    public PrintDotPrinter? SelectedPrinter
+    {
+        get => _selectedPrinter;
+        set
+        {
+            if (!SetProperty(ref _selectedPrinter, value)) return;
+            if (_suppressPrinterSave) return;
+            // 持久化用户选择，预览窗口和后续会话使用
+            var s = PrintDotSettings.Load();
+            s.SelectedPrinter = value?.Name ?? string.Empty;
+            s.Save();
+        }
+    }
+
+    private string _printerStatus = string.Empty;
+    public string PrinterStatus
+    {
+        get => _printerStatus;
+        set => SetProperty(ref _printerStatus, value);
+    }
+
     private string _statusMessage = string.Empty;
     public string StatusMessage
     {
@@ -52,14 +79,17 @@ public class PrintTemplateListViewModel : BaseViewModel
     public DelegateCommand SearchCommand { get; }
     public DelegateCommand ResetCommand { get; }
     public DelegateCommand<PrintTemplate> PreviewCommand { get; }
+    public DelegateCommand RefreshPrintersCommand { get; }
 
     public PrintTemplateListViewModel(
         IPrintTemplateService printTemplateService,
+        IPrintDotService printDotService,
         IEventAggregator eventAggregator,
         IContainerExtension container,
         IRegionManager regionManager) : base(container, regionManager)
     {
         _printTemplateService = printTemplateService;
+        _printDotService = printDotService;
         _eventAggregator = eventAggregator;
 
         SearchCommand = new DelegateCommand(ApplyFilter);
@@ -71,6 +101,7 @@ public class PrintTemplateListViewModel : BaseViewModel
             FilterCategory = null;
             ApplyFilter();
         });
+        RefreshPrintersCommand = new DelegateCommand(async () => await RefreshPrintersAsync(verbose: true));
 
         _changeToken = _eventAggregator
             .GetEvent<PrintTemplateChangedEvent>()
@@ -79,6 +110,51 @@ public class PrintTemplateListViewModel : BaseViewModel
         // 先用缓存立即填充，再后台静默刷新
         ShowCached();
         _ = RefreshSilentlyAsync();
+
+        // 后台静默连接 PrintDot 桥接器，初次加载打印机
+        _ = RefreshPrintersAsync(verbose: false);
+    }
+
+    /// <summary>
+    /// 通过 PrintDot 桥接器拉取打印机列表，与后端 web 列表页的 fetchPrintDotPrinters 行为对齐。
+    /// </summary>
+    private async Task RefreshPrintersAsync(bool verbose)
+    {
+        if (verbose) PrinterStatus = "刷新打印机中...";
+        var savedName = PrintDotSettings.Load().SelectedPrinter;
+        try
+        {
+            var list = await _printDotService.GetPrintersAsync();
+            System.Windows.Application.Current.Dispatcher.Invoke(() =>
+            {
+                Printers.Clear();
+                foreach (var p in list) Printers.Add(p);
+
+                // 选中规则：上次保存 > 系统默认 > 首台
+                var match = list.FirstOrDefault(p => p.Name == savedName)
+                            ?? list.FirstOrDefault(p => p.IsDefault)
+                            ?? (list.Count > 0 ? list[0] : null);
+
+                _suppressPrinterSave = true;
+                SelectedPrinter = match;
+                _suppressPrinterSave = false;
+
+                PrinterStatus = list.Count > 0 ? $"共 {list.Count} 台打印机" : "未检测到打印机";
+            });
+        }
+        catch (Exception ex)
+        {
+            System.Windows.Application.Current.Dispatcher.Invoke(() =>
+            {
+                Printers.Clear();
+                _suppressPrinterSave = true;
+                SelectedPrinter = null;
+                _suppressPrinterSave = false;
+                PrinterStatus = verbose
+                    ? $"PrintDot 未连接：{ex.Message}"
+                    : "PrintDot 未连接";
+            });
+        }
     }
 
     private void ShowCached()
@@ -192,7 +268,7 @@ public class PrintTemplateListViewModel : BaseViewModel
             catch { /* 保持 json 为 null，预览窗口显示"尚未设计" */ }
         }
 
-        var win = new PrintPreviewWindow(template, json)
+        var win = new PrintPreviewWindow(template, json, _printDotService, SelectedPrinter?.Name)
         {
             Owner = Application.Current.MainWindow
         };

yy-admin-master/YY.Admin/Views/Print/PrintPreviewWindow.xaml

@@ -44,9 +44,29 @@
                             VerticalAlignment="Center">
                     <TextBlock x:Name="TbStatus"
                                FontSize="12" Foreground="#888888"
-                               VerticalAlignment="Center" Margin="0,0,16,0"/>
+                               VerticalAlignment="Center" Margin="0,0,12,0"
+                               MaxWidth="320"
+                               TextWrapping="NoWrap"
+                               TextTrimming="CharacterEllipsis"
+                               ToolTipService.ShowDuration="30000"/>
+                    <TextBlock Text="打印机：" VerticalAlignment="Center"
+                               FontSize="12" Foreground="#333333"/>
+                    <ComboBox x:Name="PrinterCombo"
+                              MinWidth="200" Height="30"
+                              VerticalContentAlignment="Center"
+                              DisplayMemberPath="Name"/>
+                    <Button x:Name="BtnRefreshPrinters"
+                            Content="刷新打印机"
+                            Click="RefreshPrinters_Click"
+                            Margin="6,0,0,0" Height="30" Padding="10,0" FontSize="12"
+                            Style="{StaticResource ButtonDefault}"/>
+                    <Button x:Name="BtnPrint"
+                            Content="打印"
+                            Click="Print_Click"
+                            Margin="12,0,0,0" Width="84" Height="30" FontSize="13"
+                            Style="{StaticResource ButtonPrimary}"/>
                     <Button Content="关闭" Click="CloseButton_Click"
-                            Width="72" Height="30" FontSize="13"
+                            Margin="8,0,0,0" Width="72" Height="30" FontSize="13"
                             Style="{StaticResource ButtonDefault}"/>
                 </StackPanel>
             </Grid>

yy-admin-master/YY.Admin/Views/Print/PrintPreviewWindow.xaml.cs

@@ -1,8 +1,11 @@
+using System.Globalization;
+using System.IO;
 using System.Text.Json;
 using System.Text.Json.Nodes;
 using System.Text.RegularExpressions;
 using System.Windows;
 using YY.Admin.Core.Entity;
+using YY.Admin.Core.Services;
 using YY.Admin.Services.Service.Print;
 
 namespace YY.Admin.Views.Print;
@@ -10,11 +13,23 @@ namespace YY.Admin.Views.Print;
 public partial class PrintPreviewWindow : HandyControl.Controls.Window
 {
     private readonly string _templateJson;
+    private readonly PrintTemplate _template;
+    private readonly IPrintDotService? _printDotService;
+    private readonly string? _initialPrinterName;
 
     public PrintPreviewWindow(PrintTemplate template, string? templateJson)
+        : this(template, templateJson, null, null)
+    {
+    }
+
+    public PrintPreviewWindow(PrintTemplate template, string? templateJson,
+        IPrintDotService? printDotService, string? selectedPrinterName)
     {
         InitializeComponent();
+        _template = template;
         _templateJson = templateJson ?? string.Empty;
+        _printDotService = printDotService;
+        _initialPrinterName = selectedPrinterName;
 
         TbTemplateName.Text = template.TemplateName ?? "（未命名）";
         TbTemplateCode.Text = $"编码：{template.TemplateCode}  " +
@@ -23,20 +38,32 @@ public partial class PrintPreviewWindow : HandyControl.Controls.Window
 
         TbParamJson.Text = BuildMockParamJson(_templateJson);
 
-        Loaded += async (_, _) => await LoadPreviewAsync();
+        // 没有 PrintDot 服务时禁用打印相关按钮
+        if (_printDotService == null)
+        {
+            BtnPrint.IsEnabled = false;
+            BtnRefreshPrinters.IsEnabled = false;
+            PrinterCombo.IsEnabled = false;
+        }
+
+        Loaded += async (_, _) =>
+        {
+            await LoadPreviewAsync();
+            await LoadPrintersAsync(verbose: false);
+        };
     }
 
     private async Task LoadPreviewAsync()
     {
         try
         {
-            TbStatus.Text = "加载中…";
+            SetStatus("加载中…");
             await WebView.EnsureCoreWebView2Async();
 
             if (string.IsNullOrWhiteSpace(_templateJson) || _templateJson == "{}")
             {
                 WebView.NavigateToString(BuildEmptyHtml());
-                TbStatus.Text = "尚未设计模板内容";
+                SetStatus("尚未设计模板内容");
                 return;
             }
 
@@ -44,7 +71,7 @@ public partial class PrintPreviewWindow : HandyControl.Controls.Window
         }
         catch (Exception ex)
         {
-            TbStatus.Text = $"预览失败：{ex.Message}";
+            SetStatus($"预览失败：{ex.Message}");
         }
     }
 
@@ -75,7 +102,7 @@ public partial class PrintPreviewWindow : HandyControl.Controls.Window
     {
         try
         {
-            TbStatus.Text = "渲染中…";
+            SetStatus("渲染中…");
 
             JsonObject dataObj;
             var text = TbParamJson.Text?.Trim();
@@ -89,7 +116,7 @@ public partial class PrintPreviewWindow : HandyControl.Controls.Window
                 if (node is not JsonObject obj)
                 {
                     WebView.NavigateToString(BuildErrorHtml("参数JSON必须是对象（JSON Object）"));
-                    TbStatus.Text = "参数JSON格式错误";
+                    SetStatus("参数JSON格式错误");
                     return;
                 }
                 dataObj = obj;
@@ -97,12 +124,12 @@ public partial class PrintPreviewWindow : HandyControl.Controls.Window
 
             var html = NativePrintRenderService.RenderToHtml(_templateJson, dataObj);
             WebView.NavigateToString(html);
-            TbStatus.Text = string.Empty;
+            SetStatus(string.Empty);
         }
         catch (Exception ex)
         {
             WebView.NavigateToString(BuildErrorHtml(ex.Message));
-            TbStatus.Text = $"渲染失败：{ex.Message}";
+            SetStatus($"渲染失败：{ex.Message}");
         }
         await Task.CompletedTask;
     }
@@ -192,8 +219,8 @@ public partial class PrintPreviewWindow : HandyControl.Controls.Window
                                 {
                                     "number" => (i + 1) * 123.45,
                                     "amount" => (i + 1) * 24567.89,
-                                    "qrcode" => $"QR_{field}_{i + 1}",
-                                    "barcode" => $"BAR_{field}_{i + 1}",
+                                    "qrcode" => BuildQrcodeMockValue(field, rng),
+                                    "barcode" => BuildBarcodeMockValue(field, rng),
                                     "image" => $"https://picsum.photos/seed/{Uri.EscapeDataString(field + "_" + (i + 1))}/260/120",
                                     _ => $"{field}_示例值_{i + 1}"
                                 };
@@ -209,6 +236,30 @@ public partial class PrintPreviewWindow : HandyControl.Controls.Window
                 if (!string.IsNullOrWhiteSpace(bind))
                     fields.Add(bind);
 
+                // 针对单一元素按 type 提前预填合法 mock 值，避免下面兜底成"字段_示例值"
+                // （barcode 含中文会导致 Code128 编码失败）。与 web 端 nativeMockData.ts 行为对齐。
+                if (!string.IsNullOrWhiteSpace(bind) && !obj.ContainsKey(bind))
+                {
+                    switch (type)
+                    {
+                        case "barcode":
+                            obj[bind] = BuildBarcodeMockValue(bind, rng);
+                            break;
+                        case "qrcode":
+                            obj[bind] = BuildQrcodeMockValue(bind, rng);
+                            break;
+                        case "image":
+                            obj[bind] = $"https://picsum.photos/seed/{Uri.EscapeDataString(bind)}/260/120";
+                            break;
+                        case "date":
+                            obj[bind] = "2026-01-01";
+                            break;
+                    }
+                }
+
+                // freeTable / 其它含 cells 的元素：根据 cell.contentType 预填合法 mock 值
+                CollectCellsMock(el["cells"], obj, fields, rng);
+
                 // 提取 text 中的 {{field}} 占位符（支持内嵌）
                 var text = el["text"]?.ToString() ?? string.Empty;
                 foreach (Match m in Regex.Matches(text, @"\{\{\s*([\w\.]+)\s*\}\}"))
@@ -217,8 +268,6 @@ public partial class PrintPreviewWindow : HandyControl.Controls.Window
                     if (!string.IsNullOrWhiteSpace(key))
                         fields.Add(key);
                 }
-
-                CollectBindFields(el["cells"], fields);
             }
 
             foreach (var f in fields.OrderBy(x => x, StringComparer.OrdinalIgnoreCase))
@@ -237,6 +286,71 @@ public partial class PrintPreviewWindow : HandyControl.Controls.Window
         }
     }
 
+    /// <summary>
+    /// 生成一个 ASCII 安全、Code128 可编码的条码 mock 值：BAR + 12 位数字 + 字段名前 6 位转大写字母。
+    /// 与 web 端 nativeMockData.ts::buildBarcodeValue 同款规则。
+    /// </summary>
+    private static string BuildBarcodeMockValue(string field, Random rng)
+    {
+        var digits = rng.NextInt64(100000000000L, 999999999999L).ToString(CultureInfo.InvariantCulture);
+        var suffix = new string((field ?? string.Empty)
+            .Where(c => (c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z') || (c >= '0' && c <= '9'))
+            .Take(6).ToArray()).ToUpperInvariant();
+        if (string.IsNullOrEmpty(suffix)) suffix = "BARCOD";
+        return $"BAR{digits}{suffix}";
+    }
+
+    /// <summary>生成 QR mock 值：纯 ASCII，便于 QRCoder 编码与人眼区分字段。</summary>
+    private static string BuildQrcodeMockValue(string field, Random rng)
+    {
+        var safe = new string((field ?? string.Empty)
+            .Where(c => (c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z') || (c >= '0' && c <= '9') || c == '_')
+            .ToArray());
+        if (string.IsNullOrEmpty(safe)) safe = "QR";
+        return $"QR_{safe}_{rng.Next(100000, 999999)}";
+    }
+
+    /// <summary>
+    /// 递归扫描 cells 节点（freeTable、嵌套结构），按每个 cell 的 contentType 提前预填合法 mock 值。
+    /// 不识别的 cell 继续走原来的 fields 兜底流程。
+    /// </summary>
+    private static void CollectCellsMock(JsonNode? node, JsonObject obj, ISet<string> fields, Random rng)
+    {
+        if (node == null) return;
+        if (node is JsonObject o)
+        {
+            var bind = (o["bindField"]?.ToString() ?? string.Empty).Trim();
+            if (!string.IsNullOrWhiteSpace(bind))
+            {
+                fields.Add(bind);
+                if (!obj.ContainsKey(bind))
+                {
+                    var ct = (o["contentType"]?.ToString() ?? "text").Trim().ToLowerInvariant();
+                    switch (ct)
+                    {
+                        case "barcode":
+                            obj[bind] = BuildBarcodeMockValue(bind, rng);
+                            break;
+                        case "qrcode":
+                            obj[bind] = BuildQrcodeMockValue(bind, rng);
+                            break;
+                        case "image":
+                            obj[bind] = $"https://picsum.photos/seed/{Uri.EscapeDataString(bind)}/260/120";
+                            break;
+                    }
+                }
+            }
+            foreach (var kv in o)
+                CollectCellsMock(kv.Value, obj, fields, rng);
+            return;
+        }
+        if (node is JsonArray arr)
+        {
+            foreach (var it in arr)
+                CollectCellsMock(it, obj, fields, rng);
+        }
+    }
+
     private static void CollectBindFields(JsonNode? node, ISet<string> fields)
     {
         if (node == null) return;
@@ -285,4 +399,134 @@ public partial class PrintPreviewWindow : HandyControl.Controls.Window
     }
 
     private void CloseButton_Click(object sender, RoutedEventArgs e) => Close();
+
+    /// <summary>
+    /// 设置顶部状态栏文字：单行显示首行概要，完整多行内容通过 ToolTip 兜底，避免把工具栏撑高。
+    /// </summary>
+    private void SetStatus(string? message)
+    {
+        var full = (message ?? string.Empty).Trim();
+        var firstLine = full.Split(new[] { '\r', '\n' }, StringSplitOptions.RemoveEmptyEntries).FirstOrDefault() ?? string.Empty;
+        TbStatus.Text = firstLine;
+        TbStatus.ToolTip = full.Contains('\n') || full.Length > firstLine.Length ? full : null;
+    }
+
+    // ── 打印机列表加载（PrintDot 桥接器） ────────────────────────────────
+
+    /// <summary>
+    /// 通过 PrintDot 桥接器拉取打印机列表，填充顶部下拉框，并按上次选择/系统默认/首台优先选中。
+    /// </summary>
+    private async Task LoadPrintersAsync(bool verbose)
+    {
+        if (_printDotService == null) return;
+
+        try
+        {
+            if (verbose) SetStatus("刷新打印机中...");
+            var list = await _printDotService.GetPrintersAsync();
+            PrinterCombo.ItemsSource = list;
+
+            var preferName = _initialPrinterName
+                ?? PrintDotSettings.Load().SelectedPrinter;
+            var match = list.FirstOrDefault(p => p.Name == preferName)
+                        ?? list.FirstOrDefault(p => p.IsDefault)
+                        ?? list.FirstOrDefault();
+            PrinterCombo.SelectedItem = match;
+
+            SetStatus(list.Count > 0
+                ? $"已发现 {list.Count} 台打印机"
+                : "未检测到打印机");
+        }
+        catch (Exception ex)
+        {
+            PrinterCombo.ItemsSource = null;
+            SetStatus($"PrintDot 未连接：{ex.Message}");
+        }
+    }
+
+    private async void RefreshPrinters_Click(object sender, RoutedEventArgs e)
+    {
+        await LoadPrintersAsync(verbose: true);
+    }
+
+    /// <summary>
+    /// 打印流程：
+    /// 1) 用 WebView2.PrintToPdfAsync 按模板纸张尺寸生成 PDF（与 @page 一致，零边距）；
+    /// 2) 读取 PDF → Base64；
+    /// 3) 通过 PrintDot 桥接器发送至本地物理打印机。
+    /// 与后端 web 端 printNativeSchemaViaPrintDot 的行为基本一致，只是 HTML→PDF 改用 WebView2 内置能力，
+    /// 比 html2canvas + jsPDF 更接近浏览器原生打印效果。
+    /// </summary>
+    private async void Print_Click(object sender, RoutedEventArgs e)
+    {
+        if (_printDotService == null)
+        {
+            HandyControl.Controls.Growl.Warning("PrintDot 服务不可用");
+            return;
+        }
+
+        if (string.IsNullOrWhiteSpace(_templateJson) || _templateJson == "{}")
+        {
+            HandyControl.Controls.Growl.Warning("当前模板没有可打印内容");
+            return;
+        }
+
+        var selected = PrinterCombo.SelectedItem as PrintDotPrinter;
+        if (selected == null || string.IsNullOrWhiteSpace(selected.Name))
+        {
+            HandyControl.Controls.Growl.Warning("请先选择打印机");
+            return;
+        }
+
+        BtnPrint.IsEnabled = false;
+        var pdfPath = Path.Combine(Path.GetTempPath(), $"qhmes_print_{Guid.NewGuid():N}.pdf");
+        try
+        {
+            // 1) 生成 PDF
+            SetStatus("正在生成 PDF...");
+            await WebView.EnsureCoreWebView2Async();
+
+            var pageW = (_template.PaperWidthMm ?? 210);
+            var pageH = (_template.PaperHeightMm ?? 297);
+            var settings = WebView.CoreWebView2.Environment.CreatePrintSettings();
+            settings.PageWidth = pageW / 25.4d;   // 毫米转英寸
+            settings.PageHeight = pageH / 25.4d;
+            settings.MarginTop = 0;
+            settings.MarginBottom = 0;
+            settings.MarginLeft = 0;
+            settings.MarginRight = 0;
+            settings.ShouldPrintBackgrounds = true;
+            settings.ShouldPrintHeaderAndFooter = false;
+            settings.Orientation = string.Equals(_template.PaperOrientation, "横向", StringComparison.Ordinal)
+                ? Microsoft.Web.WebView2.Core.CoreWebView2PrintOrientation.Landscape
+                : Microsoft.Web.WebView2.Core.CoreWebView2PrintOrientation.Portrait;
+
+            var ok = await WebView.CoreWebView2.PrintToPdfAsync(pdfPath, settings);
+            if (!ok || !File.Exists(pdfPath))
+                throw new InvalidOperationException("生成 PDF 失败，请确认预览已加载完成");
+
+            // 2) 读取为 Base64
+            var pdfBytes = await File.ReadAllBytesAsync(pdfPath);
+            var pdfBase64 = Convert.ToBase64String(pdfBytes);
+
+            // 3) 通过 PrintDot 桥接器发送
+            SetStatus($"正在通过 PrintDot 发送到「{selected.Name}」...");
+            var jobName = string.IsNullOrWhiteSpace(_template.TemplateName) ? "QH-MES" : _template.TemplateName!;
+            await _printDotService.PrintAsync(selected.Name, pdfBase64, jobName, copies: 1);
+
+            SetStatus("打印任务已发送");
+            HandyControl.Controls.Growl.Success("打印任务已发送至 PrintDot");
+        }
+        catch (Exception ex)
+        {
+            // 顶部状态栏单行显示首行，完整多行处理步骤在 Growl 弹窗中展示
+            SetStatus($"打印失败：{ex.Message}");
+            HandyControl.Controls.Growl.Error($"打印失败：{ex.Message}");
+        }
+        finally
+        {
+            try { if (File.Exists(pdfPath)) File.Delete(pdfPath); } catch { /* 忽略清理失败 */ }
+            BtnPrint.IsEnabled = true;
+        }
+    }
 }

yy-admin-master/YY.Admin/Views/Print/PrintTemplateListView.xaml

@@ -52,20 +52,54 @@
 
         <!-- 操作工具栏 -->
         <Border Grid.Row="1" Margin="0,10">
-            <hc:UniformSpacingPanel Spacing="10">
-                <Button Style="{StaticResource ButtonPrimary}" Command="{Binding SearchCommand}">
-                    <StackPanel Orientation="Horizontal">
-                        <md:PackIcon Kind="Search"/>
-                        <TextBlock Text="搜索" Style="{StaticResource IconButtonStyle}"/>
-                    </StackPanel>
-                </Button>
-                <Button Style="{StaticResource ButtonDefault}" Command="{Binding ResetCommand}">
-                    <StackPanel Orientation="Horizontal">
-                        <md:PackIcon Kind="Refresh"/>
-                        <TextBlock Text="重置" Style="{StaticResource IconButtonStyle}"/>
-                    </StackPanel>
-                </Button>
-            </hc:UniformSpacingPanel>
+            <Grid>
+                <Grid.ColumnDefinitions>
+                    <ColumnDefinition Width="Auto"/>
+                    <ColumnDefinition Width="*"/>
+                    <ColumnDefinition Width="Auto"/>
+                </Grid.ColumnDefinitions>
+
+                <hc:UniformSpacingPanel Grid.Column="0" Spacing="10" VerticalAlignment="Center">
+                    <Button Style="{StaticResource ButtonPrimary}" Command="{Binding SearchCommand}">
+                        <StackPanel Orientation="Horizontal">
+                            <md:PackIcon Kind="Search"/>
+                            <TextBlock Text="搜索" Style="{StaticResource IconButtonStyle}"/>
+                        </StackPanel>
+                    </Button>
+                    <Button Style="{StaticResource ButtonDefault}" Command="{Binding ResetCommand}">
+                        <StackPanel Orientation="Horizontal">
+                            <md:PackIcon Kind="Refresh"/>
+                            <TextBlock Text="重置" Style="{StaticResource IconButtonStyle}"/>
+                        </StackPanel>
+                    </Button>
+                </hc:UniformSpacingPanel>
+
+                <!-- PrintDot 打印机选择（与后端列表页对齐） -->
+                <StackPanel Grid.Column="2" Orientation="Horizontal" VerticalAlignment="Center">
+                    <TextBlock Text="打印机：" VerticalAlignment="Center"
+                               FontSize="13" Foreground="#333333"/>
+                    <ComboBox ItemsSource="{Binding Printers}"
+                              SelectedItem="{Binding SelectedPrinter}"
+                              DisplayMemberPath="Name"
+                              MinWidth="220" Height="30"
+                              VerticalContentAlignment="Center"
+                              hc:InfoElement.Placeholder="请选择打印机"/>
+                    <Button Command="{Binding RefreshPrintersCommand}"
+                            Height="30" Padding="10,0" Margin="8,0,0,0"
+                            FontSize="12"
+                            Style="{StaticResource ButtonDefault}">
+                        <StackPanel Orientation="Horizontal">
+                            <md:PackIcon Kind="Refresh" VerticalAlignment="Center"/>
+                            <TextBlock Text="刷新打印机" Margin="4,0,0,0" VerticalAlignment="Center"/>
+                        </StackPanel>
+                    </Button>
+                    <TextBlock Text="{Binding PrinterStatus}"
+                               Margin="12,0,0,0"
+                               VerticalAlignment="Center"
+                               FontSize="12"
+                               Foreground="{DynamicResource SecondaryTextBrush}"/>
+                </StackPanel>
+            </Grid>
         </Border>
 
         <!-- 数据表格 -->