修改打印逻辑

RIZO_Application/RIZO_Application.Infrastructure/Util/BartenderHelper/BartenderPrintHelper.cs

@@ -1,9 +1,11 @@
-using System;
+using Microsoft.SqlServer.Server;
+using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Reflection;
 using System.Runtime.InteropServices;
 using System.Threading;
+using System.Threading.Tasks;
 
 namespace linesider_screen_tool
 {
@@ -12,7 +14,7 @@ namespace linesider_screen_tool
         private const string BarTenderProgId = "BarTender.Application";
         private object? _btApp; // 声明为可空类型
         private int _disposedValue;
-
+        
         public BartenderPrintHelper()
         {
             // 延迟初始化，在首次使用时创建 Bartender 应用实例
@@ -38,6 +40,51 @@ namespace linesider_screen_tool
             }, templatePath);
         }
 
+
+        public Task<List<string>> GetNamedSubStrings(string templatePath)
+        {
+            dynamic format =null;
+            dynamic btApp = null;
+            try
+            {
+                btApp = Activator.CreateInstance(Type.GetTypeFromProgID(BarTenderProgId));
+                format = btApp.Formats.Open(
+                        templatePath,
+                         false,
+                        null
+                    );
+                format.PrintSetup.IdenticalCopiesOfLabel = 1;
+                format.PrintSetup.NumberSerializedLabels = 1;
+                List<string> subStrings = new List<string>();
+                dynamic namedSubStrings = format.NamedSubStrings;
+
+                foreach (var iteam in namedSubStrings)
+                {
+                    subStrings.Add(iteam.Name);
+                }
+                
+                return Task.FromResult(subStrings);
+            }
+            catch (Exception ex)
+            {
+
+                Console.WriteLine($"发生错误: {ex.Message}");
+                return null;
+            }
+            finally
+            {
+                // 清理资源
+                if (format != null)
+                {
+                    Marshal.ReleaseComObject(format);
+                }
+                if (btApp != null)
+                {
+                    btApp.Quit(0);
+                    Marshal.ReleaseComObject(_btApp);
+                }
+            }
+        }
         /// <summary>
         /// 批量打印标签（高性能实现）
         /// </summary>