修正

ZR.Service/MES/dev/DeviceAccountService.cs

@@ -335,6 +335,8 @@ namespace ZR.Service.MES.dev
             //    All_device_type = new List<DeviceType> { line };
             //}
             All_device_type = FindAllLeafNodes(devicetype_id);
+            DeviceType final_parent = FindFinalParentNode(devicetype_id);
+            Workshop = final_parent.Name;
             List<LineDetail>  LineDetailList = new List<LineDetail>();
             // 2 获取每个线下的所有设备
             if (All_device_type.Count > 0)
@@ -476,6 +478,31 @@ namespace ZR.Service.MES.dev
 
             return result;
         }
+
+        /// <summary>
+        /// 用于在父子节点对象中，根据输入的节点 ID 找到最终的父节点：
+        /// </summary>
+        /// <param name="nodeId"></param>
+        /// <returns></returns>
+        public DeviceType FindFinalParentNode(int nodeId)
+        {
+            DeviceType currentNode = Context.Queryable<DeviceType>().Where(n => n.Id == nodeId).First();
+
+            if (currentNode == null)
+            {
+                return null;
+            }
+
+            DeviceType parentNode = Context.Queryable<DeviceType>().Where(n => n.Id == currentNode.ParentId).First();
+
+            while (parentNode != null)
+            {
+                currentNode = parentNode;
+                parentNode = Context.Queryable<DeviceType>().Where(n => n.Id == currentNode.ParentId).First();
+            }
+
+            return currentNode;
+        }
     }