完成S7变量启用和停用更新

DMS.Application/Events/DataChangedEventArgs.cs

@@ -0,0 +1,30 @@
+using DMS.Core.Enums;
+
+namespace DMS.Application.Events
+{
+    /// <summary>
+    /// 数据变更事件参数基类
+    /// </summary>
+    public class DataChangedEventArgs : System.EventArgs
+    {
+        /// <summary>
+        /// 变更类型
+        /// </summary>
+        public DataChangeType ChangeType { get; }
+
+        /// <summary>
+        /// 变更时间
+        /// </summary>
+        public DateTime ChangeTime { get; }
+
+        /// <summary>
+        /// 构造函数
+        /// </summary>
+        /// <param name="changeType">变更类型</param>
+        public DataChangedEventArgs(DataChangeType changeType)
+        {
+            ChangeType = changeType;
+            ChangeTime = DateTime.Now;
+        }
+    }
+}