给数据中心添加事件

DMS.Application/DTOs/Events/VariableChangedEventArgs.cs

@@ -0,0 +1,51 @@
+using System;
+
+namespace DMS.Application.DTOs.Events
+{
+    /// <summary>
+    /// 变量变更事件参数
+    /// </summary>
+    public class VariableChangedEventArgs : System.EventArgs
+    {
+        /// <summary>
+        /// 变更类型
+        /// </summary>
+        public DataChangeType ChangeType { get; }
+
+        /// <summary>
+        /// 变量ID
+        /// </summary>
+        public int VariableId { get; }
+
+        /// <summary>
+        /// 变量名称
+        /// </summary>
+        public string VariableName { get; }
+
+        /// <summary>
+        /// 关联的变量表ID
+        /// </summary>
+        public int VariableTableId { 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>
+        /// <param name="variableId">变量ID</param>
+        /// <param name="variableName">变量名称</param>
+        /// <param name="variableTableId">关联的变量表ID</param>
+        public VariableChangedEventArgs(DataChangeType changeType, int variableId, string variableName, int variableTableId)
+        {
+            ChangeType = changeType;
+            VariableId = variableId;
+            VariableName = variableName;
+            VariableTableId = variableTableId;
+            ChangeTime = DateTime.Now;
+        }
+    }
+}