添加项目文件。

MetroGauges/Database/Enitys/EntityBase.cs

@@ -0,0 +1,25 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.ComponentModel;
+using System.Collections.ObjectModel;
+using System.Collections.Specialized;
+
+namespace MetroGauges.Database.Enitys
+{
+	/// <summary>
+	/// 实体父类
+	/// </summary>
+	public class EntityBase : INotifyPropertyChanged
+	{
+		public event PropertyChangedEventHandler PropertyChanged;
+		protected void OnPropertyChanged(string prop)
+		{
+			if (this.PropertyChanged != null)
+			 this.PropertyChanged(this, new PropertyChangedEventArgs(prop));
+		}
+		
+	}
+}
+