初始化上传

常用工具集/Base/ViewModelBase.cs

@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Runtime.CompilerServices;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace 常用工具集.Base
+{
+    public class ViewModelBase : INotifyPropertyChanged
+    {
+        public event PropertyChangedEventHandler PropertyChanged;
+        public void NotifyPropertyChanged([CallerMemberName] string propertyname = null)
+        {
+            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyname));
+        }
+    }
+}