toolkit

CPF.Toolkit/ObservableObject.cs

@@ -0,0 +1,63 @@
+using System;
+using System.Collections.Concurrent;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Runtime.CompilerServices;
+using System.Text;
+
+namespace CPF.Toolkit
+{
+    public class ObservableObject : INotifyPropertyChanged
+    {
+        readonly ConcurrentDictionary<string, object> Propertys = new ConcurrentDictionary<string, object> { };
+        public event PropertyChangedEventHandler PropertyChanged;
+
+
+        public T GetValue<T>(T defaultValue = default, [CallerMemberName] string propertyName = null)
+        {
+            if (string.IsNullOrEmpty(propertyName))
+            {
+                throw new Exception("propertyName不能为空");
+            }
+            if (!this.Propertys.ContainsKey(propertyName))
+            {
+                this.Propertys.TryAdd(propertyName, defaultValue);
+            }
+            return (T)this.Propertys[propertyName];
+        }
+
+        public bool SetValue<T>(T value, [CallerMemberName] string propertyName = null)
+        {
+            if (string.IsNullOrEmpty(propertyName))
+            {
+                throw new Exception("propertyName不能为空");
+            }
+
+            if (!this.Propertys.ContainsKey(propertyName))
+            {
+                this.Propertys.TryAdd(propertyName, value);
+            }
+            else
+            {
+                var v = this.GetValue<T>(propertyName: propertyName);
+                if (EqualityComparer<T>.Default.Equals(value, v)) return false;
+                this.Propertys[propertyName] = value;
+            }
+            this.RaisePropertyChanged(propertyName);
+            return true;
+        }
+
+        public void SetValue<T>(T value, Action<T> action, [CallerMemberName] string propertyName = null)
+        {
+            if (this.SetValue(value, propertyName))
+            {
+                action.Invoke(value);
+            }
+        }
+
+        protected virtual void RaisePropertyChanged([CallerMemberName] string propertyName = null)
+        {
+            this.PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
+        }
+    }
+}