support for .NET framework 3.5

Still have bugs

Net35/HandyControl_Net35/Data/Args/CancelRoutedEventArgs.cs

@@ -0,0 +1,13 @@
+using System.Windows;
+
+namespace HandyControl.Data
+{
+    public class CancelRoutedEventArgs : RoutedEventArgs
+    {
+        public CancelRoutedEventArgs(RoutedEvent routedEvent, object source) : base(routedEvent, source)
+        {
+        }
+
+        public bool Cancel { get; set; }
+    }
+}

Net35/HandyControl_Net35/Data/Args/FunctionEventArgs!1.cs

@@ -0,0 +1,19 @@
+using System.Windows;
+
+
+namespace HandyControl.Data
+{
+    public class FunctionEventArgs<T> : RoutedEventArgs
+    {
+        public FunctionEventArgs(T info)
+        {
+            Info = info;
+        }
+
+        public FunctionEventArgs(RoutedEvent routedEvent, object source) : base(routedEvent, source)
+        {
+        }
+
+        public T Info { get; set; }
+    }
+}