Synchronize the Net40

Net40/HandyControl_Net40/Tools/Extension/EnumerableExtension.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace HandyControl.Tools.Extension
+{
+    public static class EnumerableExtension
+    {
+        public static IEnumerable<TSource> Do<TSource>(this IEnumerable<TSource> source, Action<TSource> predicate)
+        {
+            var enumerable = source as IList<TSource> ?? source.ToList();
+            foreach (var item in enumerable)
+            {
+                predicate.Invoke(item);
+            }
+
+            return enumerable;
+        }
+    }
+}

Net40/HandyControl_Net40/Tools/Helper/ValidateHelper.cs

@@ -3,17 +3,41 @@
     /// <summary>
     ///     验证帮助类
     /// </summary>
-    internal class ValidateHelper
+    public class ValidateHelper
     {
         /// <summary>
         ///     是否在浮点数范围内
         /// </summary>
         /// <param name="value"></param>
         /// <returns></returns>
-        internal static bool IsInRangeOfDouble(object value)
+        public static bool IsInRangeOfDouble(object value)
         {
             var v = (double)value;
             return !(double.IsNaN(v) || double.IsInfinity(v));
         }
+
+        /// <summary>
+        ///     是否在正浮点数范围内
+        /// </summary>
+        /// <param name="value"></param>
+        /// <param name="includeZero"></param>
+        /// <returns></returns>
+        public static bool IsInRangeOfPosDouble(object value, bool includeZero = false)
+        {
+            var v = (double)value;
+            return !(double.IsNaN(v) || double.IsInfinity(v)) && (includeZero ? v >= 0 : v > 0);
+        }
+
+        /// <summary>
+        ///     是否在正浮点数范围内
+        /// </summary>
+        /// <param name="value"></param>
+        /// <param name="includeZero"></param>
+        /// <returns></returns>
+        public static bool IsInRangeOfNegDouble(object value, bool includeZero = false)
+        {
+            var v = (double)value;
+            return !(double.IsNaN(v) || double.IsInfinity(v)) && (includeZero ? v <= 0 : v < 0);
+        }
     }
 }

Net40/HandyControl_Net40/Tools/Helper/VisualHelper.cs

@@ -4,9 +4,9 @@ using System.Windows.Media;
 
 namespace HandyControl.Tools
 {
-    internal class VisualHelper
+    public class VisualHelper
     {
-        public static VisualStateGroup TryGetVisualStateGroup(DependencyObject dependencyObject, string groupName)
+        internal static VisualStateGroup TryGetVisualStateGroup(DependencyObject dependencyObject, string groupName)
         {
             var root = GetImplementationRoot(dependencyObject);
             if (root == null)
@@ -20,11 +20,13 @@ namespace HandyControl.Tools
                 .FirstOrDefault(group => string.CompareOrdinal(groupName, group.Name) == 0);
         }
 
-        public static FrameworkElement GetImplementationRoot(DependencyObject dependencyObject)
+        internal static FrameworkElement GetImplementationRoot(DependencyObject dependencyObject)
         {
             return 1 == VisualTreeHelper.GetChildrenCount(dependencyObject)
                 ? VisualTreeHelper.GetChild(dependencyObject, 0) as FrameworkElement
                 : null;
         }
+
+        public static Window GetActiveWindow() => Application.Current.Windows.OfType<Window>().SingleOrDefault(x => x.IsActive);
     }
 }