Synchronize the Net40

Net40/HandyControl_Net40/Controls/Panel/SimplePanel.cs

@@ -0,0 +1,44 @@
+using System;
+using System.Windows;
+using System.Windows.Controls;
+
+namespace HandyControl.Controls
+{
+    /// <summary>
+    ///     用以代替Grid
+    /// </summary>
+    /// <remarks>
+    ///     当不需要Grid的行、列分隔等功能时建议用此轻量级类代替
+    /// </remarks>
+    public class SimplePanel : Panel
+    {
+        protected override Size MeasureOverride(Size availableSize)
+        {
+            var maxSize = new Size();
+            var children = InternalChildren;
+
+            for (int i = 0, count = children.Count; i < count; ++i)
+            {
+                var child = children[i];
+                if (child != null)
+                {
+                    child.Measure(availableSize);
+                    maxSize.Width = Math.Max(maxSize.Width, child.DesiredSize.Width);
+                    maxSize.Height = Math.Max(maxSize.Height, child.DesiredSize.Height);
+                }
+            }
+
+            return maxSize;
+        }
+
+        protected override Size ArrangeOverride(Size arrangeSize)
+        {
+            foreach (UIElement child in InternalChildren)
+            {
+                child?.Arrange(new Rect(arrangeSize));
+            }
+
+            return arrangeSize;
+        }
+    }
+}