fixed #155

src/Shared/HandyControl_Shared/Controls/Rate/Rate.cs

@@ -44,6 +44,8 @@ namespace HandyControl.Controls
 
         private bool _isLoaded;
 
+        private bool _updateItems;
+
         public Rate()
         {
             AddHandler(RateItem.SelectedChangedEvent, new RoutedEventHandler(RateItemSelectedChanged));
@@ -52,8 +54,15 @@ namespace HandyControl.Controls
             Loaded += (s, e) =>
             {
                 if (DesignerHelper.IsInDesignMode) return;
+
+                _updateItems = false;
+                OnApplyTemplateInternal();
+                _updateItems = true;
+                UpdateItems();
+
                 if (_isLoaded) return;
                 _isLoaded = true;
+
                 if (Value <= 0)
                 {
                     if (DefaultValue > 0)
@@ -164,21 +173,30 @@ namespace HandyControl.Controls
             return new RateItem();
         }
 
-        public override void OnApplyTemplate()
+        private void OnApplyTemplateInternal()
-        {
-            if (!_isLoaded)
         {
             Items.Clear();
 
             for (var i = 1; i <= Count; i++)
             {
-                    Items.Add(new RateItem
+                var item = new RateItem
                 {
                     Index = i
-                    });
+                };
+
+                Items.Add(item);
             }
         }
 
+        public override void OnApplyTemplate()
+        {
+            if (!_isLoaded)
+            {
+                _updateItems = true;
+                OnApplyTemplateInternal();
+                _updateItems = false;
+            }
+
             base.OnApplyTemplate();
         }
 
@@ -191,7 +209,7 @@ namespace HandyControl.Controls
 
         protected override void UpdateItems()
         {
-            if (!_isLoaded) return;
+            if (!_isLoaded || !_updateItems) return;
             var count = (int) Value;
 
             for (var i = 0; i < count; i++)

src/Shared/HandyControl_Shared/Controls/Rate/RateItem.cs

@@ -46,7 +46,13 @@ namespace HandyControl.Controls
 
         public RateItem()
         {
-            Loaded += (s, e) => _isLoaded = true;
+            Loaded += (s, e) =>
+            {
+                if (_isLoaded) return;
+                _isLoaded = true;
+
+                OnApplyTemplate();
+            };
         }
 
         public bool AllowClear
@@ -87,7 +93,7 @@ namespace HandyControl.Controls
                 if (_isHalf == value) return;
                 _isHalf = value;
                 if (_icon == null) return;
-                _icon.Width = value ? ActualWidth / 2 : ActualWidth;
+                _icon.Width = value ? Width / 2 : Width;
             }
         }
 
@@ -134,7 +140,7 @@ namespace HandyControl.Controls
             if (IsReadOnly) return;
             if (!AllowHalf) return;
             var p = e.GetPosition(this);
-            IsHalf = p.X < ActualWidth / 2;
+            IsHalf = p.X < Width / 2;
         }
 
         public override void OnApplyTemplate()
@@ -147,7 +153,7 @@ namespace HandyControl.Controls
             {
                 if (_icon == null) return;
                 _icon.Show(IsSelected);
-                _icon.Width = IsHalf ? ActualWidth / 2 : ActualWidth;
+                _icon.Width = IsHalf ? Width / 2 : Width;
             }
         }
 
@@ -202,7 +208,7 @@ namespace HandyControl.Controls
                         if (AllowHalf)
                         {
                             var p = e.GetPosition(this);
-                            IsHalf = p.X < ActualWidth / 2;
+                            IsHalf = p.X < Width / 2;
                         }
                     }
                 }