刷新按钮

zcbenz · Mar 3, 2012 · 439f8bf · 439f8bf
1 parent 0c16edb
commit 439f8bf
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Showing 4 changed files with 57 additions and 34 deletions.
diff --git a/BoardPage.xaml b/BoardPage.xaml
@@ -77,7 +77,7 @@
     <phone:PhoneApplicationPage.ApplicationBar>
         <shell:ApplicationBar IsVisible="True" IsMenuEnabled="False">
             <shell:ApplicationBarIconButton IconUri="/Images/new.png" Text="发帖"/>
-            <shell:ApplicationBarIconButton IconUri="/Images/refresh.png" Text="刷新"/>
+            <shell:ApplicationBarIconButton Click="Refresh_Click" IconUri="/Images/refresh.png" Text="刷新"/>
             <!--<shell:ApplicationBar.MenuItems>
                 <shell:ApplicationBarMenuItem Text="MenuItem 1"/>
                 <shell:ApplicationBarMenuItem Text="MenuItem 2"/>

diff --git a/BoardPage.xaml.cs b/BoardPage.xaml.cs
@@ -40,30 +40,22 @@ protected override void OnNavigatedTo(NavigationEventArgs e)
                     App.ViewModel.CurrentBoard.EnglishName = board;
                     App.ViewModel.CurrentBoard.Description = this.NavigationContext.QueryString["description"];
 
-                    LoadMore.IsEnabled = false;
-                    App.ViewModel.CurrentBoard.IsLoaded = false;
-
                     // 清空已有内容
                     if (App.ViewModel.CurrentBoard.Topics != null)
                         App.ViewModel.CurrentBoard.Topics.Clear();
 
-                    // 重新加载
-                    App.Service.Board(board, currentPage * pageSize, pageSize, delegate(ObservableCollection<TopicViewModel> topics, bool success, string error)
-                    {
-                        // 判断后面是否还有内容
-                        if (error == null && topics.Count < pageSize)
-                            LoadMore.IsEnabled = false;
-                        else
-                            LoadMore.IsEnabled = true;
-
-                        App.ViewModel.CurrentBoard.IsLoaded = true;
-                        if (error == null)
-                            App.ViewModel.CurrentBoard.Topics = topics;
-                    });
+                    currentPage = 0;
+                    LoadTopics();
                 }
             }
         }
 
+        private void Refresh_Click(object sender, EventArgs e)
+        {
+            currentPage = 0;
+            LoadTopics();
+        }
+
         private void LoadMore_Click(object sender, RoutedEventArgs e)
         {
             App.ViewModel.CurrentBoard.IsLoaded = false;
@@ -104,5 +96,24 @@ private void Topic_Selected(object sender, SelectionChangedEventArgs e)
             }
         }
 
+        private void LoadTopics()
+        {
+            LoadMore.IsEnabled = false;
+            App.ViewModel.CurrentBoard.IsLoaded = false;
+
+            // 重新加载
+            App.Service.Board(App.ViewModel.CurrentBoard.EnglishName, currentPage * pageSize, pageSize, delegate(ObservableCollection<TopicViewModel> topics, bool success, string error)
+            {
+                // 判断后面是否还有内容
+                if (error == null && topics.Count < pageSize)
+                    LoadMore.IsEnabled = false;
+                else
+                    LoadMore.IsEnabled = true;
+
+                App.ViewModel.CurrentBoard.IsLoaded = true;
+                if (error == null)
+                    App.ViewModel.CurrentBoard.Topics = topics;
+            });
+        }
     }
 }
diff --git a/TopicPage.xaml b/TopicPage.xaml
@@ -74,7 +74,7 @@
     <phone:PhoneApplicationPage.ApplicationBar>
         <shell:ApplicationBar IsVisible="True" IsMenuEnabled="True">
             <shell:ApplicationBarIconButton IconUri="/Images/new.png" Text="回复"/>
-            <shell:ApplicationBarIconButton IconUri="/Images/refresh.png" Text="刷新"/>
+            <shell:ApplicationBarIconButton Click="Refresh_Click" IconUri="/Images/refresh.png" Text="刷新"/>
         </shell:ApplicationBar>
     </phone:PhoneApplicationPage.ApplicationBar>
 

diff --git a/TopicPage.xaml.cs b/TopicPage.xaml.cs
@@ -71,28 +71,40 @@ protected override void OnNavigatedTo(NavigationEventArgs e)
                     App.ViewModel.CurrentTopic.Board = board;
                     App.ViewModel.CurrentTopic.Title = this.NavigationContext.QueryString["title"];
 
-                    App.ViewModel.CurrentTopic.IsLoaded = false;
-                    LoadMore.IsEnabled = false;
-
                     // 清空已有内容
                     if (App.ViewModel.CurrentTopic.Topics != null)
                         App.ViewModel.CurrentTopic.Topics.Clear();
 
-                    // 重新加载
-                    App.Service.Topic(board, id, currentPage * pageSize, pageSize, delegate(ObservableCollection<TopicViewModel> topics, bool success, string error)
-                    {
-                        // 判断后面是否还有内容
-                        if (error == null && topics.Count < pageSize)
-                            LoadMore.IsEnabled = false;
-                        else
-                            LoadMore.IsEnabled = true;
-
-                        App.ViewModel.CurrentTopic.IsLoaded = true;
-                        if (error == null)
-                            App.ViewModel.CurrentTopic.Topics = topics;
-                    });
+                    currentPage = 0;
+                    LoadTopics();
                 }
             }
         }
+
+        private void Refresh_Click(object sender, EventArgs e)
+        {
+            currentPage = 0;
+            LoadTopics();
+        }
+
+        private void LoadTopics()
+        {
+            App.ViewModel.CurrentTopic.IsLoaded = false;
+            LoadMore.IsEnabled = false;
+
+            // 重新加载
+            App.Service.Topic(App.ViewModel.CurrentTopic.Board, App.ViewModel.CurrentTopic.Id, currentPage * pageSize, pageSize, delegate(ObservableCollection<TopicViewModel> topics, bool success, string error)
+            {
+                // 判断后面是否还有内容
+                if (error == null && topics.Count < pageSize)
+                    LoadMore.IsEnabled = false;
+                else
+                    LoadMore.IsEnabled = true;
+
+                App.ViewModel.CurrentTopic.IsLoaded = true;
+                if (error == null)
+                    App.ViewModel.CurrentTopic.Topics = topics;
+            });
+        }
     }
 }