Fix filtering

Author: shana

src/GitHub.UI/Behaviours/AddEmptyItemToList.cs

@@ -33,14 +33,13 @@ protected override void OnAttached()
                                 return;
                             defaultValue = PropertyPathHelper.GetValue(binding.ResolvedSource, binding.ResolvedSourcePropertyName);
                         }
-                        dynamic items = AssociatedObject.ItemsSource;
-                        var list = items as IList;
+                        var list = AssociatedObject.ItemsSource as IList;
                         Debug.Assert(list != null, "ItemsSource data source is not an IList, cannot change it.");
                         if (list == null)
                             return;
                         try
                         {
-                            items.Insert(0, defaultValue);
+                            list.Insert(0, defaultValue);
                         }
                         catch (Exception ex)
                         {
@@ -53,14 +52,13 @@ protected override void OnAttached()
                     }
                     else if (AssociatedObject.SelectedIndex == 0)
                     {
-                        dynamic items = AssociatedObject.ItemsSource;
-                        var list = items as IList;
+                        var list = AssociatedObject.ItemsSource as IList;
                         Debug.Assert(list != null, "ItemsSource data source is not an IList, cannot change it.");
                         Debug.Assert(list.Count > 0, "ItemsSource data source is empty, something went wrong.");
                         if (list == null || list.Count == 0)
                             return;
-                        if (items[0] == defaultValue)
-                            items.RemoveAt(0);
+                        if (list[0] == defaultValue)
+                            list.RemoveAt(0);
                     }
                 }
                 if (e.RemovedItems.Count > 0)

src/GitHub.VisualStudio/UI/Views/PullRequestListView.xaml

@@ -156,7 +156,13 @@
                              Margin="5,0,0,0"
                              VerticalAlignment="Center"
                              Content="{Binding SelectedState}"
-                             HasDropDown="True" />
+                             HasDropDown="True">
+          <i:Interaction.Triggers>
+            <i:EventTrigger EventName="Click">
+              <ui:OpenPopupAction TargetName="statePopup" />
+            </i:EventTrigger>
+          </i:Interaction.Triggers>
+        </ui:GitHubActionLink>
 
         <Popup x:Name="statePopup"
                AllowsTransparency="True"