Merge pull request #3338 from shadowofsilicon/InspectionsExplorer

Performance improvement to Inspections Explorer

Author: retailcoder

RetailCoder.VBE/UI/Inspections/InspectionResultsControl.xaml

@@ -461,7 +461,7 @@
         </Style>
     </UserControl.Resources>
 
-    <Grid>
+    <Grid UseLayoutRounding="True">
         <Grid.RowDefinitions>
             <RowDefinition Height="30"/>
             <RowDefinition Height="*" MinHeight="64" />
@@ -540,8 +540,9 @@
         <controls:GroupingGrid Grid.Row="1"
                                ShowGroupingItemCount="True"
                                SelectedItem="{Binding SelectedItem}"
-                               ItemsSource="{Binding Source={StaticResource ResultsByInspectionType}}"
-                               Visibility="{Binding IsChecked, ElementName=GroupByInspectionType, Converter={StaticResource BoolToVisibility}}">
+                               ItemsSource="{Binding Source={StaticResource ResultsByInspectionType}, IsAsync=True}"
+                               Visibility="{Binding IsChecked, ElementName=GroupByInspectionType, Converter={StaticResource BoolToVisibility}}"
+                               VirtualizingPanel.IsVirtualizingWhenGrouping="True">
             <DataGrid.Columns>
                 <DataGridTemplateColumn Header="{Resx ResxName=Rubberduck.UI.RubberduckUI, Key=CodeInspectionResults_Type}" SortDirection="Descending">
                     <DataGridTemplateColumn.CellTemplate>
@@ -558,8 +559,9 @@
         <controls:GroupingGrid Grid.Row="1"
                                ShowGroupingItemCount="True"
                                SelectedItem="{Binding SelectedItem}"
-                               ItemsSource="{Binding Source={StaticResource ResultsByModule}}"
-                               Visibility="{Binding IsChecked, ElementName=GroupByLocation, Converter={StaticResource BoolToVisibility}}">
+                               ItemsSource="{Binding Source={StaticResource ResultsByModule}, IsAsync=True}"
+                               Visibility="{Binding IsChecked, ElementName=GroupByLocation, Converter={StaticResource BoolToVisibility}}"
+                               VirtualizingPanel.IsVirtualizingWhenGrouping="True">
             <DataGrid.Columns>
                 <DataGridTemplateColumn Header="{Resx ResxName=Rubberduck.UI.RubberduckUI, Key=CodeInspectionResults_Type}">
                     <DataGridTemplateColumn.CellTemplate>

RetailCoder.VBE/UI/Inspections/InspectionResultsViewModel.cs

@@ -301,9 +301,11 @@ private async void RefreshInspections()
                     .ToList();
             }
 
+            Results = new ObservableCollection<IInspectionResult>(results);
+
             UiDispatcher.Invoke(() =>
             {
-                Results = new ObservableCollection<IInspectionResult>(results);
+                //Results = new ObservableCollection<IInspectionResult>(results);
 
                 IsBusy = false;
                 IsRefreshing = false;