ListView 视图（View）

自定义视图，设置默认ListView,ListViewItems默认样式

public class VirtualStackPanelView : ViewBase
    {
        public static readonly DependencyProperty OrientationProperty =
            VirtualStackPanel.OrientationProperty.AddOwner(typeof(VirtualStackPanelView));

        public Orientation Orientation
        {
            get { return (Orientation)GetValue(OrientationProperty); }
            set { SetValue(OrientationProperty, value); }
        }

        public static readonly DependencyProperty SmallChangesProperty =
           VirtualStackPanel.SmallChangesProperty.AddOwner(typeof(VirtualStackPanelView));

        public uint SmallChanges
        {
            get { return (uint)GetValue(SmallChangesProperty); }
            set { SetValue(SmallChangesProperty, value); }
        }

        public static readonly DependencyProperty ItemContainerStyleProperty =
            ItemsControl.ItemContainerStyleProperty.AddOwner(typeof(VirtualStackPanelView));

        public Style ItemContainerStyle
        {
            get { return (Style)GetValue(ItemContainerStyleProperty); }
            set { SetValue(ItemContainerStyleProperty, value); }
        }

        public static readonly DependencyProperty ItemTemplateProperty =
            ItemsControl.ItemTemplateProperty.AddOwner(typeof(VirtualStackPanelView));

        public DataTemplate ItemTemplate
        {
            get { return (DataTemplate)GetValue(ItemTemplateProperty); }
            set { SetValue(ItemTemplateProperty, value); }
        }

        public static readonly DependencyProperty ItemWidthProperty =
            VirtualStackPanel.ItemWidthProperty.AddOwner(typeof(VirtualStackPanelView));

        public double ItemWidth
        {
            get { return (double)GetValue(ItemWidthProperty); }
            set { SetValue(ItemWidthProperty, value); }
        }

        public static readonly DependencyProperty ItemHeightProperty =
            VirtualStackPanel.ItemHeightProperty.AddOwner(typeof(VirtualStackPanelView));

        public double ItemHeight
        {
            get { return (double)GetValue(ItemHeightProperty); }
            set { SetValue(ItemHeightProperty, value); }
        }

        public static readonly DependencyProperty HorizontalContentAlignmentProperty =
            StackPanel.HorizontalAlignmentProperty.AddOwner(typeof(VirtualStackPanelView));

        public HorizontalAlignment HorizontalContentAlignment
        {
            get { return (HorizontalAlignment)GetValue(HorizontalContentAlignmentProperty); }
            set { SetValue(HorizontalContentAlignmentProperty, value); }
        }

        public static readonly DependencyProperty CacheItemCountProperty =
            DependencyProperty.Register("CacheItemCount", typeof(int),
            typeof(VirtualStackPanelView), new UIPropertyMetadata(0));

        public int CacheItemCount
        {
            get { return (int)GetValue(CacheItemCountProperty); }
            set { SetValue(CacheItemCountProperty, value); }
        }

        private GridViewColumnCollection _columns = new GridViewColumnCollection();
        public GridViewColumnCollection Columns
        {
            get { return _columns; }
        }

        public static readonly DependencyProperty ColumnHeaderContainerStyleProperty =
            GridView.ColumnHeaderContainerStyleProperty.AddOwner(typeof(VirtualStackPanelView));
        public Style ColumnHeaderContainerStyle
        {
            get { return (Style)GetValue(ColumnHeaderContainerStyleProperty); }
            set { SetValue(ColumnHeaderContainerStyleProperty, value); }
        }

        public static readonly DependencyProperty ColumnHeaderTemplateSelectorProperty =
            GridView.ColumnHeaderTemplateSelectorProperty.AddOwner(typeof(VirtualStackPanelView));
        public static readonly DependencyProperty ColumnHeaderStringFormatProperty =
             GridView.ColumnHeaderStringFormatProperty.AddOwner(typeof(VirtualStackPanelView));
        public static readonly DependencyProperty AllowsColumnReorderProperty =
            GridView.AllowsColumnReorderProperty.AddOwner(typeof(VirtualStackPanelView));
        public static readonly DependencyProperty ColumnHeaderContextMenuProperty =
            GridView.ColumnHeaderContextMenuProperty.AddOwner(typeof(VirtualStackPanelView));
        public static readonly DependencyProperty ColumnHeaderToolTipProperty =
            GridView.ColumnHeaderToolTipProperty.AddOwner(typeof(VirtualStackPanelView));

        protected override object DefaultStyleKey
        {
            get
            {
                return new ComponentResourceKey(GetType(), "virtualStackPanelViewDSK");
            }
        }

        protected override object ItemContainerDefaultStyleKey
        {
            get
            {
                return new ComponentResourceKey(GetType(), "virtualStackPanelViewItemDSK");
            }
        }
    }

查看ListView源码发现，当视图改变的时候,用当前视图的DefaultStyleKey，ItemContainerDefaultStyleKey设置ListView的默认样式和项容器样式，对于默认视图和我们自定义的视图

 public class ListView : ListBox
     {
         public static readonly DependencyProperty ViewProperty;
         private ViewBase _previousView;
         public ViewBase View
         {
             get
             {
                 return (ViewBase)base.GetValue(ListView.ViewProperty);
             }
             set
             {
                 base.SetValue(ListView.ViewProperty, value);
             }
         }
         static ListView()
         {
             ListView.ViewProperty = DependencyProperty.Register("View", typeof(ViewBase), typeof(ListView), new PropertyMetadata(new PropertyChangedCallback(ListView.OnViewChanged)));
             ListBox.SelectionModeProperty.OverrideMetadata(typeof(ListView), new FrameworkPropertyMetadata(SelectionMode.Extended));
         }
         private static void OnViewChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
         {
             ListView listView = (ListView)d;
             ViewBase viewBase = (ViewBase)e.OldValue;
             ViewBase viewBase2 = (ViewBase)e.NewValue;
             if (viewBase2 != null)
             {
                 if (viewBase2.IsUsed)
                 {
                     throw new InvalidOperationException(SR.Get("ListView_ViewCannotBeShared"));
                 }
                 viewBase2.IsUsed = true;
             }
             listView._previousView = viewBase;
             listView.ApplyNewView();
             listView._previousView = viewBase2;
             ListViewAutomationPeer listViewAutomationPeer = UIElementAutomationPeer.FromElement(listView) as ListViewAutomationPeer;
             if (listViewAutomationPeer != null)
             {
                 if (listViewAutomationPeer.ViewAutomationPeer != null)
                 {
                     listViewAutomationPeer.ViewAutomationPeer.ViewDetached();
                 }
                 if (viewBase2 != null)
                 {
                     listViewAutomationPeer.ViewAutomationPeer = viewBase2.GetAutomationPeer(listView);
                 }
                 else
                 {
                     listViewAutomationPeer.ViewAutomationPeer = null;
                 }
                 listViewAutomationPeer.InvalidatePeer();
             }
             if (viewBase != null)
             {
                 viewBase.IsUsed = false;
             }
         }
         protected override void PrepareContainerForItemOverride(DependencyObject element, object item)
         {
             base.PrepareContainerForItemOverride(element, item);
             ListViewItem listViewItem = element as ListViewItem;
             if (listViewItem != null)
             {
                 ViewBase view = this.View;
                 if (view != null)
                 {
                     listViewItem.SetDefaultStyleKey(view.ItemContainerDefaultStyleKey);
                     view.PrepareItem(listViewItem);
                     return;
                 }
                 listViewItem.ClearDefaultStyleKey();
             }
         }
                 private void ApplyNewView()
         {
             ViewBase view = this.View;
             if (view != null)
             {
                 base.DefaultStyleKey = view.DefaultStyleKey;
             }
             else
             {
                 base.ClearValue(FrameworkElement.DefaultStyleKeyProperty);
             }
             if (base.IsLoaded)
             {
                 base.ItemContainerGenerator.Refresh();
             }
         }
       }

定义ListView和ListViewItem的样式，自定义视图里的DefaultStyleKey和ItemContainerDefaultStyleKey就是我们这里设置的样式

 <Style x:Key="{ComponentResourceKey TypeInTargetAssembly={x:Type uc:VirtualStackPanelView}, ResourceId=virtualStackPanelViewDSK}"
                                         TargetType="{x:Type ListView}"
        >
         <Setter Property="HorizontalContentAlignment" Value="Stretch"/>

         <Setter Property="ItemContainerStyle"
           Value="{Binding (ListView.View).ItemContainerStyle,
           RelativeSource={RelativeSource Self}}"/>

         <Setter Property="ItemTemplate"
           Value="{Binding (ListView.View).ItemTemplate,
           RelativeSource={RelativeSource Self}}"/>
         <Setter Property="ItemsPanel">
             <Setter.Value>
                 <ItemsPanelTemplate>
                     <uc:VirtualStackPanel Width="{Binding (FrameworkElement.ActualWidth),
                    RelativeSource={RelativeSource AncestorType=ScrollContentPresenter}}"
                    Orientation="{Binding (ListView.View).Orientation, RelativeSource={RelativeSource AncestorType=ListView}}"
                    SmallChanges="{Binding (ListView.View).SmallChanges, RelativeSource={RelativeSource AncestorType=ListView}}"
                    ItemWidth="{Binding (ListView.View).ItemWidth, RelativeSource={RelativeSource AncestorType=ListView}}"
                    MinWidth="{Binding ItemWidth, RelativeSource={RelativeSource Self}}"
                    ItemHeight="{Binding (ListView.View).ItemHeight, RelativeSource={RelativeSource AncestorType=ListView}}"
                    CacheItemCount="{Binding (ListView.View).CacheItemCount, RelativeSource={RelativeSource AncestorType=ListView}}"
                                          />

                 </ItemsPanelTemplate>
             </Setter.Value>
         </Setter>
     </Style>

     <Style x:Key="lvItemSelectStyle" TargetType="{x:Type ListViewItem}">
         <Style.Resources>
             <ResourceDictionary Source="pack://application:,,,/QuickZip.UserControls;component/Themes/Brushes.xaml" />
         </Style.Resources>
         <!--<Setter Property="Margin" Value="1,2,1,1"/>-->
         <Setter Property="HorizontalAlignment" Value="Stretch" />
         <Setter Property="HorizontalContentAlignment" Value="Left" />
         <Setter Property="VerticalContentAlignment" Value="Stretch" />

         <!--<Setter Property="Background" Value="{TemplateBinding ListViewItem.Background}" />-->
         <Setter Property="Template">
             <Setter.Value>
                 <ControlTemplate TargetType="{x:Type ListBoxItem}">
                     <Border x:Name="border" BorderBrush="{StaticResource LightBorderBrush}"
                             BorderThickness="" Padding="" Background="{TemplateBinding Background}" >
                             <ContentPresenter Margin="5,0" />
                     </Border>
                     <ControlTemplate.Triggers>
                         <MultiTrigger>
                             <MultiTrigger.Conditions>
                                 <Condition Property="IsMouseOver" Value="True" />
                                 <Condition Property="IsSelected" Value="False"/>
                             </MultiTrigger.Conditions>
                             <Setter Property="Background" Value="{StaticResource HotTrackBrush}" />
                             <Setter TargetName="border" Property="Padding" Value="" />
                             <Setter TargetName="border" Property="BorderThickness" Value="" />
                         </MultiTrigger>
                         <Trigger Property="IsSelected" Value="True">
                             <Setter Property="Background" Value="{StaticResource SelectedBackgroundBrush}" />
                             <Setter TargetName="border" Property="Padding" Value="" />
                             <Setter TargetName="border" Property="BorderThickness" Value="" />
                         </Trigger>
                         <Trigger Property="uc:SelectionHelper.IsDragging" Value="True">
                             <Setter Property="Background" Value="{StaticResource HotTrackBrush}" />
                             <Setter TargetName="border" Property="Padding" Value="" />
                             <Setter TargetName="border" Property="BorderThickness" Value="" />
                         </Trigger>
                     </ControlTemplate.Triggers>
                 </ControlTemplate>
             </Setter.Value>
         </Setter>
     </Style>

     <Style x:Key="{ComponentResourceKey TypeInTargetAssembly={x:Type uc:VirtualStackPanelView}, ResourceId=virtualStackPanelViewItemDSK}"
            TargetType="{x:Type ListViewItem}" BasedOn="{StaticResource lvItemSelectStyle}" >
     </Style>

设置我们的视图，在视图中定义我么的ItemTemplate样式，用于填充项容器的ContentPresenter的内容

 <uc:VirtualWrapPanelView x:Key="IconView"  ColumnHeaderContainerStyle="{StaticResource ColumnHeaderContainerStyle}"
                              ItemHeight="{Binding RelativeSource={RelativeSource AncestorType=uc:FileList2}, Path=ViewSize, Converter={StaticResource iac}}"
                              ItemWidth="{Binding RelativeSource={RelativeSource AncestorType=uc:FileList2}, Path=ViewSize, Converter={StaticResource iac}}"
                              SmallChanges="{Binding Path=ItemHeight, RelativeSource={RelativeSource Self}}"
                              CacheItemCount=""
                              HorizontalContentAlignment="Left" >
         <uc:VirtualWrapPanelView.ItemTemplate>
             <DataTemplate>
                 <DockPanel Margin="2,1,1,0">
                     <Image
                            x:Name="img" DockPanel.Dock="Top" HorizontalAlignment="Center" Stretch= "UniformToFill"
                            Height="{Binding RelativeSource={RelativeSource AncestorType=uc:FileList2}, Path=ViewSize}"
                            Width="{Binding RelativeSource={RelativeSource AncestorType=uc:FileList2}, Path=ViewSize}"
                            Source="{Binding JumboIcon.Item2.Value}"
                             />
                     <StackPanel Orientation="Horizontal" HorizontalAlignment="Center">
                         <uc:EditBox x:Name="eb" Margin="0,0"
                         DisplayValue="{Binding EmbeddedModel.Label}"
                         ActualValue="{Binding Name, Mode=TwoWay}"
                         IsEditable="{Binding EmbeddedModel.IsEditable}"
                         IsEditing="{Binding IsEditing, Mode=TwoWay}"
                         />
                         <TextBlock Text="[*]" Visibility="{Binding EmbeddedModel.IsEncrypted, Converter={StaticResource btv}}" />
                     </StackPanel>
                 </DockPanel>
             </DataTemplate>
         </uc:VirtualWrapPanelView.ItemTemplate>
         <uc:VirtualWrapPanelView.Columns>
             <GridViewColumn Width="" Header="{x:Static trans:Texts.strHeaderFile}"  uc:FileList2.SortPropertyName="sortByFullName" />
             <GridViewColumn Width="" Header="{x:Static trans:Texts.strHeaderType}" uc:FileList2.SortPropertyName="sortByType" />
             <GridViewColumn Width="" Header="{x:Static trans:Texts.strHeaderTime}" uc:FileList2.SortPropertyName="sortByLastWriteTime" />
             <GridViewColumn Width="" Header="{x:Static trans:Texts.strHeaderSize}" uc:FileList2.SortPropertyName="sortByLength" />
         </uc:VirtualWrapPanelView.Columns>
     </uc:VirtualWrapPanelView>