拖放不工作的GridView

Question

我想在我的代碼來實現類似的功能： http://www.codeproject.com/Articles/536519/Extending-GridView-with-Drag-and-Drop-for-Grouping

我繼續從該項目複製相關文件（Customized.xaml，Customized.xaml.cs，分組.xaml，Grouped.xaml.cs和GridViewEx.cs）到我的項目。 我已經改名爲必要的項目爲它來編譯，但是我現在面臨與GridView控件不滾動和項目的重新排序不工作在觸摸屏的一個問題。 （奇怪的是，我仍然可以用鼠標移動物品，但Drop沒有一致地註冊）。 好像有某種佈局問題或必須有滾動不是在所有工作中，將一個原因，只有放棄與鼠標的工作，和拖放功能工作的約50％的鼠標的時間。 有什麼建議嗎？

Answer 1

我不知道，如果你還沒有，現在還是想通了你的問題，但我最終搞清楚爲什麼我有這個問題。它證明你不僅需要導入GridViewEx.cs和相關的Grouped.xaml和Grouped.xaml.cs，還要導入「generic.xaml」中的內容。

<Style TargetType="local:GridViewEx"> 
    <Setter Property="Padding" Value="0,0,0,10" /> 
    <Setter Property="IsTabStop" Value="False" /> 
    <Setter Property="TabNavigation" Value="Once" /> 
    <Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Auto"/> 
    <Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Disabled"/> 
    <Setter Property="ScrollViewer.HorizontalScrollMode" Value="Enabled" /> 
    <Setter Property="ScrollViewer.IsHorizontalRailEnabled" Value="False" /> 
    <Setter Property="ScrollViewer.VerticalScrollMode" Value="Disabled" /> 
    <Setter Property="ScrollViewer.IsVerticalRailEnabled" Value="False" /> 
    <Setter Property="ScrollViewer.ZoomMode" Value="Disabled" /> 
    <Setter Property="ScrollViewer.IsDeferredScrollingEnabled" Value="False" /> 
    <Setter Property="ScrollViewer.BringIntoViewOnFocusChange" Value="True" /> 
    <Setter Property="IsSwipeEnabled" Value="True" /> 
    <Setter Property="Template"> 
     <Setter.Value> 
      <ControlTemplate TargetType="local:GridViewEx"> 
       <Border BorderBrush="{TemplateBinding BorderBrush}" 
         Background="{TemplateBinding Background}" 
         BorderThickness="{TemplateBinding BorderThickness}"> 
        <ScrollViewer x:Name="ScrollViewer" 
             TabNavigation="{TemplateBinding TabNavigation}" 
             HorizontalScrollMode="{TemplateBinding ScrollViewer.HorizontalScrollMode}" 
             HorizontalScrollBarVisibility="{TemplateBinding ScrollViewer.HorizontalScrollBarVisibility}" 
             IsHorizontalScrollChainingEnabled="{TemplateBinding ScrollViewer.IsHorizontalScrollChainingEnabled}" 
             VerticalScrollMode="{TemplateBinding ScrollViewer.VerticalScrollMode}" 
             VerticalScrollBarVisibility="{TemplateBinding ScrollViewer.VerticalScrollBarVisibility}" 
             IsVerticalScrollChainingEnabled="{TemplateBinding ScrollViewer.IsVerticalScrollChainingEnabled}" 
             IsHorizontalRailEnabled="{TemplateBinding ScrollViewer.IsHorizontalRailEnabled}" 
             IsVerticalRailEnabled="{TemplateBinding ScrollViewer.IsVerticalRailEnabled}" 
             ZoomMode="{TemplateBinding ScrollViewer.ZoomMode}" 
             IsDeferredScrollingEnabled="{TemplateBinding ScrollViewer.IsDeferredScrollingEnabled}" 
             BringIntoViewOnFocusChange="{TemplateBinding ScrollViewer.BringIntoViewOnFocusChange}"> 
         <StackPanel Orientation="Horizontal"> 
          <Border Width="60" x:Name="NewGroupPlaceHolderFirst" 
            Background="Transparent" Padding="{TemplateBinding Padding}" 
            Visibility="{Binding AllowNewGroup, Converter={StaticResource VisibilityConverter}, RelativeSource={RelativeSource TemplatedParent}}"/> 
          <ItemsPresenter 
           Header="{TemplateBinding Header}" 
           HeaderTemplate="{TemplateBinding HeaderTemplate}" 
           HeaderTransitions="{TemplateBinding HeaderTransitions}" 
           Padding="{TemplateBinding Padding}"/> 
          <Border Width="60" x:Name="NewGroupPlaceHolderLast" 
            Background="Transparent" Padding="{TemplateBinding Padding}" 
            Visibility="{Binding AllowNewGroup, Converter={StaticResource VisibilityConverter}, RelativeSource={RelativeSource TemplatedParent}}"/> 
         </StackPanel> 
        </ScrollViewer> 
       </Border> 
      </ControlTemplate> 
     </Setter.Value> 
    </Setter> 
</Style> 

我聯繫這個風格我Grouped.xaml後，它的工作如預期。希望這可以幫助。