WpfのComboboxアイテム内のSelectAllチェックボックス

私は0〜63の整数値の項目を持つコンボボックスを持っています。私はすべてのオプションを選択して追加します。私はすべての項目を選択する必要がありますすべてを選択した場合、私はどのように働くことができますか？WpfのComboboxアイテム内のSelectAllチェックボックス

<DataTemplate x:Key="cmbIndex"> 
    <CheckBox IsChecked="{Binding Path=IsSelected, Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}" 
       Tag="{RelativeSource FindAncestor, AncestorType={x:Type ComboBox}}" 
       Content="{Binding Name}" Name="chkbox" 
       Click="CheckBox_Click"> 
    </CheckBox> 
</DataTemplate> 

<CollectionViewSource x:Key="coll" Source="{Binding Set2CmdList,UpdateSourceTrigger=PropertyChanged}"/> 
<ComboBox Grid.Row="0" SelectedIndex="{Binding Set2SelectedIndex}" 
      HorizontalAlignment="Left" Margin="80,0,0,0" 
      Height="20" VerticalAlignment="Center" Width="60" 
      FontFamily="Calibri" FontSize="12" > 

    <ComboBox.ItemsSource> 
     <CompositeCollection> 
      <!--<ComboBoxItem> 
       <CheckBox x:Name="all">Select All</CheckBox> 
      </ComboBoxItem>--> 
      <CollectionContainer Collection="{Binding Source={StaticResource coll}}"/> 
     </CompositeCollection> 
    </ComboBox.ItemsSource> 
    <ComboBox.Style> 
     <Style TargetType="{x:Type ComboBox}"> 
      <Setter Property="ItemTemplate" Value="{StaticResource cmbIndex}"/> 
     </Style> 
    </ComboBox.Style> 
</ComboBox>

ビューモデル：のviewmodelの

private List<GenericDescription> _Set2CmdList; 

public List<GenericDescription> Set2CmdList 
{ 
    get { return _Set2CmdList; } 
    set { _Set2CmdList = value; } 
}

コンストラクタ：

_CMDCollection = new ObservableCollection<int>(); 
_Set2CmdList = new List<GenericDescription>(); 
_Set2CmdList.Add(new GenericDescription() { Name="Select All",IsSelected=false }); 

for (int i = 0; i < 64; i++) 
{ 
    _CMDCollection.Add(i); 
    _Set2CmdList.Add(new GenericDescription() 
    { 
     Name = i.ToString(), 
     IsSelected = false 
    }); 
}

クラス：

public class GenericDescription 
{ 
    private string _Name; 

    public string Name 
    { 
     get { return _Name; } 
     set { _Name = value;} 
    } 

    private bool _IsSelected; 

    public bool IsSelected 
    { 
     get { return _IsSelected; } 
     set { _IsSelected = value; } 
    } 
}

出典

2016-12-14 Manjunath ST

あなたはこれが完了コントロールではありません、コントロールの下で注意を試すことができ、それは（あなたがNREや他のシナリオをチェックする必要があります）、あなたのヘッドスタートを与えます

public class MultiComboBox : ComboBox 
{ 
    static MultiComboBox() 
    { 
     DefaultStyleKeyProperty.OverrideMetadata(typeof(MultiComboBox), new FrameworkPropertyMetadata(typeof(MultiComboBox))); 
     EventManager.RegisterClassHandler(typeof(MultiComboBox), Selector.SelectedEvent, new RoutedEventHandler(OnSelected)); 
     EventManager.RegisterClassHandler(typeof(MultiComboBox), Selector.UnselectedEvent, new RoutedEventHandler(OnUnselected)); 
    } 

    CheckBox PART_SelectAll; 
    public override void OnApplyTemplate() 
    { 
     base.OnApplyTemplate(); 
     PART_SelectAll = base.GetTemplateChild("PART_SelectAll") as CheckBox; 
     PART_SelectAll.Checked += PART_SelectAll_Checked; 
     PART_SelectAll.Unchecked += PART_SelectAll_UnChecked; 
    } 

    private void PART_SelectAll_Checked(object sender, RoutedEventArgs e) 
    { 
     ProcessSelection(PART_SelectAll.IsChecked.Value); 
    } 
    private void PART_SelectAll_UnChecked(object sender, RoutedEventArgs e) 
    { 
     ProcessSelection(PART_SelectAll.IsChecked.Value); 

    } 

    internal void NotifySelectedItems(object item, bool isSelected) 
    { 

     if (SelectedItems == null) 
      SelectedItems = new List<Object>(); 
     if (SelectedItems != null) 
     { 
      if (isSelected) 
       SelectedItems.Add((item as MultiComboBoxItem).DataContext); 
      else 
       SelectedItems.Remove((item as MultiComboBoxItem).DataContext); 
     } 
    } 
    internal void SetSelectedItem(object item) 
    { 
     SetValue(SelectedItemProperty, item); 
    } 
    private void ProcessSelection(bool select) 
    { 
     foreach (var item in this.Items) 
     { 
      if(this.ItemsSource != null) 
      { 
       var cItem = this.ItemContainerGenerator.ContainerFromItem(item) as MultiComboBoxItem; 
       if(cItem != null) 
       { 
        cItem.SetValue(ComboBoxItem.IsSelectedProperty, select); 
       } 
      } 
     } 
    } 

    private static void OnSelected(object sender, RoutedEventArgs e) 
    { 
     e.Handled = true; 
    } 
    private static void OnUnselected(object sender, RoutedEventArgs e) 
    { 
     e.Handled = true; 
    } 

    public MultiComboBox() 
    { 

    } 

    public IList SelectedItems 
    { 
     get { return (IList)GetValue(SelectedItemsProperty); } 
     set { SetValue(SelectedItemsProperty, value); } 
    } 

    // Using a DependencyProperty as the backing store for SelectedItems. This enables animation, styling, binding, etc... 
    public static readonly DependencyProperty SelectedItemsProperty = 
     DependencyProperty.Register("SelectedItems", typeof(IList), typeof(MultiComboBox), new PropertyMetadata(null)); 

    protected override DependencyObject GetContainerForItemOverride() 
    { 
     var multiComboItem = new MultiComboBoxItem(); 
     multiComboItem.ParentComboBox = this; 
     return multiComboItem; 
    } 

    protected override void OnSelectionChanged(SelectionChangedEventArgs e) 
    { 
     base.OnSelectionChanged(e); 
    } 
} 

public class MultiComboBoxItem : ComboBoxItem 
{ 
    static MultiComboBoxItem() 
    { 
     DefaultStyleKeyProperty.OverrideMetadata(typeof(MultiComboBoxItem), new FrameworkPropertyMetadata(typeof(MultiComboBoxItem))); 
    } 

    public MultiComboBox ParentComboBox { get; set; } 

    protected override void OnSelected(RoutedEventArgs e) 
    { 
     ParentComboBox.NotifySelectedItems(this, true); 
     base.OnSelected(e); 
     if (ParentComboBox.SelectedItem == null) 
      ParentComboBox.SetValue(ComboBox.SelectedItemProperty, this.DataContext); 
    } 

    protected override void OnUnselected(RoutedEventArgs e) 
    { 
     ParentComboBox.NotifySelectedItems(this, false); 
     base.OnUnselected(e); 
     if (ParentComboBox.SelectedItems.Count == 0 || this.DataContext == ParentComboBox.SelectedItem) 
      ParentComboBox.ClearValue(ComboBox.SelectedItemProperty); 
    } 
}

と汎用ファイルで、コンボボックス用のテンプレートを追加し、以下の行を置き換える、

<ControlTemplate x:Key="ComboBoxTemplate" TargetType="{x:Type local:MultiComboBox}"> 
    <Grid x:Name="templateRoot" SnapsToDevicePixels="true"> 
     <Grid.ColumnDefinitions> 
      <ColumnDefinition Width="*" /> 
      <ColumnDefinition Width="0" MinWidth="{DynamicResource {x:Static SystemParameters.VerticalScrollBarWidthKey}}" /> 
     </Grid.ColumnDefinitions> 
     <Popup x:Name="PART_Popup" 
       Grid.ColumnSpan="2" 
       Margin="1" 
       AllowsTransparency="true" 
       IsOpen="{Binding IsDropDownOpen, 
           Mode=TwoWay, 
           RelativeSource={RelativeSource TemplatedParent}}" 
       Placement="Bottom" 
       PopupAnimation="{DynamicResource {x:Static SystemParameters.ComboBoxPopupAnimationKey}}"> 
      <Border x:Name="dropDownBorder" 
        Background="{DynamicResource {x:Static SystemColors.WindowBrushKey}}" 
        BorderBrush="{DynamicResource {x:Static SystemColors.WindowFrameBrushKey}}" 
        BorderThickness="1"> 
       <Grid> 
        <Grid.RowDefinitions> 
         <RowDefinition Height="Auto"/> 
         <RowDefinition/> 
        </Grid.RowDefinitions> 
        <CheckBox Grid.Row="0" Content="Select All" Name="PART_SelectAll"/> 
        <ScrollViewer Grid.Row="1" x:Name="DropDownScrollViewer"> 
         <Grid x:Name="grid" RenderOptions.ClearTypeHint="Enabled"> 
          <Canvas x:Name="canvas" 
           Width="0" 
           Height="0" 
           HorizontalAlignment="Left" 
           VerticalAlignment="Top"> 
           <Rectangle x:Name="opaqueRect" 
             Width="{Binding ActualWidth, 
                 ElementName=dropDownBorder}" 
             Height="{Binding ActualHeight, 
                 ElementName=dropDownBorder}" 
             Fill="{Binding Background, 
                 ElementName=dropDownBorder}" /> 
          </Canvas> 
          <ItemsPresenter x:Name="ItemsPresenter" 
             KeyboardNavigation.DirectionalNavigation="Contained" 
             SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" /> 
         </Grid> 
        </ScrollViewer> 

       </Grid> 
      </Border> 
     </Popup> 
     <ToggleButton x:Name="toggleButton" 
         Grid.ColumnSpan="2" 
         Background="{TemplateBinding Background}" 
         BorderBrush="{TemplateBinding BorderBrush}" 
         BorderThickness="{TemplateBinding BorderThickness}" 
         IsChecked="{Binding IsDropDownOpen, 
              Mode=TwoWay, 
              RelativeSource={RelativeSource TemplatedParent}}" 
         Style="{StaticResource ComboBoxToggleButton}" /> 
     <ContentPresenter x:Name="contentPresenter" 
          Margin="{TemplateBinding Padding}" 
          HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" 
          VerticalAlignment="{TemplateBinding VerticalContentAlignment}" 
          Content="{TemplateBinding SelectionBoxItem}" 
          ContentStringFormat="{TemplateBinding SelectionBoxItemStringFormat}" 
          ContentTemplate="{TemplateBinding SelectionBoxItemTemplate}" 
          ContentTemplateSelector="{TemplateBinding ItemTemplateSelector}" 
          IsHitTestVisible="false" 
          SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" /> 
    </Grid> 
    <ControlTemplate.Triggers> 
     <Trigger SourceName="PART_Popup" Property="HasDropShadow" Value="true" /> 
     <Trigger Property="HasItems" Value="false"> 
      <Setter TargetName="dropDownBorder" Property="Height" Value="95" /> 
     </Trigger> 
     <MultiTrigger> 
      <MultiTrigger.Conditions> 
       <Condition Property="IsGrouping" Value="true" /> 
       <Condition Property="VirtualizingPanel.IsVirtualizingWhenGrouping" Value="false" /> 
      </MultiTrigger.Conditions> 
      <Setter Property="ScrollViewer.CanContentScroll" Value="false" /> 
     </MultiTrigger> 
     <Trigger SourceName="DropDownScrollViewer" Property="ScrollViewer.CanContentScroll" Value="false"> 
      <Setter TargetName="opaqueRect" Property="Canvas.Top" Value="{Binding VerticalOffset, ElementName=DropDownScrollViewer}" /> 
      <Setter TargetName="opaqueRect" Property="Canvas.Left" Value="{Binding HorizontalOffset, ElementName=DropDownScrollViewer}" /> 
     </Trigger> 
    </ControlTemplate.Triggers> 
</ControlTemplate>

出典

2016-12-14 11:46:10 WPFUser

このような方法が選択されて

にすべての項目を割り当てます

このチェックをすべてのメソッドをチェックボックスにコマンドとしてバインドします。

public void CheckAll() 
{ 

    foreach(var item in Set2CmdList) 
    { 
     item.IsSelected = true; 
    } 
}

クラス

public bool IsSelected 
{ 
    get { return _IsSelected; } 
    set 
    { 
     _IsSelected = value; 
     OnPropertyChanged(); //See interface INotifyProeprtyChanged interface 
    } 
}

出典

2016-12-14 08:22:41 Eldho

それは動作していません –

詳細な問題は何かを教えてください。 – Eldho

私はcheckboxにすべてコマンドをチェックしてバインドしましたが、select allを選択すると、ブール値エラーを表示するためにすべてとオンプロパティを選択していません –

WpfのComboboxアイテム内のSelectAllチェックボックス

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