<ControlTemplate TargetType="{x:Type control:CheckListView}">
          <Grid Background="{TemplateBinding Background}">
            <Grid.RowDefinitions>
              <RowDefinition Height="Auto" />
              <RowDefinition Height="*" />
            </Grid.RowDefinitions>
            
            <CheckBox Content="全选" />            
            
            <ListView x:Name="list"
                 Grid.Row="1">
              <ListView.ItemTemplate>
                <DataTemplate>
                  <CheckBox />                  
                </DataTemplate>
              </ListView.ItemTemplate>
            </ListView>
          </Grid>
        </ControlTemplate>

public static readonly DependencyProperty IsSelectAllCheckedProperty =
      DependencyProperty.Register("IsSelectAllChecked", typeof(bool?), typeof(CheckListView), new PropertyMetadata(false));

    public static readonly DependencyProperty ItemsSourceProperty =
      DependencyProperty.Register("ItemsSource", typeof(object), typeof(CheckListView), new PropertyMetadata(null));

    /// <summary>
    /// 返回或设置全选复选框的选中状态
    /// </summary>
    public bool? IsSelectAllChecked
    {
      get { return (bool?)GetValue(IsSelectAllCheckedProperty); }
      set { SetValue(IsSelectAllCheckedProperty, value); }
    }

    /// <summary>
    /// 数据源
    /// </summary>
    public object ItemsSource
    {
      get { return (object)GetValue(ItemsSourceProperty); }
      set { SetValue(ItemsSourceProperty, value); }
    } 

public interface ICheckItem
  {
    /// <summary>
    /// 当前项是否选中
    /// </summary>
    bool IsSelected { get; set; }

    /// <summary>
    /// 名称
    /// </summary>
    string Name { get; set; }
  }

<CheckBox Content="全选" IsChecked="{Binding IsSelectAllChecked, RelativeSource={RelativeSource TemplatedParent}, Mode=TwoWay}" />
 <ListView x:Name="list" Grid.Row="1" ItemsSource="{TemplateBinding ItemsSource}">
   <ListView.ItemTemplate>
    <DataTemplate>
        <CheckBox Content="{Binding Name}" IsChecked="{Binding IsSelected}" />
          </DataTemplate>
        </ListView.ItemTemplate>
</ListView>

<CheckBox Content="全选" IsChecked="{Binding IsSelectAllChecked, RelativeSource={RelativeSource TemplatedParent}, Mode=TwoWay}">
      <i:Interaction.Triggers>
        <i:EventTrigger EventName="Click">
           <ei:CallMethodAction MethodName="CheckAllItems" TargetObject="{Binding RelativeSource={RelativeSource TemplatedParent}}" />
         </i:EventTrigger>
        </i:Interaction.Triggers>
 </CheckBox>

/// <summary>
/// 全选或清空所用选择
/// </summary>
    public void CheckAllItems()
    {
      foreach (ICheckItem item in ItemsSource as IList<ICheckItem>)
      {
        item.IsSelected = IsSelectAllChecked.HasValue ? IsSelectAllChecked.Value : false;
      }
    }

<DataTemplate>
   <CheckBox Content="{Binding Name}" IsChecked="{Binding IsSelected}">
     <i:Interaction.Triggers>
     <i:EventTrigger EventName="Click">
      <ei:CallMethodAction MethodName="UpdateSelectAllState" TargetObject="{Binding RelativeSource={RelativeSource AncestorType=control:CheckListView}}" />
     </i:EventTrigger>
     </i:Interaction.Triggers>
  </CheckBox>
</DataTemplate>

/// <summary>
/// 根据当前选择的个数来更新全选框的状态
/// </summary>
    public void UpdateSelectAllState()
    {
      var items = ItemsSource as IList<ICheckItem>;
      if (items == null)
      {
        return;
      }

      // 获取列表项中 IsSelected 值为 True 的个数，并通过该值来确定 IsSelectAllChecked 的值
      int count = items.Where(item => item.IsSelected).Count();
      if (count == items.Count)
      {
        IsSelectAllChecked = true;
      }
      else if (count == 0)
      {
        IsSelectAllChecked = false;
      }
      else
      {        
        IsSelectAllChecked = null;
      }
    }

xmlns:ei="http://schemas.microsoft.com/expression/2010/interactions"
xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity"

public class User : BindableBase, ICheckItem
  {
    private bool isSelected;
    private string name;

    public bool IsSelected
    {
      get { return isSelected; }
      set { SetProperty(ref isSelected, value); }
    }

    public string Name
    {
      get { return name; }
      set { SetProperty(ref name, value); }
    }
  }