我有一个应用了GroupDescriptions的ICollectionView。我想在ListView中显示该组,而不显示该组的成员。
我还想使用ObservableCollection中的属性绑定到BackgroundColor。
我附上一张图片以帮助澄清。红色文本是我要显示的正确的组名。我还想将BackgroundColor绑定到每个组名(就像它在ItemTemplate中一样),并且我想完全消除ItemTemplate(如果没有它显示默认绑定,我现在就不能这样做)。
C#
private string _WorkOrderDisplayName;
public string WorkOrderDisplayName
{
get { return _WorkOrderDisplayName; }
set { _WorkOrderDisplayName = value; NotifyPropertyChanged("WorkOrderDisplayName"); }
}
private string _BackgroundColor;
public string BackgroundColor
{
get { return _BackgroundColor; }
set
{
_BackgroundColor = value;
NotifyPropertyChanged("BackgroundColor");
}
}
//WorkOrdersICollectionView
WorkOrdersGroupingICollectionView = new CollectionViewSource { Source = AllEstimateItemsForJobObsCollection }.View;
WorkOrdersGroupingICollectionView.GroupDescriptions.Add(new PropertyGroupDescription("WorkOrderDisplayName"));
WPF
<ListView ItemsSource="{Binding WorkOrdersGroupingICollectionView}">
<ListView.GroupStyle>
<GroupStyle>
<GroupStyle.HeaderTemplate>
<DataTemplate>
<TextBlock Text="{Binding Name}" FontSize="16" Foreground="Red" Background="{Binding BackgroundColor}"/>
</DataTemplate>
</GroupStyle.HeaderTemplate>
</GroupStyle>
</ListView.GroupStyle>
<ListView.ItemTemplate>
<DataTemplate>
<TextBlock Text="{Binding WorkOrderDisplayName}" MinWidth="155" Background="{Binding BackgroundColor}" Foreground="Black" Padding="8 3 8 3" FontSize="14" />
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
与ContainerStyle一起修订。只需要BackgroundColor正确绑定即可(这不能按原样工作):
<ListView Grid.Row="1" Name="WorkOrderGroupsList"
ItemsSource="{Binding WorkOrdersGroupingICollectionView}">
<ListView.GroupStyle>
<GroupStyle>
<GroupStyle.ContainerStyle>
<Style TargetType="{x:Type GroupItem}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type GroupItem}">
<TextBlock Text="{Binding Name}" FontSize="16" Foreground="Red" Background="{Binding BackgroundColor}" Margin="3"/>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</GroupStyle.ContainerStyle>
</GroupStyle>
</ListView.GroupStyle>
</ListView>
答案 0 :(得分:0)
您应该能够像这样绑定到每个组中第一项的BackgroundColor
属性:
<ControlTemplate TargetType="{x:Type GroupItem}">
<TextBlock Text="{Binding Name}" FontSize="16" Foreground="Red"
Background="{Binding Items[0].BackgroundColor}" Margin="3"/>
</ControlTemplate>