我创建了一个列表视图,并在其中填充了一个可观察的集合。我折叠了一行。。但是它仍然略显可见,可以选择。是否可以将其完全删除?
代码如下:
主窗口xaml:
<Window x:Class="ListViewProblem.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:ListViewProblem"
mc:Ignorable="d"
Title="MainWindow" Height="450" Width="800">
<Window.DataContext>
<local:ViewModel />
</Window.DataContext>
<Grid>
<ListView ItemsSource="{Binding Numbers}">
<ListView.ItemTemplate >
<DataTemplate>
<Border Visibility="{Binding Visibility}">
<StackPanel Orientation="Horizontal" >
<TextBlock VerticalAlignment="Center" Text="{Binding Value}" />
</StackPanel>
</Border>
</DataTemplate>
</ListView.ItemTemplate>
<ListView.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Vertical" />
</ItemsPanelTemplate>
</ListView.ItemsPanel>
</ListView>
</Grid>
</Window>
视图模型:
public class ViewModel :INotifyPropertyChanged
{
private ObservableCollection<NumberVisibility> numbers;
public ObservableCollection<NumberVisibility> Numbers
{
get => numbers;
set
{
numbers = value;
OnPropertyChanged("Numbers");
}
}
public ViewModel()
{
Numbers = new ObservableCollection<NumberVisibility>();
Numbers.Add(new NumberVisibility() { Value=1, Visibility = System.Windows.Visibility.Visible});
Numbers.Add(new NumberVisibility() { Value = 2, Visibility = System.Windows.Visibility.Visible });
Numbers.Add(new NumberVisibility() { Value = 3, Visibility = System.Windows.Visibility.Collapsed });
Numbers.Add(new NumberVisibility() { Value = 4, Visibility = System.Windows.Visibility.Visible });
Numbers.Add(new NumberVisibility() { Value = 5, Visibility = System.Windows.Visibility.Visible });
}
public event PropertyChangedEventHandler PropertyChanged;
protected void OnPropertyChanged(string propertyName)
{
this.OnPropertyChanged(new PropertyChangedEventArgs(propertyName));
}
protected virtual void OnPropertyChanged(PropertyChangedEventArgs e)
{
this.PropertyChanged?.Invoke(this, e);
}
}
NumberVisibility对象:
public class NumberVisibility
{
public int Value { get; set; }
public Visibility Visibility { get; set; }
}
请注意,第3行已折叠,但仍占据一些像素并且可以选择。可以纠正吗?
感谢您的帮助。