wpf列表视图行禁用按钮启用

时间:2019-01-06 13:27:12

标签: wpf listview

我正在尝试禁用用户对列表视图中行的选择,但我仍然希望该行上的任何按钮都可以单击。到目前为止,我已在列表视图上使用eventSetter来将事件PreviewLeftMouseDown设置为一个除了以下操作外不执行任何操作的函数:

e.handled = true;

但这也使我在该行中具有的按钮不可单击。是否有一个选项可以覆盖事件PreviewLeftMouseDown,以便该按钮可以单击,或者完全以其他方式进行单击?

我仍然希望通过代码突出显示某些行,就像用户选择它们一样。

谢谢!

1 个答案:

答案 0 :(得分:1)

我用INotifyPropertyChanged创建了一个名为 Data 的类。

public class Data : INotifyPropertyChanged
    {
        public string Text { get; set; }

        private string selectedBackGround;
        public string SelectedBackGround
        {
            get
            {
                return selectedBackGround;
            }
            set
            {
                selectedBackGround = value;
                NotifyPropertyChanged("SelectedBackGround");
            }

        }


        public event PropertyChangedEventHandler PropertyChanged;

        public void NotifyPropertyChanged(String propertyName = "")
        {
            if (PropertyChanged != null)
            {
                PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
            }
        }
    }

在Xaml中,我使用 SelectedBackGround 属性覆盖了ControlTemplate并绑定到StackPanel Background。此属性 SelectedBackGround 仅用于通过代码更改颜色。

        <ListView x:Name="ListView1" SelectionChanged="ListView_SelectionChanged" HorizontalAlignment="Left" Height="135.924" Margin="194.529,104.462,0,0" VerticalAlignment="Top" Width="302.311" ItemsSource="{Binding ListOfstring}"    >
        <ListView.ItemContainerStyle>
            <Style TargetType="{x:Type ListViewItem}">
                <Style.Setters>
                    <Setter Property="Template">
                        <Setter.Value>
                            <ControlTemplate>
                                <StackPanel Orientation="Horizontal" Background="{Binding SelectedBackGround}">
                                    <TextBlock Text="{Binding Text,UpdateSourceTrigger=Explicit}"  Foreground="Black"/>
                                    <Button  x:Name="btn1" Content="Button" HorizontalAlignment="Left" VerticalAlignment="Top" Width="75" Click="Btn1_Click_1"  />
                                </StackPanel>
                            </ControlTemplate>
                        </Setter.Value>
                    </Setter>
                </Style.Setters>
            </Style>
        </ListView.ItemContainerStyle>
    </ListView >

这就是我填写收藏集的方式。

public MainWindow()
    {
        ListOfstring = new ObservableCollection<Data>();
        InitializeComponent();
        ListOfstring.Add( new Data{ Text="TEST1", SelectedBackGround =    "White"       });
        ListOfstring.Add( new Data{ Text="TEST2", SelectedBackGround =    "White"   });
        ListOfstring.Add( new Data{ Text="TEST3", SelectedBackGround =    "White"   });
        ListOfstring.Add( new Data{ Text = "TEST4", SelectedBackGround  = "White" });
        this.DataContext = this;

    }

如您所见,按钮已订阅了click事件。

private void Btn1_Click_1(object sender, RoutedEventArgs e)
{
    // Whenever you click on the any list item button, you are changing background 
    // of the 3rd item in the list view to Aqua Color.
    ListOfstring[2].SelectedBackGround = "Aqua";
}
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