wpf listview 项目选择事件
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Wpf listview item selection event
提问by A191919
I have two ListView, each list contains some row's. I want to call function after row selection. But i have a problem, event "GotFocus" firing when row selected or button in this row clicked. When i use <i:EventTrigger EventName="Selected">it is not firing when row in table is selected. What i need to do?
我有两个 ListView，每个列表包含一些行。我想在行选择后调用函数。But i have a problem, event "GotFocus" firing when row selected or button in this row clicked. 当我<i:EventTrigger EventName="Selected">选择表中的行时，它不会触发。我需要做什么？
Xaml:
Xml：
<Grid>
<ListView Width="200" Height="200" ItemsSource="{Binding Items}" HorizontalAlignment="Left">
<ListView.ItemTemplate>
<DataTemplate>
<Button Content="{Binding .}">
</Button>
</DataTemplate>
</ListView.ItemTemplate>
<i:Interaction.Triggers>
<i:EventTrigger EventName="GotFocus">
<i:InvokeCommandAction Command="{Binding DataContext.TestCommand, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type vm:MainWindow }}}"></i:InvokeCommandAction>
</i:EventTrigger>
</i:Interaction.Triggers>
</ListView>
<ListBox Width="200" Height="200" ItemsSource="{Binding Items}" HorizontalAlignment="Right">
<ListBox.ItemTemplate>
<DataTemplate>
<Button Content="{Binding .}">
</Button>
</DataTemplate>
</ListBox.ItemTemplate>
<i:Interaction.Triggers>
<i:EventTrigger EventName="GotFocus">
<i:InvokeCommandAction Command="{Binding DataContext.TestTestCommand, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type vm:MainWindow }}}"></i:InvokeCommandAction>
</i:EventTrigger>
</i:Interaction.Triggers>
</ListBox>
</Grid>
Code:
代码：
namespace WpfApplication129
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
public MainWindow()
{
DataContext = new Data();
InitializeComponent();
}
}
public class Data
{
public ICommand TestCommand { get; set; }
public ICommand TestTestCommand { get; set; }
public List<string> Items { get; set; }
public Data()
{
TestCommand = new RelayCommand(() => Test());
TestTestCommand = new RelayCommand(() => TestTest());
Items = new List<string>();
Items.Add("first");
Items.Add("Second");
Items.Add("Third");
}
public void Test()
{
MessageBox.Show("Running");
}
public void TestTest()
{
MessageBox.Show("TestRunning");
}
}
}
采纳答案by Sinatr
There is no Selectedevent in ListView, you have to use SelectionChangedevent.
中没有Selected事件ListView，您必须使用SelectionChanged事件。
