Avalonia为DataGrid添加行点击事件

1.前置参考： Avalonia常用小控件DataGrid

2.DataGrid.axaml.cs

1.为DataGridRow添加点击事件 

PointerPressedEvent.AddClassHandler会让你的程序中所有页面的DataGridRow都来执行这个方法

PointerPressedEvent.AddClassHandler((x, e) => DataGridRowPointerPressed(x, e), handledEventsToo: true);

构造行数中添加  dg.LoadingRow += LoadingRow;

 private void LoadingRow(object? sender, DataGridRowEventArgs e)
 {
     DataGridRow dataGridRow = e.Row;
     dataGridRow.AddHandler(DataGridRow.PointerPressedEvent, (x, e) => DataGridRow_PointerPressed(dataGridRow, e), handledEventsToo: true);
 }

2.你要实现的点击事件

private void DataGridRowPointerPressed(DataGridRow x, PointerPressedEventArgs e)
{
   //你的逻辑
}

 public DataGrid()
 {
     InitializeComponent();
     // 会让全局的Datagrid的行点击都执行这个事件
     //PointerPressedEvent.AddClassHandler<DataGridRow>((x, e) => DataGridRow_PointerPressed(x, e), handledEventsToo: true);
     dg.LoadingRow += LoadingRow;
     dg.ItemsSource = AllTargetList;
     DataContext = this;
 }
 
 private void LoadingRow(object? sender, DataGridRowEventArgs e)
 {
     DataGridRow dataGridRow = e.Row;
     dataGridRow.AddHandler(DataGridRow.PointerPressedEvent, (x, e) => DataGridRow_PointerPressed(dataGridRow, e), handledEventsToo: true);
 }

3. 列表数据初始化  在Loaded 中给列表赋值的话，LoadingRow 会执行两次，直接在构造方法里边赋值，执行一次，不清楚为啥

public DataGrid()
{
    InitializeComponent();
    DataContext = this;
    Loaded += WindowLoaded;
    dg.LoadingRow += LoadingRow;
}
 
private void WindowLoaded(object? sender, RoutedEventArgs e)
{
   // 列表数据赋值如果在这个位置赋值LoadingRow就会执行两次
    dg.ItemsSource = AllTargetList;
}
 
 
  private void LoadingRow(object? sender, DataGridRowEventArgs e)
  {
      Debug.WriteLine(e.Row.GetIndex());
      DataGridRow dataGridRow = e.Row;
      dataGridRow.AddHandler(DataGridRow.PointerPressedEvent, (x, e) => DataGridRow_PointerPressed(dataGridRow, e), handledEventsToo: true);
  }