System.Reflection.TargetInvocationException:“Exception has been thrown by the target of an invocation.” #5
Description
I have a ObservableCollectionEx: [1, 2, 3], if i remove 2 and 3 in DelayNotifications, then throw
System.Reflection.TargetInvocationException:“Exception has been thrown by the target of an invocation.”
InnerEx: NotSupportedException(Range operation is not supported)
<Window x:Class="ObservableCollectionExIssue5.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:ObservableCollectionExIssue5"
Title="MainWindow"
Width="300"
Height="450"
d:DataContext="{d:DesignInstance Type=local:MainWindow,
IsDesignTimeCreatable=True}"
DataContext="{Binding RelativeSource={RelativeSource Self}}"
FontSize="24"
mc:Ignorable="d">
<Grid>
<ListBox x:Name="lst"
ItemsSource="{Binding Samples}"
SelectionMode="Extended" />
<Button Height="50"
VerticalAlignment="Bottom"
Click="Button_Click"
Content="Delete selected items" />
</Grid>
</Window>using System.Collections.Immutable;
using System.Collections.ObjectModel;
using System.Linq;
using System.Windows;
namespace ObservableCollectionExIssue5;
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
public ObservableCollectionEx<int> Samples { get; set; } = new() { 1, 2, 3, 4, 5 };
public MainWindow()
{
InitializeComponent();
}
private void Button_Click(object sender, RoutedEventArgs e)
{
var toBeDeleted = lst.SelectedItems.Cast<int>().ToImmutableList();
using var d = Samples.DelayNotifications();
for (int i = 0; i < toBeDeleted.Count; i++)
{
int item = toBeDeleted[i];
d.Remove(item);
}
}
}