C# Avalonia 19- DataBinding- VirtualizationTest

VirtualizationTest.axaml代码

<Window xmlns="https://github.com/avaloniaui"
        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"
        Height="300" Width="300" Loaded="Window_Loaded"
        x:Class="AvaloniaUI.VirtualizationTest"
        Title="VirtualizationTest">
    <Grid Margin="5" ColumnDefinitions="auto,*" RowDefinitions="auto,auto">

        <TextBlock VerticalAlignment="Center">Slow ComboBox:</TextBlock>

        <!-- 非虚拟化 ComboBox -->
        <ComboBox Grid.Column="1" Margin="5"
                  Name="lstSlow" />

        <TextBlock Grid.Row="1" VerticalAlignment="Center">Fast ComboBox:</TextBlock>

        <!-- 启用虚拟化 ComboBox -->
        <ComboBox Grid.Row="1" Grid.Column="1" Margin="5" Name="lstFast">
            <ComboBox.ItemsPanel>
                <ItemsPanelTemplate>
                    <VirtualizingStackPanel />
                </ItemsPanelTemplate>
            </ComboBox.ItemsPanel>
        </ComboBox>
    </Grid>
</Window>

VirtualizationTest.axaml.cs代码

using Avalonia;
using Avalonia.Controls;
using Avalonia.Interactivity;
using Avalonia.Markup.Xaml;

namespace AvaloniaUI;

public partial class VirtualizationTest : Window
{
    public VirtualizationTest()
    {
        InitializeComponent();
    }

    private void Window_Loaded(object? sender, RoutedEventArgs e)
    {
        for (int i = 0; i < 10000; i++)
        {
            lstFast.Items.Add(i.ToString());
            lstSlow.Items.Add(i.ToString());
        }
    }
}

运行效果