WPF data list acted as static resource
public class MyData : ObservableCollection<string> { public MyData() { for(int i=0;i<100000;i++) { Add($"{i+1}__{Guid.NewGuid().ToString("N")}"); } } } <Window.Resources> <local:MyData x:Key="dataList"/> </Window.Resources> <ListBox ItemsSource="{Binding Source={StaticResource dataList}}" VirtualizingPanel.IsVirtualizing="True" VirtualizingPanel.IsContainerVirtualizable="True" VirtualizingPanel.CacheLength="100" VirtualizingPanel.CacheLengthUnit="Item"/>
Full code
//xaml <Window x:Class="WpfApp385.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 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" xmlns:local="clr-namespace:WpfApp385" mc:Ignorable="d" WindowState="Maximized" Title="MainWindow" Height="450" Width="800"> <Window.Resources> <local:MyData x:Key="dataList"/> <Style TargetType="{x:Type ListBoxItem}"> <Setter Property="FontSize" Value="50"/> <Style.Triggers> <Trigger Property="IsMouseOver" Value="True"> <Setter Property="Foreground" Value="Red"/> <Setter Property="FontSize" Value="70"/> <Setter Property="FontWeight" Value="ExtraBold"/> </Trigger> </Style.Triggers> </Style> </Window.Resources> <Grid> <ListBox ItemsSource="{Binding Source={StaticResource dataList}}" VirtualizingPanel.IsVirtualizing="True" VirtualizingPanel.IsContainerVirtualizable="True" VirtualizingPanel.CacheLength="100" VirtualizingPanel.CacheLengthUnit="Item"/> </Grid> </Window> //cs using System; using System.Collections.Generic; using System.Collections.ObjectModel; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows; using System.Windows.Controls; using System.Windows.Data; using System.Windows.Documents; using System.Windows.Input; using System.Windows.Media; using System.Windows.Media.Imaging; using System.Windows.Navigation; using System.Windows.Shapes; namespace WpfApp385 { /// <summary> /// Interaction logic for MainWindow.xaml /// </summary> public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); } } public class MyData : ObservableCollection<string> { public MyData() { for(int i=0;i<100000;i++) { Add($"{i+1}__{Guid.NewGuid().ToString("N")}"); } } } }
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