WPF DataGrid与ListView性能对比与场景选择

开门见山的说

性能对比:

在Demo中,DataGrid与ListView默认开启虚拟化(可以理解为动态渲染,类似懒加载只渲染屏幕可以看见的地方)

DataGrid渲染10列50行随机字符280ms

ListView渲染10列50行随机字符80ms

场景选择:

ListView只生成需要展示的数据类型的控件,渲染相对DataGrid要快很多

DataGrid会生成编辑两种状态单元格(编辑与非编辑),如非必要不推荐使用(编辑单元格WPF硬伤/(ㄒoㄒ)/~~)

UI效果图:

Code:

XAML

<Window x:Class="WPFDemo.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:WPFDemo" mc:Ignorable="d" Title="MainWindow" Height="450" Width="800">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="40" />
            <RowDefinition />
        </Grid.RowDefinitions>
        <WrapPanel VerticalAlignment="Center" HorizontalAlignment="Center">
            <Button Margin="5,0" Width="80" Content="Next" Click="Button_Click"></Button>
            <Label Content="DataGrid" Style="{x:Null}" VerticalAlignment="Center"></Label>
            <Label Margin="5,0" Content="{Binding DgMs,UpdateSourceTrigger=PropertyChanged,Mode=TwoWay}" x:Name="uiDgMs"></Label>
            <Label Content="ms" Style="{x:Null}" VerticalAlignment="Center"></Label>
            <Label Margin="5,0,0,0" Content="ListView" Style="{x:Null}" VerticalAlignment="Center"></Label>
            <Label Margin="5,0" Content="{Binding LvMs,UpdateSourceTrigger=PropertyChanged,Mode=TwoWay}" x:Name="uiLvMs"></Label>
            <Label Content="ms" Style="{x:Null}" VerticalAlignment="Center"></Label>
        </WrapPanel>
        <TabControl Grid.Row="1">
            <TabItem Header="DataGrid">
                <DataGrid ItemsSource="{Binding DgList}" RowStyle="{x:Null}" AutoGenerateColumns="False" EnableColumnVirtualization="True" EnableRowVirtualization="True">
                    <DataGrid.Resources>
                        <Style TargetType="DataGridRow">
                            <Setter Property="Height" Value="24" />
                        </Style>
                    </DataGrid.Resources>
                    <DataGrid.Columns>
                        <DataGridTextColumn Header="F1" Binding="{Binding F1}"></DataGridTextColumn>
                        <DataGridTextColumn Header="F2" Binding="{Binding F2}"></DataGridTextColumn>
                        <DataGridTextColumn Header="F3" Binding="{Binding F3}"></DataGridTextColumn>
                        <DataGridTextColumn Header="F4" Binding="{Binding F4}"></DataGridTextColumn>
                        <DataGridTextColumn Header="F5" Binding="{Binding F5}"></DataGridTextColumn>
                        <DataGridTextColumn Header="F6" Binding="{Binding F6}"></DataGridTextColumn>
                        <DataGridTextColumn Header="F7" Binding="{Binding F7}"></DataGridTextColumn>
                        <DataGridTextColumn Header="F8" Binding="{Binding F8}"></DataGridTextColumn>
                        <DataGridTextColumn Header="F9" Binding="{Binding F9}"></DataGridTextColumn>
                        <DataGridTextColumn Header="F10" Binding="{Binding F10}"></DataGridTextColumn>
                    </DataGrid.Columns>
                </DataGrid>
            </TabItem>
            <TabItem Header="ListView">
                <ListView ItemsSource="{Binding LvList}">
                    <ListView.ItemContainerStyle>
                        <Style TargetType="ListViewItem">
                            <Setter Property="Height" Value="20" />
                        </Style>
                    </ListView.ItemContainerStyle>
                    <ListView.View>
                        <GridView>
                            <GridViewColumn Header="F1" DisplayMemberBinding="{Binding F1}"></GridViewColumn>
                            <GridViewColumn Header="F2" DisplayMemberBinding="{Binding F2}"></GridViewColumn>
                            <GridViewColumn Header="F3" DisplayMemberBinding="{Binding F3}"></GridViewColumn>
                            <GridViewColumn Header="F4" DisplayMemberBinding="{Binding F4}"></GridViewColumn>
                            <GridViewColumn Header="F5" DisplayMemberBinding="{Binding F5}"></GridViewColumn>
                            <GridViewColumn Header="F6" DisplayMemberBinding="{Binding F6}"></GridViewColumn>
                            <GridViewColumn Header="F7" DisplayMemberBinding="{Binding F7}"></GridViewColumn>
                            <GridViewColumn Header="F8" DisplayMemberBinding="{Binding F8}"></GridViewColumn>
                            <GridViewColumn Header="F9" DisplayMemberBinding="{Binding F9}"></GridViewColumn>
                            <GridViewColumn Header="F10" DisplayMemberBinding="{Binding F10}"></GridViewColumn>
                        </GridView>
                    </ListView.View>
                </ListView>
            </TabItem>
        </TabControl>
    </Grid>
</Window>

后台

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Windows;

namespace WPFDemo
{
    /// <summary>
    /// MainWindow.xaml 的交互逻辑
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            view = new MainWindowView();
            view.DgList = new System.Collections.ObjectModel.ObservableCollection<DgModel>();
            this.DataContext = view;
            InitData();
        }
        MainWindowView view;
        private void InitData()
        {
            var list = new List<DgModel>();
            Random rd = new Random();
            for (int i = 0; i < 50; i++)
            {
                var item = new DgModel();
                item.F1 = rd.Next().ToString();
                item.F2 = rd.Next().ToString();
                item.F3 = rd.Next().ToString();
                item.F4 = rd.Next().ToString();
                item.F5 = rd.Next().ToString();
                item.F6 = rd.Next().ToString();
                item.F7 = rd.Next().ToString();
                item.F8 = rd.Next().ToString();
                item.F9 = rd.Next().ToString();
                item.F10 = rd.Next().ToString();
                list.Add(item);
            }
            Stopwatch ms = new Stopwatch();
            ms.Restart();
            view.DgList = new System.Collections.ObjectModel.ObservableCollection<DgModel>(list);
            ms.Stop();
            view.DgMs = ms.ElapsedMilliseconds.ToString();
            ms.Restart();
            view.LvList = new System.Collections.ObjectModel.ObservableCollection<DgModel>(list);
            ms.Stop();
            view.LvMs = ms.ElapsedMilliseconds.ToString();
        }
        private void Button_Click(object sender, RoutedEventArgs e)
        {
            InitData();
        }
    }
}

相关回答:

ListView和ListBox的区别?(ListView是数据表格,ListBox是类似Tree的单选列表)

博主使用的是第三方开源控件HandyControl(强烈安利)

博客园空间不足,Demo加群下载

posted @ 2021-01-13 10:50  Stay627  阅读(252)  评论(1编辑  收藏
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