WPF DataGrid与ListView性能对比与场景选择
Stay627 人气:2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();
}
}
}
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