界面显示：
xaml：
代码语言：javascript复制<Window x:Class="WpfApp3.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:WpfApp3"
mc:Ignorable="d"
Title="MainWindow" Height="450" Width="800">
<Grid>
<Label Content="Label" Name="lblShow" HorizontalAlignment="Left" Margin="175,165,0,0" VerticalAlignment="Top"/>
<Button Content="Button" Name="btnCtrl" Click="BtnCtrl_Click" HorizontalAlignment="Left" Margin="340,165,0,0" VerticalAlignment="Top" Width="75"/>
</Grid>
</Window>
c#代码：
代码语言：javascript复制using System.Threading;
using System.Windows;
namespace WpfApp3
{
/// <summary>
/// MainWindow.xaml 的交互逻辑
/// </summary>
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
th = new Thread(labShowThread);
}
private void labShowThread()
{
Dispatcher.Invoke(() =>
{
lblShow.Content = "在线程中修改了标签值";
});
}
Thread th;
private void BtnCtrl_Click(object sender, RoutedEventArgs e)
{
th.Start();
}
}
}
