一个选项是启动不想要在不同线程上对话框影响的窗口。这可能会导致您的应用程序出现其他问题，但如果这些窗口确实封装了不同的工作流程，那可能不是问题。这是我写的一些示例代码，以验证它是否有效：

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

Title="{Binding Identifier}" Height="150" Width="150">

using System.ComponentModel;

using System.Threading;

using System.Windows;

namespace ModalSample

{

///

/// Interaction logic for MyWindow.xaml

///

public partial class MyWindow : INotifyPropertyChanged

{

public MyWindow()

{

InitializeComponent();

DataContext = this;

}

private int child = 1;

private string mIdentifier = "Root";

public string Identifier

{

get { return mIdentifier; }

set

{

if (mIdentifier == value) return;

mIdentifier = value;

if (PropertyChanged != null)

PropertyChanged(this, new PropertyChangedEventArgs("Identifier"));

}

}

private void OpenNormal_Click(object sender, RoutedEventArgs e)

{

var window = new MyWindow {Identifier = Identifier + "-N" + child++};

window.Show();

}

private void OpenIndependent_Click(object sender, RoutedEventArgs e)

{

var thread = new Thread(() =>

{

var window = new MyWindow {Identifier = Identifier + "-I" + child++};

window.Show();

window.Closed += (sender2, e2) => window.Dispatcher.InvokeShutdown();

System.Windows.Threading.Dispatcher.Run();

});

thread.SetApartmentState(ApartmentState.STA);

thread.Start();

}

private void OpenModal_Click(object sender, RoutedEventArgs e)

{

var window = new MyWindow { Identifier = Identifier + "-M" + child++ };

window.ShowDialog();

}

public event PropertyChangedEventHandler PropertyChanged;

}

}

我采用this blog post在不同的线程上运行WPF窗口。