如何启动无模式窗口并在 caliburn micro 中强制执行它的单个实例

Question

使用 Caliburn Micro 启动无模式窗口但强制应用程序中只有一个启动窗口实例的推荐方法是什么？

Answer 1

我不确定这是否是批准的方法;但是，这是我过去所做的，以确保一次只打开一个窗口实例。请注意，没有任何特定的方法 afaik，使用 Caliburn 来创建模态类型窗口;您需要自己设置窗口。

// Create a reference to the model being used to instantiate the window
// and let the IoC import the model. If you set the PartCreationPolicy
// as Shared for the Export of SomeOtherModel, then no matter where you are
// in the application, you'll always be acting against the same instance.
[Import]
private SomeOtherModel _otherModel;

public void ShowSomeOtherWindow()
{
    // use the caliburn IsActive property to see if the window is active
    if( _otherModel.IsActive )
    {
        // if the window is active; nothing to do.
        return;
    }
    // create some settings for the new window:
    var settings = new Dictionary<string, object>
                   {
                           { "WindowStyle", WindowStyle.None },
                           { "ShowInTaskbar", false },
                   };
    // show the new window with the caliburn IWindowManager:
    _windowManager.ShowWindow( _otherModel, null, settings );
}