Question

我正在编写一些代码来检查我的资源是否已正确清理。

当应用程序关闭时，资源不会被清除，这很好。但是，这使我的检查代码失败。

有没有办法知道WPF应用程序是否正在关闭？ - 像Application.Current.IsShuttingDown？

Answer 1

有Application.Exit事件，您应该能够做到这一点。

如果您真的需要它作为属性，那么在App类中创建一个属性（您的类继承Windows.Application）并使用Application.Exit事件将其设置为true。

Answer 2

    /// <summary>
    /// Hack to check if the application is shutting down.
    /// </summary>
    public static bool IsShuttingDown()
    {
        try
        {
            Application.Current.ShutdownMode = Application.Current.ShutdownMode;
            return false;
        }
        catch (Exception)
        {
            return true;
        }
    }

Answer 3

只需将其添加到您的App.cs文件中

S C:\aspnetcore-docker> dotnet --list-runtimes
Microsoft.AspNetCore.All 2.1.0 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All]
Microsoft.AspNetCore.All 2.1.1 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All]
Microsoft.AspNetCore.All 2.1.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All]
Microsoft.AspNetCore.All 2.1.4 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All]
Microsoft.AspNetCore.All 2.1.5 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All]
Microsoft.AspNetCore.All 2.1.6 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All]
Microsoft.AspNetCore.App 2.1.0 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 2.1.1 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 2.1.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 2.1.4 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 2.1.5 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 2.1.6 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]

有没有办法知道WPF应用程序是否正在关闭？

3 个答案: