.NET core 中类似于 messageBox 的方法

Question

有什么方法可以在.NET core中显示像MessageBox.Show这样的弹出消息吗？

Answer 1

更新：

是的。 .NetCore 3.0+ supports WPF/Windows Forms

正如评论中John Dyer所述，

VB users can use this for a message box: https://docs.microsoft.com/en-us/dotnet/api/system.windows.messagebox?view=netcore-3.1

2017年原回答：

没有。 .NET Core 专注于 web，Messagebox 是 winforms 的东西。而且 .NET Core 中没有 winforms 支持。

关于“为什么没有 Microsoft.UI.WinForms .Net Core 包”的或多或少的官方回答

My team (the Microsoft .NET team) is focused on .NET Core as a cloud and web framework. We know that folks would like us to build additional application types for .NET Core. For now, we're remaining focused. Many other developers want us to stay focused on what we've started with .NET Core and that's our intention.

https://github.com/dotnet/core/issues/374

Answer 2

廉价替代品的问题之一是 Linux（或 Mac）上没有等效功能。

因此您可以自己编写许多 pinvoke 和结构，或者您可以只使用 "notify-send" 命令，它会在 Linux 上打开一个 "notification bubble"。

WindowManager.MsgBoxResult result = WindowManager.Interaction
    .MsgBox("Message", "Title", MsgBoxStyle.OkCancel);

这是我的实现：

namespace WindowManager
{


    public enum MsgBoxResult
        : int
    {
        Abort = 3,
        Cancel = 2,
        Ignore = 5,
        No = 7,
        Ok = 1,
        Retry = 4,
        Yes = 6
    }

    //[System.Flags]
    //public enum MsgBoxStyle
    //    : int
    //{
    //    AbortRetryIgnore = 2,
    //    ApplicationModal = 0,
    //    Critical = 0x10,
    //    DefaultButton1 = 0,
    //    DefaultButton2 = 0x100,
    //    DefaultButton3 = 0x200,
    //    Exclamation = 0x30,
    //    Information = 0x40,
    //    MsgBoxHelp = 0x4000,
    //    MsgBoxRight = 0x80000,
    //    MsgBoxRtlReading = 0x100000,
    //    MsgBoxSetForeground = 0x10000,
    //    OkCancel = 1,
    //    OkOnly = 0,
    //    Question = 0x20,
    //    RetryCancel = 5,
    //    SystemModal = 0x1000,
    //    YesNo = 4,
    //    YesNoCancel = 3
    //}


    [System.Flags]
    public enum MsgBoxStyle
    {
        /// <summary>
        /// OK button only (default). This member is equivalent to the Visual Basic constant <see langword="vbOKOnly" />.</summary>
        OkOnly = 0,
        /// <summary>
        /// OK and Cancel buttons. This member is equivalent to the Visual Basic constant <see langword="vbOKCancel" />.</summary>
        OkCancel = 1,
        /// <summary>
        /// Abort, Retry, and Ignore buttons. This member is equivalent to the Visual Basic constant <see langword="vbAbortRetryIgnore" />.</summary>
        AbortRetryIgnore = 2,
        /// <summary>
        /// Yes, No, and Cancel buttons. This member is equivalent to the Visual Basic constant <see langword="vbYesNoCancel" />.</summary>
        YesNoCancel = AbortRetryIgnore | OkCancel, // 0x00000003
                                                   /// <summary>
                                                   /// Yes and No buttons. This member is equivalent to the Visual Basic constant <see langword="vbYesNo" />.</summary>
        YesNo = 4,
        /// <summary>
        /// Retry and Cancel buttons. This member is equivalent to the Visual Basic constant <see langword="vbRetryCancel" />.</summary>
        RetryCancel = YesNo | OkCancel, // 0x00000005
                                        /// <summary>Critical message. This member is equivalent to the Visual Basic constant <see langword="vbCritical" />.</summary>
        Critical = 16, // 0x00000010
                       /// <summary>Warning query. This member is equivalent to the Visual Basic constant <see langword="vbQuestion" />.</summary>
        Question = 32, // 0x00000020
                       /// <summary>Warning message. This member is equivalent to the Visual Basic constant <see langword="vbExclamation" />.</summary>
        Exclamation = Question | Critical, // 0x00000030
                                           /// <summary>Information message. This member is equivalent to the Visual Basic constant <see langword="vbInformation" />.</summary>
        Information = 64, // 0x00000040
                          /// <summary>First button is default. This member is equivalent to the Visual Basic constant <see langword="vbDefaultButton1" />.</summary>
        DefaultButton1 = 0,
        /// <summary>Second button is default. This member is equivalent to the Visual Basic constant <see langword="vbDefaultButton2" />.</summary>
        DefaultButton2 = 256, // 0x00000100
                              /// <summary>Third button is default. This member is equivalent to the Visual Basic constant <see langword="vbDefaultButton3" />.</summary>
        DefaultButton3 = 512, // 0x00000200
                              /// <summary>Application modal message box. This member is equivalent to the Visual Basic constant <see langword="vbApplicationModal" />.</summary>
        ApplicationModal = 0,
        /// <summary>System modal message box. This member is equivalent to the Visual Basic constant <see langword="vbSystemModal" />.</summary>
        SystemModal = 4096, // 0x00001000
                            /// <summary>Help text. This member is equivalent to the Visual Basic constant <see langword="vbMsgBoxHelp" />.</summary>
        MsgBoxHelp = 16384, // 0x00004000
                            /// <summary>Right-aligned text. This member is equivalent to the Visual Basic constant <see langword="vbMsgBoxRight" />.</summary>
        MsgBoxRight = 524288, // 0x00080000
                              /// <summary>Right-to-left reading text (Hebrew and Arabic systems). This member is equivalent to the Visual Basic constant <see langword="vbMsgBoxRtlReading" />.</summary>
        MsgBoxRtlReading = 1048576, // 0x00100000
                                    /// <summary>Foreground message box window. This member is equivalent to the Visual Basic constant <see langword="vbMsgBoxSetForeground" />.</summary>
        MsgBoxSetForeground = 65536, // 0x00010000
    }


    // https://docs.microsoft.com/en-us/windows/desktop/api/winuser/nf-winuser-messagebox
    internal class UnsafeNativeMethods 
    {
        [System.Runtime.InteropServices.DllImport("user32.dll")]
        internal static extern MsgBoxResult MessageBox(System.IntPtr hWnd, string text, string caption, MsgBoxStyle options);
    }


    public class Interaction
    {


        private static string GetTitleFromAssembly(System.Reflection.Assembly CallingAssembly)
        {
            try
            {
                return CallingAssembly.GetName().Name;
            }
            catch (System.Security.SecurityException)
            {
                string fullName = CallingAssembly.FullName;
                int index = fullName.IndexOf(',');
                if (index >= 0)
                {
                    return fullName.Substring(0, index);
                }
                return "";
            }
        }


        public static MsgBoxResult MsgBox(string text, string caption, MsgBoxStyle options)
        {
            if (string.IsNullOrEmpty(caption))
                caption = GetTitleFromAssembly(System.Reflection.Assembly.GetCallingAssembly());

            if (System.Environment.OSVersion.Platform != System.PlatformID.Unix)
                return UnsafeNativeMethods.MessageBox(System.IntPtr.Zero, text, caption, options);

            text = text.Replace("\"", @"\""");
            caption = caption.Replace("\"", @"\""");

            using (System.Diagnostics.Process p = System.Diagnostics.Process.Start("notify-send", "\"" + caption + "\" \"" + text + "\""))
            {
                p.WaitForExit();
            }

            return MsgBoxResult.Ok;
        }


        public static MsgBoxResult MsgBox(string text, string caption)
        {
            return MsgBox(text, caption, MsgBoxStyle.OkOnly);
        }


        public static MsgBoxResult MsgBox(string text)
        {
            return MsgBox(text, null);
        }


        public static MsgBoxResult MsgBox(object objText, object objCaption)
        {
            string text = System.Convert.ToString(objText, System.Globalization.CultureInfo.InvariantCulture);
            string caption = System.Convert.ToString(objCaption, System.Globalization.CultureInfo.InvariantCulture);

            return MsgBox(text, caption);
        }


        public static MsgBoxResult MsgBox(object objText)
        {
            return MsgBox(objText, null);
        }


    } // End Class Interaction


} // End Namespace WindowManager

.NET core 中类似于 messageBox 的方法

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