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Microsoft .Net on Mac OSX

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Visual Studio for Mac installs the.NET SDK when the.NET workload is selected. To get started with.NET development on macOS, see Install Visual Studio 2019 for Mac. Install alongside Visual Studio Code Visual Studio Code is a powerful and lightweight source code editor that runs on your desktop. Download.NET Core Runtime for Mac - Run and test.NET Core apps with the help of this open source and cross-platform deevlopment component that also performs actions like garbage collection and compilation to machine code. .NetCore is a fine release from Microsoft and Visual Studio's latest version is also available for mac but there is still some limitation. Like for creating GUI based application on.net core you have to write code manually for everything. Like in older version of VS we just drag and drop the things and magic happens.


The good news: you can run .Net apps on Virtual PC on the Mac. The bad news..

Let me put my cards on the table. I'd like to see .Net go cross-platform. I like the .Net Framework; it's great to work with. In particular, I like the way you can easily share code between web and windows applications. The Windows Forms part of the Framework has some rough edges, but still makes it relatively easy to snap together a rich client application, easier in many cases than doing the equivalent in Java and Swing. But I don't want to shut out users on the Mac or on Linux. OK, they can run Web applications, or use .Net Web Services, but that's not enough. I want to deliver those users my .Net executable and have them be able to run it.

It runs: .Net on the Mac

Well, there's Mono. It looks good and I hope it succeeds. But imagine what Microsoft could do if it got behind cross-platform .Net. All that research into the CLR on Free BSD must be there for a reason (BSD is the basis for Mac OSX). With a bit of effort, we could have Windows Forms apps running on the three most significant desktops: Windows, Mac, Linux. The company may think that would undermine Windows. Or it may think that people are only interested in Web apps these days. Neither is true. Macromedia is garnering great interest in Flash as the premier cross-platform rich client. But would you rather program in ActionScript or C#? I know which I would choose, and it isn't ActionScript.

To date though, cross-platform .Net is only a dream. Oh well, there's always the likes of Wine and Virtual PC. Or is there? When I scoured the Web for news on this subject, I drew blank. The Wine folk don't seem to be interested in running .Net apps. And I couldn't find any reports of success with Virtual PC, to my mind the most advanced of the Mac PC emulators. So without much hope of success, I got hold of an iBook, stuffed it to the max 640MB RAM, installed Virtual PC for DOS, and experimented with various flavours of Windows. Windows XP on this setup runs, just about. But I couldn't get dotnetfx.exe (the .NET runtime) to install. It seemed to run OK, then bombed out. So I tried Windows 98. My first effort failed. However, with Virtual PC it's easy to start again. I tried a fresh install. It worked. On went IE 6.0, then MDAC 2.7, then the Framework, then the SP1 service pack. No errors. I tried one of my apps. Nothing seemed to be happening. I waited. Then .. it opened. Wow. Dot net runs on OSX, fantastic. Unfortunately, it's slow. Really slow. Sadly, my app isn't usable, not really. Maybe on a high-end G4, rather than my lowly G3 iBook? If you've had success, please leave a comment and let me know. Even so, I'm encouraged. It runs, and that's a start. Maybe Connextix will improve the speed. And finally, yes I realise that .Net on Win98 on DOS on Virtual PC on OSX is a house of cards and no real answer. So Microsoft - how about .Net for the Mac? Please.

Copyright Tim Anderson 4th November 2002. All rights reserved.

Introduction to Mono on macOS

Mono supports macOS version 10.9 (Mavericks) and later.

You can use Mono on macOS to build server, console and GUI applications. Read below for the options available for GUI application development.

If you are interested in creating native GUI applications, use the MonoMac bindings and our MonoDevelop add-in. Read the description on MonoMac for more information on how to get started.

Installing Mono on macOS

You can use Mono either as a runtime to run existing application, or as an SDK to develop new applications with Mono.

Visit the download page to find the latest macOS package. Run it and follow the instructions there, you can either get a basic runtime, or a complete runtime plus a software development kit.

If you plan on developing applications with Mono, we suggest that you also install the MonoDevelop IDE after you install Mono.

The Mono package includes:

  • The Mono Runtime
  • GUI Toolkits: Windows.Forms and Gtk# for macOS.
    • Note: the MonoMac GUI toolkit for native macOS GUI development is currently a separate download.
  • SDK: C#, Visual Basic compilers, assemblers and tools
  • XSP ASP.NET server
  • Manual pages.

This package installs as a framework into /Library/Frameworks/Mono.framework (the same way the Java packages are installed). The executable binaries can be found in /Library/Frameworks/Mono.framework/Versions/Current/bin. If you’d like to access the mono manpages you’ll have to add /Library/Frameworks/Mono.framework/Versions/Current/man to your manpath. The macOS Mono package does not include Gtk#, XSP or mod_mono. These will have to be compiled from source.

Our packages currently require macOS version 10.9 or later, for older versions, you will need to build from source code.

Using Mono on macOS

At this point, you must use Mono from the command line, the usual set of commands that are available on other ports of Mono are available.

To build applications you can use “mcs”, to run then you can use mono.

From a Terminal shell, you can try it out:

Most users would be using the MonoDevelop IDE to create their projects.

You will have a choice of GUI toolkits for building your application, from pure cross platform, to Mac-specific using MonoMac.

32 and 64 bit support

The Mono packages published on this web site provide both a 32-bit and a 64-bit Mono VM.

Starting from Mono 5.2 the mono command defaults to 64-bit, you can use the --arch=32/64 switch to control the bitness.

.net For Mac M1

The 64 bit support has a few limitations today:

.net For Macbook

  • Our Windows.Forms implementation uses Carbon, and as such, it would not work with a 64-bit Mono.

Building Client Applications

.net For Mac Download

There are a few choices to build client applications on macOS, you should pick the technology that better fits your goals, your choices are:

ToolkitRuns on LinuxRuns on WindowsRuns on MacBinding StyleLicenseStatus
MonoMacnonoyesStrongly typed C# binding to Cocoa APIsMIT X11Actively developed, builds on the design lessons from MonoTouch but still incomplete. This will be the new default binding for Mono on macOS. Separate download.
Gtk#yesyesyesStrongly typed C# binding to the cross platform Gtk+ API. Applications look foreign on macOS.LGPL v2Actively developed, cross platform. Bundled with Mono.
Windows.FormsyesyesyesCross platform implementation of Microsoft’s Windows.Forms. Applications look foreign on macOS.MIT X11The Windows.Forms API was frozen in time by Microsoft. Bundled with Mono.
MonObjcnonoyesBinding to the native Cocoa APIs, but requires manual use of Objective-C selectors to work with, relatively thin wrapper around the underlying APIs.LGPL v3Actively developed. Separate download.
CocoaSharpnonoyesBinding to the native Cocoa APIs, but requires manual use of Objective-C selectors to work with, relatively thin wrapper around the underlying APIs.MIT X11No longer developed, no longer maintained, deprecated. Bundled with Mono.

Running Mono applications on macOS

Running applications on macOS is very similar to linux systems, from the terminal:

For GTK# applications, it’s easiest to run them the same way but using xterm from X11.app


.net For Mac Os

.net For Mac

Mono’s implementation of the System.Windows.Forms API is built on top of Carbon and can only run with Mono on 32 bit systems. The look and feel of System.Windows.Forms applications mimics the Windows style and does not currently render like a native macOS application.

Third Party Libraries

.net For Mac Os X

ObjC# is a transparent two way bridge that allows the CLR to access the rich underlying ObjectiveC frameworks as well as providing direct access to the CLR frameworks from the ObjectiveC language.

Recoverit mac free. Wondershare Recoverit is a data recovery software specially built for Mac computers to aid in data recovery. It works with full efficiency to track the lost data and tries to restore it with the specialised algorithms. It has many futuristic features that makes the software efficient and runs smoothly on. It is extremely easy to download Recoverit 9.0 free version on one's Mac or Windows PC. The existing users of the application can just upgrade their Recoverit 8.5 to the latest version for free. On the other hand, new users can visit the official website of Recoverit Data Recovery to download the installer.

Uninstalling Mono on macOS

Visual Studio.net For Mac

Run this script in a terminal: