The in-browser code that configures the runner via iframe src querystring parameters typically uses a case sensitive lookup. They should be treated case-insensitively.

Here is what the console says when I try the first example in https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/keywords/foreach-in

{type: "HIDE_EDITOR"}
mscomdocs.style.app.css:14 {type: "CONFIGURE_CLIENT", client: t}
mscomdocs.style.app.css:14 {type: "NOTIFY_HOST_PROVIDED_CONFIGURATION", configuration: {…}}
mscomdocs.style.app.css:14 {type: "NOTIFY_HOST_LISTENER_READY"}
mscomdocs.style.app.css:14 {type: "LOAD_CODE_REQUEST", from: "default"}
mscomdocs.style.app.css:14 {type: "LOAD_CODE_SUCCESS", sourceCode: "using System;??public class Program?{? public sta…ole.WriteLine("Hello!");? }?}??Program.Main();??"}
mscomdocs.style.app.css:14 {type: "SET_CODE", sourceCode: "int[] fibarray = new int[] { 0, 1, 1, 2, 3, 5, 8, … Output:?// 0?// 1?// 1?// 2?// 3?// 5?// 8?// 13"}
mscomdocs.style.app.css:14 {type: "CONFIGURE_MONACO_EDITOR", editorOptions: {…}, theme: "vs-light"}
mscomdocs.style.app.css:14 {type: "SHOW_EDITOR"}
mscomdocs.style.app.css:14 {type: "NOTIFY_MONACO_READY", editor: t}
mscomdocs.style.app.css:14 {type: "RUN_CODE_REQUEST"}

mscomdocs.style.app.css:14 POST https://try.dot.net/workspace/workspaceId/compile?hostOrigin=https%3A%2F%2Fdocs.microsoft.com 400 (Bad Request)
(anonymous) @ mscomdocs.style.app.css:14
t.fetch @ mscomdocs.style.app.css:14
value @ mscomdocs.style.app.css:14
(anonymous) @ mscomdocs.style.app.css:14
(anonymous) @ mscomdocs.style.app.css:14
(anonymous) @ mscomdocs.style.app.css:14
postMessage (async)
DotNetOnline.run @ global.min.js?v=276:4791
(anonymous) @ global.min.js?v=276:4685
Promise resolved (async)
activateCodeBlock @ global.min.js?v=276:4678
activateCodeBlock @ global.min.js?v=276:4625
(anonymous) @ global.min.js?v=276:3712
mscomdocs.style.app.css:14 {type: "RUN_CODE_FAILURE", ex: Error: FetchError: {"type":"default","status":400,"ok":false,"statusText":"Bad Request","headers":{"…}
global.min.js?v=276:4822 timeout
(anonymous) @ global.min.js?v=276:4822
Promise rejected (async)
DotNetOnline.run @ global.min.js?v=276:4817
(anonymous) @ global.min.js?v=276:4685
Promise resolved (async)
activateCodeBlock @ global.min.js?v=276:4678
activateCodeBlock @ global.min.js?v=276:4625
(anonymous) @ global.min.js?v=276:3712

{type: "RUN_CODE_FAILURE", ex: Error: FetchError: {"type":"default","status":400,"ok":false,"statusText":"Bad Request","headers":{"…}
global.min.js?v=276:4822 timeout
(anonymous) @ global.min.js?v=276:4822
Promise rejected (async)
DotNetOnline.run @ global.min.js?v=276:4817
(anonymous) @ global.min.js?v=276:4685
Promise resolved (async)
activateCodeBlock @ global.min.js?v=276:4678
activateCodeBlock @ global.min.js?v=276:4625
(anonymous) @ global.min.js?v=276:3712

global.min.js?v=276:4822 timeout
(anonymous) @ global.min.js?v=276:4822
Promise rejected (async)
DotNetOnline.run @ global.min.js?v=276:4817
(anonymous) @ global.min.js?v=276:4685
Promise resolved (async)
activateCodeBlock @ global.min.js?v=276:4678
activateCodeBlock @ global.min.js?v=276:4625
(anonymous) @ global.min.js?v=276:3712

Please add support for NuGet packages in the web interface, perhaps similar to .NET Fiddle.

Great job. MS. But no paste option..

I can't run nor edit code, the system says...

The service is temporarily unavailable. We are working on it.

Hi,

Please add support for save/rebase code, preferably adding accounts code are associated with.

An exception thrown by successfully-compiling user code is not displayed in the output pane.

The exception is returned in the json response from the server. It appears to affect both try.dot.net/ide and docs.microsoft.com.

Going to the getting started guide for .NET it looks like the markdown isn't being formatted and I have an empty "Run" box to the right.

Currently, long-running code snippets can time out without any apparent user feedback. The response code is a 503. This should be replaced with some clear indication of a timeout and a response code that distinguishes this from a service availability issue.

Run the following code:

using System;

public class Program
{
  public static void Main(params object[] args)
  {
    Console.WriteLine("Hello              again!");
  }
}

Program.Main();

The output appears as:

Hello again!

You have implemented something that is Juypter-like. Very cool. Why not let users create, save and share their own tutorials?

when I was trying to run my code on C# online compiler then it not running and says that ""This service is temporarily unavailable"

There is a problem after running the code, if you want to modify the code e.g add or remove code, you cant write anything, its blocked, the only way to activate the code editor is by right clicking and and cut, that activates code editor to keep adding or removing code. So might want to fix that.

The web interface only takes advantage of half the height of the screen.

Please expand it to the actual window size.

Hi!
Whilst doing Numbers in C#, step 5.

The question is to calculate the area of a circle.

i've got the following code:
`double radius=2.15;
double pi = Math.PI;
double oppervlakte = pi * (radius * radius);
Console.WriteLine("De oppervlakte van de circel is: {0}", oppervlakte);

when i submit this code, it gives an invalid value.
Because the IDE on the web gives me as answer:
De oppervlakte van de circel is: 14.5220120412188

Whilst, i submit this code in my VStudio it gives the answer:
De oppervlakte van de circel is: 19,6349540849362

`

Would it be viable to get proper C# Intellisense like in VS Code? Assuming you're building this on the Monaco editor, wouldn't it be adding the language service?

Once i run a code in editor it runs...but after that when i need to run other code old code doesn't edit

I tried to run the first hello World quick start using Safari on Mac. It consistently fails.

One try had this request ID: Request-Id: |29027195-4d151a5e318c6cd6.1.2.106.1.

The failures are consistent for any of the examples.

/cc @LadyNaggaga @piotrpMSFT @jonsequitur

Selecting text does not work in Chrome 63.0.3239.132 (macOS) after you do it once.

Repro steps:

• Highlight a line of text in web editor
• Change focus from highlighted line (to another area in text editor or outside of the editor scope, doesn't make a difference)
• Not able to highlight another line of text or cursor actions begin to behave sporadically in editor

In the In-Browser Tutorial I encounter the following "error"
Code :
int what = max + 3;
Console.WriteLine($"An example of overflow: {what}");

Error message:
(1,12): error CS0103: The name 'max' does not exist in the current context

Copy and paste, if the user has not cleared the .NET Editor do more with strings section of the tutorial there is a conflict in the variable declaration message it is duplicated with the past operation. When exploring additional methods we should just need the additional Writelines .

Typine in the interactive window did not work in firefox, but did in IE

No description when I search for "try dot net" in Bing. Which will put some folks off trying it.

Google the same

I assume this is because of https://try.dot.net/robots.txt blanket disallow:

User-agent: *
Disallow: /

Perhaps there's a way to "Allow" some file that the search engines would use for a description: or possibly you could just stop disallowing them?

You should allow users to specify the .net version they wish to work in.

The wide matrix of ,net versions will be confusing to new users. You should allow users to specify whether they wish to work in .net core, standard, 4.5, etc.

You can make this choice unobtrusive so that novice users can just try stuff, but you should also allow users to specify a .net version

Opening on my mobile (Android, Samsung Galaxy S7).

Wrote Console.Ou in the editor.
Autocompleted to Console.OuConsole.OuConsole.Ou

double radius = 2.50;
double area = Math.PI * radius * radius;
Console.WriteLine(area);

This error occurred when I want to solve problem in decimal "error CS0019: Operator '*' cannot be applied to operands of type 'decimal' and 'double"

decimal radius = 2.50M;
decimal area = (decimal)Math.PI * radius * radius;
Console.WriteLine(area);

URL: https://docs.microsoft.com/en-us/dotnet/csharp/quick-starts/hello-world#step-4

There is a typo in the code example in the first box.

"Console.WriteLine("[{trimmedMessage}]");" should be "Console.WriteLine($"[{trimmedMessage}]");"

It would be nice to know what valid library namespaces are available. For example I tried using System.Net.Http but it was not available. Instead of having to try what I can use and can't use it would be useful to have a searchable list somewhere.

As I add reference docs, I find that a couple additional namespaces should be imported for ease of use:

using System.Threading; // For Thread.CurrentThread.CurrentCulture
using System.Globalization; // for lots of globalization types

Paste this code into the editor. No output at all.
Comment out the "var c = t.GetConstructor" line. Now there's output.

There are React errors in the console.

class C {
  public string T;
  public string F;
}

var t = typeof (C);

foreach (var m in t.GetMembers()) {
  if (m.MemberType == System.Reflection.MemberTypes.Field) {
    System.Console.WriteLine(m.Name);
    System.Console.WriteLine(t.GetField(m.Name).FieldType);
  }
}

var c = t.GetConstructor(new Type[]{});

It's not convenient to create samples that use modern TAP based async work because the System.Threading.Tasks namespace is not included by default. That could lead people to use older APIs instead of the async and await based protocol.

I had a conversation on email about this with @TheRealPiotrP that this change would make the default interactive experience different than the local experience for Visual Studio or dotnet CLI users. Should this concept be expanded to update the default list of imported namespaces in the C# templates for Visual Studio and dotnet new. /cc @KathleenDollard @Pilchie

When squiggles indicate a compile error, correcting the error doesn't always clear the issue. In the example shown in the screen shot, I typed:

var x = hello();
Console.WriteLine(x);

and hit the Run button. This caused the squiggle to appear under the hello invocation. Adding the method declaration allowed the code to execute successfully but the squiggle remained.

try.dot.net takes advantage of browser caching to speed up load times, but does not have a cache busting strategy in place. Some changes now require Ctrl+F5 in order to load on client machines. This should be done automatically through version strings in resource request URLs or some similar mechanism.

Hi, getting the below error on .NET Editor

"The service is temporarily unavailable. We are working on it."

URL used - https://docs.microsoft.com/en-us/dotnet/csharp/quick-starts/hello-world#step-1

Thank you!

Regards
Srisubha A

Firefox Quantum 57.0.2 (64-bit)

Sometimes works, sometimes doesn't. Sometimes allows entry and other times? Delete key on keyboard has not effect?

Please introduce some keyboard shortcuts for basic actions, such as run (preferably F5 - overriding browsers behavior to avoid accidental refresh), etc.

In the code editor, for example, support typing
cw<TabTab> to get Console.WriteLine('')
Thanks!

Allow users to specify that they are coming from another language java, javascript, etc, Then provide language specify pointers when users language features that are different in their language. This would be especially helpful when the same syntax yield different results or where there is a way to do something in one language that is easy but different in another.

For example:

the || javascript operator is roughly equivalent to the C# ?? operator.

If someone indicates they are coming from JS, and they make write something like
Console.WriteLine(firstName || lastName)

recognize the issue and suggest ??.

This shouldn't take this much time(more than 1 minute at minimum) and copy doesn't work reliably..These kind of issues makes people don't try this even after improved iterations

As I create a lengthy line, I can see my text as I write off the page (with the window scrolling to the right as it should), but the start of the line cannot be viewed by moving the horizontal scrollbar as expected. Arrow keying my cursor to the left is a workaround.
Microsoft Edge 41.16299.15.0
Zoom at 150%

The initial code snippet uses { both on the same line and on a separate line. Feel like it should be consistent here.

Full snippet:

using System;
using System.Linq;

public class Program
{
  public static void Main()
  {
    // !!! NEW LINE !!!
    foreach (var i in Fibonacci().Take(20))
    {
      Console.WriteLine(i);
    }
  }

  private static IEnumerable<int> Fibonacci()
  {
    int current = 1, next = 1;

    // !!! SAME LINE !!!
    while (true) {
      yield return current;
      next = current + (current = next);
    }
  }
}

EDIT Url is https://try.dot.net/