Category Archives: dotNET

DotNet Core Version Confusion

I see people scratching their heads over this a lot so am dropping it here even though I’m sure it’s stated in many places already.

When you are at the dotnet command line (aka the CLI aka Command Line Interface) and type ‘dotnet’ you will be shown the version of the runtime.

When you add the version parameter (‘dotnet –version’) that will return the version of the SDK (aka CLI aka Command Line Interface) that you are working with.

Here’s an example:

If you are confused, you’re not alone. There’s a good discussion/debate on GitHub about how to alleviate this confusion at  What should dotnet –version display?

 

Vermont .NET Birthday Cakes Throughout the Years

As Visual Studio prepares for the VS2017 launch and the 20th anniversary of Visual Studio, I started reminiscing of Vermont.NET birthdays of the past. Our first meeting was in February 2002. Here’s a screenshot (thanks to the way back machine!) from October 2002 of our hand-made (by yours truly) ASP.NET 1.0 website:

image

More fun though is the various cakes we’ve had throughout the years when we’ve celebrated the passing time.

First is the cake made by user group member Laura Blood for our Feb 2003 meeting, our first anniversary.

image

According to my blog, we had cake at our Feb 2006 meeting with special guest (thank you INETA), Ken Getz. I don’t seem to have a picture though.

Another was from our 6th year. We had  a presentation on unit testing that night by Sarah Cameron who came down from Montreal.

vtdotnet6b

2010 was our 8th year. We didn’t have cake for our Feb meeting but we DID for the April meeting which was the launch of Visual Studio 2010.  Dave Burke designed this cake and it was implemented by the bakery at a local supermarket:

IMG_3373

For our 10th year, the supermarket bakery suggested balloons and I asked for green ones in honor of Vermont. Many jokes have been made about this cake. I did NOT see the problem until someone pointed it out at the meeting. Then we were all giggling like school boys.

Rob Hale was quick to tweet it so I was able to find this picture easily enough!

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Here was my own creation for Vermont.NET’s 12th anniversary in 2014. Notice that the sprinkles are dinosaurs. Smile

Image result for cake vtdotnet

I wasn’t here for our February 2017 meetup, but our upcoming March meetup will celebrate the VS2017 launch so I plan to make or get a cake to celebrate for sure!

Updated My EFCore / WebAPI / PostreSQL / XUnit Repo to 1.1

Today was dedicated to updating my long running repository sample that I started when EF Core was EF 7  to the newest version of EF Core: 1.1. Here is the updated repo: https://github.com/julielerman/EFCore-ASPNetCore-WebAPI-RTM.

Phase one of this update continues to use project.json.

In addition to updating the version #s of  the Nuget package references, I also made some changes to the code to reflect a few new features.

Pay attention to the tooling packages. In the tools section, the package name has changed – note DotNet at the end –  and the version is currently 1.0.0-preview3 even though IIS version is preview2.

 "tools": {
   "Microsoft.AspNetCore.Server.IISIntegration.Tools": 
       "1.0.0-preview2-final",
   "Microsoft.EntityFrameworkCore.Tools.DotNet":
       "1.0.0-preview3-final"
 },

Also in the dependencies, the EFCore Design package is 1.1.0 like the rest of EFCore. That’s part of the EF APIs, not tooling.

Code changes ….

You’ll discover the DbSet.Find method and change tracker Load method in use in the repository class. These were both added in to EF Core 1.1.

I modified the WeatherEvent class to fully encapsulate its Reactions collection using the support for mapping to IEnumerable. That resulted in some changes to constructors and the addition of an AddReaction method and a local variable.

Unrelated to EF Core, I also modified the SeedData.cs class. It reads a hard coded seeddata.json file to read in seed data. That data used old dates. I wanted the data to show current dates to help me tell that I really and truly pushed new data into the database. Since the Date property of WeatherEvent is private, they way I went about this was to read the raw JSON and update the date value that way then save the raw JSON back to the original file. Then I deserialize the JSON with a current range of dates into a set of WeatherEvents. This also means that I added Delete/Create database back in so the database gets thrown away and recreated/reseeded every time you start up the application.

The tests are also update to use the latest packages. In addition to changing the versions, I had to add a reference to an older package (InternalServices) as its dependency has not yet been updated in xunit.

Here’s the full project.json for the test project since I had to do a bunch of googling to figure it out.

{
 "version": "3.0.0-*",
 "description": "Tests for simple app using aspnetcore, efcore and   
                  postgresql. developed and run on OSX.",
 "authors": [ "Julie Lerman" ],
 "testRunner": "xunit",
 "dependencies": {
   "Microsoft.EntityFrameworkCore.InMemory": "1.1.0",
   "src": "3.0.0",
   "xunit": "2.2.0-beta4-build3444",
   "dotnet-test-xunit": "2.2.0-preview2-build1029",
   "Microsoft.DotNet.InternalAbstractions":"1.0.0"},
 "frameworks": {
 "netcoreapp1.0": {
   "dependencies": {
     "Microsoft.NETCore.App": {
     "type": "platform",
     "version": "1.1.0"
     }
   },
   "imports": [
     "dnxcore50",
     "portable-net45+win8"
     ]
   }
  }
}

I hope you find this repository useful to see EF Core 1.1 in action.

Oh and as per a tweet by Brad Wilson, I added SDK to my global.json file!

Now I have to go learn about why this is important. Clearly it is!

 

Video of My .NET on a Mac Demo at DotNetFringe

Last week at the awesome DotNetFringe conference in Portland, Oregon, I did a 30 minute demo of building an ASP.NET Web API with Entity Framework using Visual Studio Code on my lovely MacBookPro. So it’s .NET on a mac (coding, debugging and running). It is *that* cross platform.

I also talked about some of the features of ASPNetCore and EFCore. I used other cross platform stuff like JetBrains’ DataGrip IDE for interacting with numerous databases on numerous platforms, PostgreSQL database, xunit for testing and more!

It was a boatload of fun and it’s on YouTube:

The solution I showed in the demo is in my github repository: julielerman/EFCore-ASPNetCore-WebAPI-RTM

My Twitter Notes from Scott Guthrie Keynote at DevConnections

Here are my twitter notes from the Scott Gutrhie keynote at DevConnections yesterday morning.

I have just done a quick copy/paste job. Read them from the bottom up!

 VS2010 Generate Class on the fly: RT @bsuzy: @julielermanvt excellent video on that here http://bit.ly/3J0AzW (via http://bit.ly/YTDwU)

  •  
  •  

     

  • and.. @scottgu is repeating that LINQ to SQL is FULLY SUPPORTED in .NET 4 . Not a new message, but people believe him. Glad when he says it

     

     

  •   #devconnections – @scottgu so far showing some of the awesome improvements to the text editing (searching, etc) in VS2010 IDE from TweetDeck

  •   in @scottgu keynote at #devconnections – vs2010 & asp.net 4. not a lot of people (who have normal lives) here have installed the beta yet
  • and no onto ASP.NET MVC (@scottgu at #devconnections…..)

    Notes from Scott Guthrie ASP.NET 4/VS2010 keynote

    Update: Added the tweets to a blog post here.

    I’m at DevConnections and sat in on Scott Guthrie’s keynote.

    I tweeted a lot of notes throughout the session.

    http://www.twitter.com/julielermanvt

    I’ll try to consolidate them at some point.

    There’s a lot coming from te #devconnections hash on twitter. You don’t need to have an account to read this stuff. I didn’t use the hashtag on all of my tweets from the session, thoughI tried.