Code Completion not Working in VS2022 and .NET Core 6

Question

Code Completion not Working in VS2022 and .NET Core 6

Jeff Gaines 351

I started my first Core 6 project for Windows in VS2022 this morning. I added a couple of buttons and a ListView to a form then hit F7 to add the code for the buttons and the button names weren't recognised so I couldn't add the code. Typing the Button name in manually didn't help either as the name still wasn't recognised.

I always add code like this as I use common names/functions and it makes it easy to move code between projects.

Is this functionality not available with Core 6 projects?

Viorel 122.5K Reputation points

2023-07-04T16:57:12.43+00:00

Did you type the button names inside some functions of the form's class?
Jeff Gaines 351 Reputation points

2023-07-04T17:42:20.34+00:00

Viorel - Yes a void function ClassInitialise() - which is standard in all my classes.
Anna Xiu-MSFT 31,056 Reputation points Microsoft External Staff

2023-07-05T08:56:39.4266667+00:00

Hello, for this statement “hit F7 to add the code for the buttons and the button names weren't recognised“, could you share us any screenshots to investigate it further?

You can update your VS2022 to the latest version and try again.
Jeff Gaines 351 Reputation points

2023-07-14T14:07:41.1766667+00:00

Sorry to have been so long but I have been shuffling computers!

I have started afresh with a new install of Windows 10 and VS2022 and a new Net 6 App. It has one form and one Button named btnTest.

I attach a screenshot of the code where I am trying to add the bntTest.Click event but as you can see from the screenshot attached the name btnTest is not recognised.
Anna Xiu-MSFT 31,056 Reputation points Microsoft External Staff

2023-07-19T08:02:47.16+00:00

Hello, can you upload the screenshots again?
Jeff Gaines 351 Reputation points

2023-07-19T10:57:20.9266667+00:00

Hopefully attached.

Try again...
Viorel 122.5K Reputation points

2023-07-21T13:02:37.04+00:00

Did you check if the generated FormMain.Designer.cs file, which appears in Solution Explorer, contains the definition of your button (private Button btnTest)?

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Viorel 122.5K Reputation points

2023-07-04T16:57:12.43+00:00

Did you type the button names inside some functions of the form's class?
Jeff Gaines 351 Reputation points

2023-07-04T17:42:20.34+00:00

Viorel - Yes a void function ClassInitialise() - which is standard in all my classes.
Anna Xiu-MSFT 31,056 Reputation points Microsoft External Staff

2023-07-05T08:56:39.4266667+00:00

Hello, for this statement “hit F7 to add the code for the buttons and the button names weren't recognised“, could you share us any screenshots to investigate it further?

You can update your VS2022 to the latest version and try again.
Jeff Gaines 351 Reputation points

2023-07-14T14:07:41.1766667+00:00

Sorry to have been so long but I have been shuffling computers!

I have started afresh with a new install of Windows 10 and VS2022 and a new Net 6 App. It has one form and one Button named btnTest.

I attach a screenshot of the code where I am trying to add the bntTest.Click event but as you can see from the screenshot attached the name btnTest is not recognised.
Anna Xiu-MSFT 31,056 Reputation points Microsoft External Staff

2023-07-19T08:02:47.16+00:00

Hello, can you upload the screenshots again?
Jeff Gaines 351 Reputation points

2023-07-19T10:57:20.9266667+00:00

Hopefully attached.

Try again...
Viorel 122.5K Reputation points

2023-07-21T13:02:37.04+00:00

Did you check if the generated FormMain.Designer.cs file, which appears in Solution Explorer, contains the definition of your button (private Button btnTest)?

Answer 1

Anna Xiu-MSFT 31,056 Microsoft External Staff

Hi @Jeff Gaines ,

Welcome to Microsoft Q&A!

Please right click on the Button control > Properties > find Design property > change the name to btntest.

User's image

Then, go to FormMain.cs and it displays normally.

User's image

Sincerely,

Anna

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Jeff Gaines 351 Reputation points

2023-07-21T12:31:45.9033333+00:00

Thank you for that. The button was called btnTest, why would changing it to btntest make a difference please?
Jeff Gaines 351 Reputation points

2023-07-21T12:33:10.66+00:00

I can't see my comment now.

Can you advise me why changing the name of the Button would make a difference please?
Anna Xiu-MSFT 31,056 Reputation points Microsoft External Staff

2023-07-24T10:20:16.8633333+00:00

Hello, I just test it with btntest. You can change the Design name of the button to btnTest you require:
Jeff Gaines 351 Reputation points

2023-07-24T10:28:25.6966667+00:00

I'm sure I saw a post asking if btnTest was in the .designer.cs file - anyway I checked and it wasn't.

Seems that adding the button in the GUI didn't add it in the .designer file. I will start again having pretty well sorted out my computers and see how it goes!
Anna Xiu-MSFT 31,056 Reputation points Microsoft External Staff

2023-07-27T07:21:11.62+00:00

Hello, any update?
Jeff Gaines 351 Reputation points

2023-07-27T13:14:11.8966667+00:00

I started from scratch and this time the button was saved in the .designer file and it worked.

I am trying to work out what advantages Net6 has over Net 3.5, I need to try and find a summary.
Anna Xiu-MSFT 31,056 Reputation points Microsoft External Staff

2023-07-28T08:11:33.1466667+00:00

Hello, there is no .NET 3.5. It is .NET Framework 3.5.

About .NET 6, you can view this. You can check the differences between .NET and .NET Framework.

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Code Completion not Working in VS2022 and .NET Core 6

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