Update template to include *.user file while creating new applications.

[dreddy-work]

Fixes dotnet/winforms-designer#3724

By default *.user files are excluded/removed by the template engine. Template owners need to override this with exclude flag and remove the *.user files form exclusion list.

Related #5547

Related #3510

Microsoft Reviewers: Open in CodeFlow

[dreddy-work]

@merriemcgaw / @Pilchie need your approval if we decide to take this to RC2

[Pilchie]

We actually need Tactics approval for RC2 right now. Please finish testing and fill out the servicing template, and then we can ask for approval over email.

[dreddy-work]

We actually need Tactics approval for RC2 right now. Please finish testing and fill out the servicing template, and then we can ask for approval over email.

Manually verified and it works as expected. Will send out an email seeking tactics approval.

[Shyam-Gupta]

We will need to make this change for VB and other template types as well.

[dreddy-work]

We will need to make this change for VB and other template types as well.

Noticed that. validating those changes. Only CSharp though. VB did not get TFM specific templates hence were not regressed.

[Shyam-Gupta]

[sayedihashimi]

I don't have much context on this, so I apologize if my question is stupid.

If the user creates a new Win Forms project with this .user file, I assume that this file won't get checked into source control because it's excluded by the default .gitignore file. Seems like it would break for collaborators when they get the code from SCC. Do we need to add a .gitignore in the project root to explicitly add this .user file to source control?

[dreddy-work]

I don't have much context on this, so I apologize if my question is stupid.

If the user creates a new Win Forms project with this .user file, I assume that this file won't get checked into source control because it's excluded by the default .gitignore file. Seems like it would break for collaborators when they get the code from SCC. Do we need to add a .gitignore in the project root to explicitly add this .user file to source control?

@sayedihashimi, No. We do not expect this to be added to source control. Asynch load is improved a lot in latest VS versions and we expect to see designer load issue only when creating new. All existing applications that are newly downloaded/cloned form repo may not exhibit this issue.

[sayedihashimi]

@dreddy-work thanks, that's good to know.