Open `Index.razor` by default in `blazorserver`, `blazorwasm` templates

[TanayParikh]

Razor class library does this.

Basically you want to have the file you want to open as a conditional secondary primaryOutput for non-CLI hosts, then add a post action.

aspnetcore/src/ProjectTemplates/Web.ProjectTemplates/content/RazorClassLibrary-CSharp/.template.config/template.json

Line 99 in 5026aef

"id": "openInEditor",

Originally posted by @phenning in #42215 (comment)

[TanayParikh]

@phenning I'm not seeing where the file path is actually specified (I'm assuming the description isn't parsed for the path, is it?):

aspnetcore/src/ProjectTemplates/Web.ProjectTemplates/content/RazorClassLibrary-CSharp/.template.config/template.json

Lines 99 to 107 in 5026aef

	"id": "openInEditor",
	"condition": "(HostIdentifier != \"dotnetcli\" && HostIdentifier != \"dotnetcli-preview\")",
	"description": "Opens Areas/MyFeature/Pages/Page1.cshtml in the editor",
	"manualInstructions": [],
	"actionId": "84C0DA21-51C8-4541-9940-6CA19AF04EE6",
	"args": {
	"files": "1"
	},
	"continueOnError": true

[phenning]

@phenning I'm not seeing where the file path is actually specified (I'm assuming the description isn't parsed for the path, is it?):

aspnetcore/src/ProjectTemplates/Web.ProjectTemplates/content/RazorClassLibrary-CSharp/.template.config/template.json

Lines 99 to 107 in 5026aef

	"id": "openInEditor",
	"condition": "(HostIdentifier != \"dotnetcli\" && HostIdentifier != \"dotnetcli-preview\")",
	"description": "Opens Areas/MyFeature/Pages/Page1.cshtml in the editor",
	"manualInstructions": [],
	"actionId": "84C0DA21-51C8-4541-9940-6CA19AF04EE6",
	"args": {
	"files": "1"
	},
	"continueOnError": true

args.files is the zero based index into the primaryOutputs object array

"files": "1"
or
"files": "1;2" if you wanted to open multiple files.

aspnetcore/src/ProjectTemplates/Web.ProjectTemplates/content/RazorClassLibrary-CSharp/.template.config/template.json

Line 81 in 5026aef

"path": "Areas/MyFeature/Pages/Page1.cshtml"

[javiercn]

Is Index.razor what we want to open vs other things like Program.cs? Could we open both?

[TanayParikh]

Is Index.razor what we want to open vs other things like Program.cs? Could we open both?

Index.razor was just the first one to come to mind. Yeah we can definitely do program as well.

[phenning]

Now that I looked at the other web templates, I noticed none of the others are opening any files. Maybe we should do the same here. I just asked the question in case the team wanted to consider for this template. We might want to err on the side of consistency though