Hi @lilyliang-0256,
Is it possible to view Razer with design view as same as .aspx file in Microsoft Visual Studio?
If not, is there other way to solve it?
There doesn't have this feature to view the Asp.net core Razor page application page in the design view.
To view the razor page, you have to running the application, and view the page via Browser. If you want to modify your apps managed source code while the application is running, you could try to use the .NET Hot Reload.
.NET Hot Reload applies code changes, including changes to stylesheets, to a running app without restarting the app and without losing app state. Hot Reload is supported for all ASP.NET Core projects. More detail information, see Introducing the .NET Hot Reload experience for editing code at runtime and .NET Hot Reload support for ASP.NET Core.
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Best regards,
Dillion