need help on how to use ASP.Net to design a website

For @fieldmobsta: a short, practical starter plan for building an ASP.NET website (updated for current tooling), plus notes on what the other replies touched on.

Decide the stack first. Legacy ASP.NET Web Forms (what @coolshail_87 hinted at) runs on the .NET Framework and needs Windows/IIS. For new projects prefer ASP.NET Core (Razor Pages, MVC, or Blazor) — cross‑platform and actively maintained. As @Infarction requested more detail: pick the app style you want (page-focused, MVC, or single‑page with Blazor) and the hosting target (Windows IIS, Linux, or cloud).

Install the tools and create a minimal app quickly. Install the .NET SDK and either Visual Studio (Windows) or Visual Studio Code (cross‑platform). Then from a terminal:

dotnet new webapp -o MySite
cd MySite
dotnet run

That creates a Razor Pages app and serves it locally. Use dotnet new mvc -o MyMvcApp for MVC. See official getting‑started docs for step‑by‑step setup and templates: Get started with ASP.NET Core and download the SDK from dotnet download.

Next practical steps: add data with Entity Framework Core, or a lightweight data layer (SQLite for prototypes). Use ASP.NET Core Identity or an external provider for authentication. When ready to publish, deploy to a host that matches your app type (Azure App Service, Linux containers, or IIS for Web Forms). See EF Core docs for database guidance: Entity Framework Core.

Common early problems: mismatched SDK/runtime versions (dotnet --info), port conflicts, missing connection strings, or trying to run Web Forms templates on .NET Core. Build a small CRUD app first (create/read/update/delete), confirm it runs locally, then move to authentication and deployment. @xyte pointed to official learning resources; the links above are current starting points that walk through the full workflow.