How to add Line breaks in ASP.NET Core

Question

How can I display HTML text that has line breaks and have those line breaks maintained?

public void OnGet()
{
    ViewData["Msg"] = "Hello World \n Hello World \n Hello World \n Hello World";
} 

The above is straight text with embedded line feeds

@page
@model IndexModel
@{
    ViewData["Title"] = "Home page";
 }

<textarea rows="4" asp-for="@ViewData["Msg"]" style="width:100%">ViewData["Msg"]</textarea>

Message : @ViewData["Msg"] 

The text views correctly in the textarea but not as straight HTML Message : @ViewData["Msg"]. I just want to display static text and not having to add it to a predefined textarea. Below shows the result of the code below:

Answer 1

Try to replace "\n" by line break tag:

public void OnGet()
{
    var text = " Hello World \n Hello World \n Hello World \n Hello World".Replace("\n","<br>");
    ViewData["Msg"] = $"<div>{text}</div>";
} 

On the view side use Html.Raw() helper to render without HTML-encoding:

@Html.Raw(@ViewData["Msg"])