Is there a way to provide the body of a partial as inner HTML?

Question

Let's say this is my partial:

@model SomeData

<div>
    <div>@Model.Title</div>
    <div>BODY(@Model)</div>
</div>

The thing I am looking for is that magic BODY "thing", so I can use the partial like this:

<partial name="_MyPartial" model="someData">
    @BODY {
        <h1>@Model.Welcome</h1>
        <p>@Model.Text</p>
    }
</partial>

Is something similar available already?

*********** UPDATES ****************

I think my question can come down to whether it is possible to do this:

Let's say I define my Model class like this:

public class SomeData 
{
    public HtmlString Body { get; set; }
}

Then in a view:

@{
    var someData = new SomeData
    {
        Body = Html(
            <h1>Hello</h1>
            <p>World</p>
        ),
    };
}

Is there some Html helper to achieve this?

Answer 1

What you need is like a Taghelper. You can try the follwoing code.
SomeData.cs

    public class SomeData
    {
        public string Title { get; set; }
        public string Welcome { get; set; }
        public string Text { get; set; }
    }

MyPartialTagHelper.cs

    public class MyPartialTagHelper : TagHelper
    {
        public SomeData data { get; set; }
        public override void Process(TagHelperContext context, TagHelperOutput output)
        {

            output.TagName = "div";
            output.TagMode = TagMode.StartTagAndEndTag;
            StringBuilder stringb = new StringBuilder();

            stringb.Append("<h1>" + data.Welcome + "</h1>");
            stringb.Append("<p>" + data.Text + "</p>");

            output.Content.SetHtmlContent(stringb.ToString());
        }
    }

Controller

        public IActionResult Index()
        {
            SomeData Data = new SomeData() { Title = "title" };
            return View(Data);
        }

Index.cshtml

@model SomeData
@addTagHelper *,WebApplication4
@{
    var someData= new SomeData() { Welcome="hello",Text="world"};
}

<div>
    <div>@Model.Title</div>
    <my-partial data=someData/>
</div>

Output