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Return HTML from ASP.NET Web API

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孤街浪徒
孤街浪徒 2020-11-30 19:24

How to return HTML from ASP.NET MVC Web API controller?

I tried the code below but got compile error since Response.Write is not defined:

public clas
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  • 再見小時候
    2020-11-30 19:30

    ASP.NET Core. Approach 1

    If your Controller extends ControllerBase or Controller you can use Content(...) method:

    [HttpGet]
public ContentResult Index() 
{
    return base.Content("<div>Hello</div>", "text/html");
}

    ASP.NET Core. Approach 2

    If you choose not to extend from Controller classes, you can create new ContentResult:

    [HttpGet]
public ContentResult Index() 
{
    return new ContentResult 
    {
        ContentType = "text/html",
        Content = "<div>Hello World</div>"
    };
}

    Legacy ASP.NET MVC Web API

    Return string content with media type text/html:

    public HttpResponseMessage Get()
{
    var response = new HttpResponseMessage();
    response.Content = new StringContent("<div>Hello World</div>");
    response.Content.Headers.ContentType = new MediaTypeHeaderValue("text/html");
    return response;
}
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  • 陌清茗
    2020-11-30 19:46

    Starting with AspNetCore 2.0, it's recommended to use ContentResult instead of the Produce attribute in this case. See: https://github.com/aspnet/Mvc/issues/6657#issuecomment-322586885

    This doesn't rely on serialization nor on content negotiation.

    [HttpGet]
public ContentResult Index() {
    return new ContentResult {
        ContentType = "text/html",
        StatusCode = (int)HttpStatusCode.OK,
        Content = "<html><body>Hello World</body></html>"
    };
}
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