Html.RenderPartial() syntax with Razor

Question

This works, because it returns the result of partial view rendering in a string:

@Html.Partial("Path/to/my/partial/view")

But I prefer to use RenderPartial and it seems I need to write:

@{Html.RenderPartial("Path/to/my/partial/view");}

instead of:

@Html.RenderPartial("Path/to/my/partial/view");

To get it to work. Error message:

 Compiler Error Message: CS1502: The best overloaded method match for 'System.Web.WebPages.WebPageExecutingBase.Write(System.Web.WebPages.HelperResult)' has some invalid arguments

If there any better way instead of opening code block @{...} just for one method call?

What is the error that you get when you try to use @Html.RenderPartial() — Neil Knight
– Neil Knight, Commented Aug 8, 2011 at 10:34
I've added message to my post. I understand why it shows an error @Html.RenderPartial() is parsed as roughly as <%?:@Html.RenderPartial() ?> which is wrong and not as <? Html.RenderPartial(); ?>, but I'm looking for a workaround. — artvolk
– artvolk, Commented Aug 8, 2011 at 10:41
Related: Html.Partial vs Html.RenderPartial & Html.Action vs Html.RenderAction. BTW why do you prefer to use RenderPartial? — Paolo Moretti
– Paolo Moretti, Commented Aug 8, 2011 at 11:19

Ofer Zelig · Accepted Answer · 2018-05-27 12:56:46Z

143

RenderPartial() is a void method that writes to the response stream. A void method, in C#, needs a ; and hence must be enclosed by { }.
Partial() is a method that returns an MvcHtmlString. In Razor, You can call a property or a method that returns such a string with just a @ prefix to distinguish it from plain HTML you have on the page.

edited May 27, 2018 at 12:56

answered Aug 8, 2011 at 10:44

Ofer Zelig

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2 Comments

Ofer Zelig Over a year ago

Why do you prefer using Html.RenderPartial instead of Html.Partial? If you, from some reason, want/need to go with Html.RenderPartial, there is no workaround - that's the syntax.

artvolk Over a year ago

I use it because it should be more effective (because it doesn't return huge string).

Nicholas Murray · Accepted Answer · 2011-08-08 11:13:16Z

46

Html.RenderPartial() is a void method - you can check whether a method is a void method by placing your mouse over the call to RenderPartial in your code and you will see the text (extension) void HtmlHelper.RenderPartial...

Void methods require a semicolon at the end of the calling code.

In the Webforms view engine you would have encased your Html.RenderPartial() call within the bee stings <% %>

like so

<% Html.RenderPartial("Path/to/my/partial/view"); %>

when you are using the Razor view engine the equivalent is

@{Html.RenderPartial("Path/to/my/partial/view");}

answered Aug 8, 2011 at 11:13

Nicholas Murray

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1 Comment

JoeBrockhaus Over a year ago

"bee stings" -- that's a first (for me?)

RouR · Accepted Answer · 2012-06-15 09:47:20Z

10

@Html.Partial("NameOfPartialView")

answered Jun 15, 2012 at 9:47

RouR

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artvolk Over a year ago

I'd like to use Html.RenderPartial(), that's why I asked this question. The details: "Performance-wise, it's been claimed that rendering directly to the output stream is better (which was why they went w/ the void RenderPartial to start with)." from here stackoverflow.com/a/2729851/118810

Sankar · Accepted Answer · 2014-01-17 09:53:29Z

0

If you are given this format it takes like a link to another page or another link.partial view majorly used for renduring the html files from one place to another.

answered Jan 17, 2014 at 9:53

Sankar

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