Is there a way to determine if a view is rendering as a partial?
I'm hoping to extend the reuse of a partial that I'm writing by catching this...and if necessary assigning the appropriate layout to the View.
At the moment I'm just rendering it in a div, but I could also see us using it as a modal and possible it's own page.
(the modal shouldn't require any change so no worries there)
EDIT:
To clear up what I'm asking.
I'm wondering if there is anyway to determine the difference between a view being rendered by...
/path/to/controller
and
Html.Partial("/path/to/view.cshtml")
Why not #if (Layout==null)?
Still I would recommend another view for the "own" page and set the layout there.
In your view (assuming Razor syntax):
#if(typeof(this) == Controller.PartialView)) //code
or
#if(this is Controller.PartialView) //code
Based on #Pheonixblade9 's response and the lack of other answers it doesn't appear like this is possible at the moment. I ended up just binding the Model of the View as bool and pass this value in when rendering the view/partial.
Related
Is there a way in which I can construct a MVC page such that, if required, I can pull the contents of it without the entire HTML frame. I.e. I want to be able to, if required, pull just the contents (for AJAX Paging) without the refreshing the entire page, but I want that to be possible too
#{
ViewBag.Title = "ViewDevice";
}
<h2>ViewDevice</h2>
You can use partial view to implement reusable part of a view and render it in any view you want like this #Html.Partial("_ViewDevice").
For more information on how to create a partial view see here and here.
Here is a great tutorial thats easy and quick:
http://www.joe-stevens.com/2011/05/30/asp-net-mvc-simple-server-side-ajax-paging-using-jquery/
check it out: https://github.com/kibiluzbad/Ifa
sample online demo: ifademo.apphb.com/
hope it helps
i have two cshtml page one which has the link the makes the popup appear, and another with just the form data and would like to know how i would be able to display the form on the popup, as i am using MVC, to create the form, the plage which has link on is in the ~/views/client/index.cshtml while thr form is ~/views/fb/CreateOrEidt.cshtml the colller is called "FB" and the methos to call is edit, it take the parameter Id
I have tried #hmtl.renderpartial, #html.renderaction, #hmtl.partial, #html.action,
I have also tied these method with a { after the # and the end, doesnt give me a error bust still doesn't display information
The error which i get is razor canot convert type object to void
It's a little unclear what you're trying to achieve but from the error you've mentioned when calling Html.RenderAction you need to call using something like:
#{
Html.RenderAction("ACTIONNAME");
}
Calling the other methods against an action view won't work.
If you're trying to display a view inside a popup though you want to be careful that you don't end up including your layout page etc as this is potentially not the look you're going for..!
The pattern I generally implement for things like this is to simply partial out the form bit that I need to reuse and call renderpartial to display this where I need it. This renders just the html I'm after then and not the whole view (+ layout(s)).
I am setting Layout property of page like below. Because I have few different layouts so this one is different than in ViewStart.cshtml.
#{ Layout = "~/Views/Shared/_BaseLayout.cshtml"; }
Problem arise if my one of view call this view partialy . Even calling page By Html.Partial cause to render partial page with its layout.
I feel that this can be considered bug or wrong desing decision in ASP.Net MVC framework.
I am looking a way to fix this in elegant way. I have my own CustomWebViewPage that is interited from WebViewPage. I have overriden Layout property and if i can understand that view called as partialy so i can set Layout property null for fix this problem. But I am not sure that how can i understand it in my CustomWebViewPage.
Surely we can pass information by ViewData for tell WebViewPage it is partial or not but this is not quite elegant way.
If you call your view using "return partialview()", it is rendered without layout.
public ActionResult MyPartialView()
{
return PartialView();
}
I'm using the typical built in view engine in mvc3 (is there a proper name for it?) for views and master pages and it's including a Razor partial view on the .aspx page. In the masterpage, there is a ContentPlaceHolder with an ID of "ScriptContent".
I want to be able to fill that ContentPlaceHolder from within the Razor partial view but I don't think this is possible. Does anyone know if it is possible and how I would go about doing that?
I already tried rendering it in the partial like so, but that didn't work.
#section ScriptContent {
... content ...
}
It would be very difficult, so much so that I'd recommend finding another way :(. I wish it was easier, but these are the complexities of integrating a new view engine into an existing legacy system.
To give you a head start if you really want to try it: You'd probably need to create a custom base class inheriting from WebViewPage for your Razor content pages, override some of the methods (honestly I'm not too familiar with that aspect so you'd need to debug to follow the pipeline) so that instead of treating the Layout property as the path to a Layout page, you treat it as a Master page. Then you'd need to instantiate the master page and somehow convert the Sections (which were transformed into calls to DefineSection by the Razor parser, and should be stored in a Dictionary somewhere on the base class) in to Content controls and stuff them in the Master Page.
If I haven't boggled your mind by this point, you may just be able to pull this off, but to be honest, I'd avoid it.
P.S. We refer to the older view engine as "ASPX", based on its file extension ;).
So I have a Layout page
<head>
#RenderSection("HeaderLast", required: false)
</head>
A view
#section HeaderLast
{
<script src="#Url.Content("~/Scripts/knockout-1.2.0.js")"
type="text/javascript"></script>
}
<div id="profile-tab">
#{ Html.RenderPartial("_userProfile"); }
</div>
And a Partial view
#section HeaderLast
{
<script type="text/javascript">
alert('test');
</script>
}
<div......
I figured it couldn't be that simple. Is there a proper way to do this out of box or will this always require some kind of mediator and passing stuff around ViewData to manually make the content bubble up to the layout page?
Bounty started: The bounty will be rewarded to the best solution provided for this short coming. Should no answers be provided I will award it to #SLaks for originally answering this question.
You cannot define sections in partial views.
Instead, you can put the Javascript in ViewBag, then emit any Javascript found in ViewBag in the layout page.
#JasCav: If a partial needs its own CSS, it has no good way to get it rendered.
If that's the reason for its use, it could very well be by design.
You don't want to have a separate CSS file x partial/helper. Remember, each separate CSS file means a separate request to get it from the server, thus an additional round-trip that affects time to render your page.
Also you don't want to emit direct CSS to the HTML from the partial/helper. Instead you want it to have appropriate hooks you can use to define all the look in your site's CSS file.
You can use the same hooks you have available for CSS to activate custom JavaScript behaviors for the elements involved When JavaScript is enabled.
Finally it may be the case what you need is not a Partial View, but an extra Layout you use for some pages. With that approach you would have:
A master Layout that gets set automatically on _ViewStart like you probably has now. This defines the sections like in your sample.
A children Layout page. Here you have both the extra html, css, js you need to have for these views. This uses both #RenderBody() and #section SomeSection { } to structure your common extra layout.
Some views that point to the children layout, and others that use the default master layout.
How to get extra data to the children Layout is out of the scope of the question, but you have several options. Like having a common base for your entities; using ViewBag or calling Html.RenderAction to get that shared logic related to shared dynamic elements in the layout.
It looks like there was a similar question on SO - How to render JavaScript into MasterLayout section from partial view?.
Unfortunately, there is no possibility of declaring sections inside Partial Views. That is because RenderPartial ends up rendering totally separate view page. There is a workaround to this, though a bit ugly. But it can look better if using strongly-typed model instead of ViewData.
Basically, you need to keep track of the reference to the view which called RenderPartial and use the DefineSection method on the object passed to push data to that view.
UPDATE: There is also a blog post about dealing with RenderSection you may find useful.
Here is another approach using helper methods and templated delegate
http://blogs.msdn.com/b/marcinon/archive/2010/12/15/razor-nested-layouts-and-redefined-sections.aspx
As a follow up to my question, the JavaScript/CSS combiner/minifier tool Cassette supports this functionality to allow you to compartmentalize your JavaScript and other assets that are required for partials.
I purchased a site license and use this in all of my MVC applications now.