I had used both the Partial View and also the Layout Concept in my Project i cannot able to differentiate. But what i am feeling is both doing the same work. Can anyone tell the brief idea about the Partial View and Layout and difference with example?
In addition to Josh's answer, my aweeeesomeee paint skills would like to draw you a picture that should explain all..
Admit it... you're in awe...
You see the header and footer... you could even have partial view's there too.
EDIT...
Layout
To give you a different example of why you use each component (layout / view / partial view), imagine that you own a website that has 100 pages in total, and lets say you want to update the design of your website, how are you going to do it?
Updating each page individually would drive me insane, because your replicating your code constantly for every single page, just to update your design.
This is what the Layout view helps you solve, you use the Layout view to create a template for all of your pages.
View
Using our existing scenario of 100 page website, each page is going to have content that is unique, the View allows us to display this content whilst using our template from the Layout.
Partial View
Now lets imagine that we allow our visitors to comment on our pages, each comment must look consistent, and behave exactly the same as all the other comments throughout our website... To achieve this, you would use a Partial View which would act as a template for the comments that you receive on your website.
The benefits of doing this is that you don't have to repeat your code everywhere, you only have to create one Partial View to render any comment.
Layouts allow you to generate a consistent look across your entire site. Think of them like Master pages of ASP.net.
What are Layouts?
You typically want to maintain a consistent look and feel across all
of the pages within your web-site/application. ASP.NET 2.0 introduced
the concept of “master pages” which helps enable this when using .aspx
based pages or templates. Razor also supports this concept with a
feature called “layouts” – which allow you to define a common site
template, and then inherit its look and feel across all the
views/pages on your site. - http://weblogs.asp.net/scottgu/asp-net-mvc-3-layouts
Partial views allow you to construct a view and render it inside of a parent view. For instance, say have a site that allows you to comment on an article. The section in which displays and allows a user to add a comment is a piece of reusable code that is inserted into all of the pages you wish the functionality to exist. What makes this important is that you can then modify that single partial view file to update every view that renders that partial instead of tracking down each page that implements that code individually.
Here is a Youtube Vid that helped me understand partial views rather well. https://www.youtube.com/watch?v=SABg7RyjX-4
edit: Additionally, the guy who created the linked vid has an entire library of playlists that may help a new MVC coders. He walks through a great deal of the MVC features with decent examples. https://www.youtube.com/user/kudvenkat
Non-technical explanation:
Layout is a foundation of the house, View is a single room in that house and PartialViews are windows in that room or sockets with electricity in walls.
To make it simple Here is my answer:
1)
A layout is something that we can include once in a single page
and we can use the same layout to any number of pages.
2)
A partial view is something that we can include the same content
any number of times in a single page(where it is required) and can
be used in any number of pages.
Related
I've implemented Entity Framework into my project, since I need to insert some data via a form to a custom table in my SQL database.
I've scaffolded all the CRUD views and have a button that links to the create view. This all works well and fine, but I need the create view to use the Master template that contains my header, navigation and footer.
In my create view I need to import my model, but I am unable to both use the #model and the #inherit keywords in the same file, so I am unable to inherit the master template.
Is it not possible to use Entity Framework with Umbraco? Do I need to create a partial view or Macro?
If you want to use a master page you have to set it at the header of the page like this:
If the name of the master page is Master here is the code.
#{
Layout = "Master.cshtml";
}
If you are using a umbraco page and you want to pass some custom objects from your controller here is the code for that:
#inherits Umbraco.Web.Mvc.UmbracoViewPage<List<ViewModel>>
If you are using only custom logic from backend which is not related to umbraco dashboard itself you dont need a macro!
Remember to inherit from SurfaceController.
Here is another question which may tell you more in details how to create your model and pass it to the view.
Remember your model should iherit from 'RenderModel' and you have to use umbraco form to post data back to the server as well.
If you have anything else unclear just let me know!
You also may wish to consider the concept of a headless CMS. That way, your views, models or anything in your app won't be necessarily dependent on the classes of your CMS. There are numerous headless CMSes in the market. Although I work with one of the vendors, I really want you to choose to your own preferences.
We are still using asp.net mvc WebForms (legacy code) with a lot of our own frameworks.
one of our features is gathering the static content on run time and creating the min and optimize versions. (we found out it was faster).
Yet Razor rendering pipeline is different then WebForms, so the content is rendered out of order.
For example we have a view to render lets call it Home, Home has several calls to X.Css("css_x");
we gather them into a 'list' Home has partial view to render which inside also has X.Css invocation.
After Home is rendered into the output buffer stack the _Layout is rendered again with X.Css being called. assume that now we need to render all of the css files but the order is wrong.
How is it possible to synchronize view and layout with the order i need (first layout then views and partials)
Any one got an idea.
(if i am not understood please let me know and i'll try to elaborate more)
So this is my first post. I guess, this is the right place for me to learn some new things in ASP.net. Well, I just started creating a system using Asp, and just to ask ask anyone here, how to apply the downloaded layout template into my master page? Looking forward to any feedbacks. Have a nice day!
Implementing a layout in to your ASP.NET website is a matter of breaking it up in parts like header, footer, main content etc. The header and footer parts are good candidates to go into your master page, but the main content will be different per page, so that belongs into the pages itself.
Here you have a good read about site wide layouts using masterpages:
http://www.asp.net/web-forms/tutorials/master-pages/creating-a-site-wide-layout-using-master-pages-cs
I have an issue where I have two pages that deal with very similar things and as such quite a few of their methods and aspx server controls have identical method names and variables. In short, it's pretty obvious that the code was copy/pasted and the innards were merely altered. I have a pending request that the two pages be merged so I've explored a number of options as to how I should best merge them.
First I thought that perhaps I could put one of the pages in a masterpage that will allow for a content place holder wherein I'd then put the code/controls, but it looked to be a bad idea once I started to make plans. For one the similar names would probably still be a problem and second it seems a rather clunky way to merge two pages together.
I've considered renaming all the methods and controls but on the other hand it's going to take a lot of time picking over the code and the controls to rename them all. My worry is that if I try to change the problematic method names, controls, IDs, I'll introduce a lot of bugs in the code.
Is there a better way to view two pages in one webpage?
You can do so with iFrames. But I think the website gets better maintaining with .net controls (.ascx files), and then calling them in a new page
That thing is called user control.
UserControl class
read this official tutorial
I think there can be 3 options that will work for you:
1. Put all common stuff in a user control and use it in both pages. This is the most straight forward solution and this is the main reason user controls exist - reuse of both UI and code behind. This is most likely the best option.
2. Have a utility class that will contain all common methods. The disadvantage of this solution is that you will only share code, not UI.
3. You can have a BasePage that inherits from Page, and have both pages inherit from BasePage. Again, you will shared only the code, not the UI. This is usually a good solution when you want to add some functionality for all your web pages.
If it is for ASP.Net Web Forms have you checked out Nested Master Pages, not merely a single MastPage?
If you have a common Theme or layout this goes in the Base MasterPage, your nested MasterPage then exposes common UI controls, Events Handlers etc that are common between the next group of Pages (the layer you referred to), your final ASPX Page then exposes the individual page functionality that is different between the ASPX Pages, UI controls, Events etc for each unique page.
By using the # MasterType page declaration you ASPX Page has a strongly typed reference to one or all MasterPages which would allow the ASPX page to easily access methods and properties of the common MasterPage.
Is there a c# command to include another web page - the equivelant of the php require?
I know how to do server side includes but was looking for something code based.
Thanks
Thanks for the answers all. I think I might need to explain further. I have several sub-pages that I will be loading during the use of the site using an xmlhttp request. Initially however, I need to load the starting sub-page before the user has interacted with the site. I could do this with js, but that would require more overhead in server calls from the client for the initial load. I already use master pages, but this is a little different. Since this is done serverside initally but must remain able to be refreshed clientside, I don't think I can make these pages into controls can I? I am pretty new to .Net so I may be making my life harder than I need to.
I think what you may be looking for are MasterPages and UserControls. A MasterPage allows you to define a basic template that is "filled in" by the implementing pages by having the implementing page add it's own content to the ContentPlaceHolders defined on the MasterPage. A UserControl is a re-usable piece of markup and associated code that you can reference from your mark up or add dynamically to the page being rendered in codebehind.
The way ASP.NET is structured, you shouldn't really need to do this. Code is compiled, so all of your classes and functions should be accessible simply by referencing the relevant assembly or namespace, without having to include individual code files.
You might be looking for user controls, which allow you to create fragments of markup with their corresponding code behind, and then reference these in your page.
With ASP.NET MVC it looks like this:
<% Html.RenderPartial("LogOnUserControl"); %>
This way you can put another UserControl on your page.
you can use include in asp.net like php include from below mentioned code
<!--#include file="include/leftmenuscript.inc"-->
You can also use a master page, as someone stated below, which flushes out your basic layout and lets you define content place holders, which other pages can implement and fill in the content. Master pages are a popular approach for defining page elements that are consistent across all pages, like your nav there (also things like headers, footers, common scripts, CSS, etc.).