ASP.NET Web Pages - Objects - shahzade baujiti

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Tuesday, April 23, 2019

ASP.NET Web Pages - Objects

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ASP.NET Web Pages - Objects
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Web Pages is much often about Objects.

The Page Object
You have already seen some Page Object methods in use:

@RenderPage("header.cshtml")

@RenderBody()
In the previous chapter you saw two Page Object properties being used (IsPost, and Request):

If (IsPost) {

if (Request["Choice"] != null) {
Some Page Object Methods
Method Description
href Builds a URL using the specified parameters
RenderBody() Renders the portion of a content page that is not within a named section (In layout pages)
RenderPage(page) Renders the content of one page within another page
RenderSection(section) Renders the content of a named section (In layout pages)
Write(object) Writes the object as an HTML-encoded string
WriteLiteral Writes an object without HTML-encoding it first.
Some Page Object Properties
Property Description
IsPost Returns true if the HTTP data transfer method used by the client is a POST request
Layout Gets or sets the path of a layout page
Page Provides property-like access to data shared between pages and layout pages
Request Gets the HttpRequest object for the current HTTP request
Server Gets the HttpServerUtility object that provides web-page processing methods
The Page Property (of the Page Object)
The Page property of the Page Object, provides property-like access to data shared between pages and layout pages.

You can use (add) your own properties to the Page property:

Page.Title
Page.Version
Page.anythingyoulike
The pages property is very helpful. For instance, it makes it possible to set the page title in content files, and use it in the layout file:

Home.cshtml
@{
Layout="~/Shared/Layout.cshtml";
Page.Title="Home Page"
}

<h1>Welcome to Omegas</h1>

<h2>Web Site Main Ingredients</h2>

<p>A Home Page (Default.cshtml)</p>
<p>A Layout File (Layout.cshtml)</p>
<p>A Style Sheet (Site.css)</p>
Layout.cshtml
<!DOCTYPE html>
<html>
<head>
<title>@Page.Title</title>
</head>
<body>
@RenderBody()
</body>
</html>


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