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VB.NET 2005 Tutorials: Using
Really Simple Syndication
Recently, I had a requirement
Learn how to create and
the Data Form Wizard - In
(RSS) is an XML standard for
to put together a website
execute stored procedures
this tutorial you will learn
declaring content entries
that deals with taking
using .NET.
about Using the Data Form
for small content feeds. The
somewhat elaborate financial
Wizard - Building a
RSS format has gained
surveys. While the
Single-Table Data Form,
popularity over the years
questions and answers
Transform and Filter Data,
due to its simplicity. The
themselves are good
Using Server Explorer,
XML file formatted according
candidates for being
Drag-and-Drop From Server
to the RSS specification is
database driven, there were
Explorer, What the user Can
either found as a physical
a large number of nuiances
and Cannot Drag from Server
file or is obtained via a
ranging from UI items,
Explorer, Filtering Data,
Web site that handles the
business rules, and
Filtering With DataViews,
request and sends the
calculations that just
Filtering At the Server,
content over the Internet to
didn't fit into a database
Transforming Data with
the client.
driven strategy. With this
Lookups and Master Detail.
in mind, my initial strategy
was to create version
specific classes and
reference them in version
specific ASP.NET pages. Of
course, this accomplished
the initial requirement.
However, whenever a new
version needs to be
implemented, I had to copy
all of the ASP.NET pages and
modify the references to the
appropriate version specific
class name. Refactoring
provides a better
alternative and here's how:
Date: Jul, 22 2005 Date: Oct, 07 2006 Date: Oct, 15 2004 Date: Nov, 15 2004 |
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ASP.NET is built on a core
In this tutorial you will
RSS (Rich Site Summary) news
Learn how to use the tools
set of classes and
learn how to add a filter to
feeds are easily consumed
and options in Visual Studio
interfaces that abstract the
a Grid View Control, To
and displayed in an ASP.NET
.NET to increase your
HTTP protocol. The three
modify the query with a
web forms page using no more
productivity and work
core abstractions are the
parameterized filter, the
than a few lines of codes.
efficiently in a team
context (HttpContext) that
WHERE Clause, Parameter
However, listing the RSS
environment when building
represents the current HTTP
properties, Parameter Value
news feed links in this
ASP.NET applications.
request, handlers (classes
Editor and To test filtering.
fashion can take up
that implement IHttpHandler)
considerable page space.
that are capable of
Instead, it would be more
servicing HTTP requests, and
convenient to display them
modules (classes that
in a small embedded window
implement IHttpModule) that
that automatically scrolls
can pre/post process HTTP
them to the user. This
requests to provide
method substantially reduces
additional services.
the page real estate devoted
to the news feed, while
displaying the same
information in a compact,
attractive, and intuitive
manner. Once you have
developed a method for
displaying RSS news in this
format, it would be still
more convenient to implement
the method as a custom
control that you can add to
any ASP.NET web forms page
with just a few lines of
code. This article shows
you how.
In this article,
you will learn how to create
the illusion of continuous
seamless scrolling by: 1)
using two datagrids to
display the same listing;
and 2) scrolling the entire
total list, but then
repeating the scrolling when
it has passed over the first
list.
Date: May, 28 2003 Date: Jun, 04 2006 Date: Jan, 23 2006 Date: Aug, 08 2003 |