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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
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
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