Web Forms and XML Web Services

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Web Forms and XML Web Services

• Tuc Goodwin

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Introduction

• This is the Eighth of 15 planned presentations
• Upcoming presentations

Date Title
5/15/05 Web Forms and XML Web Services
6/11/05 Using ADO.NET
7/9/05 TBD (Tuc is on Vacation)
8/13/05 Deploying Applications
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This Months Objective

• Our overall objective is to
• This Presentation explains how to create menus,
  status bars, and toolbars to enhance the
  usability of an application.

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Demonstration Code

• We will build a short demonstration application
  as we go through this lecture.
• All code samples can be downloaded from
• http//groups.msn.com/NTPCUGDevToolsSIG
• And soon Beginning VB.NET SharePoint Site
• http//69.41.237.216879/BEGVBNET/default.aspx
• End With

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Agenda

• What this presentation is not
• What is a Web Form?
• Web Form Semi-Basics
• Web Form Life Cycle
• Creating a Web Form
• What is a Web Service?
• Creating a Web Service
• Testing a Web Service
• Consuming a Web Service from a Web Form

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What this presentation is not

• A how-to on writing HTML
• HTML is an important skill, but you need to
  develop it yourself. There are many, many
  web-sites on the Internet that can provide
  direction.(can you spell G-O-O-G-L-E?)
• All encompassing
• This is a taste of web development. If you want
  to be good at it, you will need to practice.
  There is a lot that Im NOT going to cover. The
  ASP.NET SIG is a really good place to start.

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What is a Web Form?

• A web form is the basic building block for an
  ASP.NET application. Essentially it is a web
  page that is rendered by a web server to a
  browser.
• It is stored in a file folder that is used by a
  virtual folder. Virtual Folders specify where
  your web application projects are physically
  stored.

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Web Form Semi-Basics
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Web Form Life Cycle
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Creating a Web Project
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Flow vs. Grid Layout
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Creating a Web Form
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Editing a Web Form
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What is a Web Service?

• A web service is an application that exists on
  the internet/intranet, responds to remote
  procedure calls, and does not contain a user
  interface.
• The example I am using comes from the book Visual
  Basic.NET Tips Techniques by Kris Jamsa
  (ISBN0072223189 )

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Creating a Web Service
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Coding a Web Service
ltWebMethod()gt Public Function DateOnly() As
String DateOnly Date.Today.Date.ToString
End Function
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Testing a Web Service
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Consuming a Web Service from a Web Form
Private Sub Button1_Click(ByVal sender As
System.Object,
ByVal e As System.EventArgs) Handles
Button1.Click Dim myWebService As New
localhost.Service1 If
Me.RadioButton1.Checked Then Me.TextBox1.Text
myWebService.DateTime If
Me.RadioButton2.Checked Then Me.TextBox1.Text
myWebService.DateOnly If
Me.RadioButton3.Checked Then Me.TextBox1.Text
myWebService.TimeOnly If
Me.RadioButton4.Checked Then Me.TextBox1.Text
myWebService.DayOfWeek End Sub
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Summary

• We Created a Web Form
• Consumed a Web Service
• and we wrote some more code
• Well continue to build from here

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Next Time

• Using ADO.NET

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Questions?