Asp

ASP.NET 2.0 and Visual
Studio 2005 Overview

Paul Litwin
Collaborative Data Services,
Public Health Sciences,
Fred Hutchinson Cancer Research Center
cds.fhcrc.org
plitwin@fhcrc.org

New Features at a Glance
Framework Controls

Data Login Other New
Web Parts
Controls Controls Controls

Themes Mobility and
Page

Master Pages Compilation
and Skins Localization

Role
Membership Profiles Configuration
and APIs
Services

Management

Site Health Other
Maps Monitoring Services

© 2002-2005 Deep Training/Litwin Consulting, Inc. 2

IDE Changes


©2002-2005 Deep Training/Litwin Consulting, Inc. All Rights Reserved Worldwide. Unauthorized duplication is strictly prohibited.

Page 1

Getting Started with VS 2005
u No need to create a project
u Instead create a new Web Site

u Web sites can be
file-system based
file-


VS 2005 Highlights (1 of 6)
u Editor doesn’t reformat HTML unless you
doesn’
ask it to!
u Selection preserved when switching
between Design and Source (HTML)
views
u Can now validate HTML against
additional browsers and XHTML
u Edit and Continue is reborn!


u Code-
Code-behind and inline code are equal
citizens
l Full support for IntelliSense for both styles
l Choose your style in Add New Item dialog
u Source changes tracked in margin
l Unsaved changes in yellow
l Recently saved changes in green



Page 2

u IntelliSense works everywhere
l HTML
l Code
l Page directives
l Web.config
l Design view
n Technically these are smart tags


u Speaking of Config Files
l Three ways to edit settings
1. Use IntelliSense within web.config file
2. Select ASP.NET tab inside of IIS Admin
application, click Edit Configuration btn
n Extensive control of web.config settings
3. Select Website | ASP.NET Configuration
n Not as complete as IIS Admin tool
n Includes Security Setup wizard
n Works with non-IIS sites
non-


u Creating event handlers now consistent
across languages (VB or C#)
l Can do it from property sheet
for both languages
u Moving windows easier
l Thanks to window guides
u Toolbox categorizes controls



Page 3

u VS ships with personal Web server
l No need to create a virtual root
l Next version of Cassini Web server
u Lots of ways to connect to a site


And Did I Mention…
Mention…
u Express Editions
l low -cost entry point for enthusiast/hobbyist/part-
enthusiast/hobbyist/part-
time dev
u Team System
l An expanded version of VS that speaks to the
whole design/development/testing life- cycle
life-
n client/server, collaboration based

n robust/scalable source control

n work item (e.g., bugs) tracking

n unit testing, load testing

n code analysis

n project portal

n lots more …


Expanding Visual Studio
Evaluate Interact with
.NET students

Learn how Build cool
to program apps

Hobbyists
Enthusiasts

Students Faculty


Page 4

Expanding Visual Studio

Developer Tester
Project
VSTE/SD VSTE/ST Manager
Application
Team Explorer
Architect

Infrastructure VSTE/SA
Architect

Team Foundation Server

Source Build
Control Server
Users & Web Browser
Management Project Work
Portal Items
Reporting
© 2002-2005 Deep Training/Litwin & Analytics
Consulting, Inc. 13

Visual Studio 2005
“Personalized productivity ”

Testers

Architects

Enterprise Devs
Consultants

Professionals

VB6 Devs
Part-Timers

Hobbyists
Students

Enthusiasts

Data Controls



Page 5

Binding Data to Controls
u ASP.NET 1.x supported rich 1-way
1-
binding syntax but you still had to write
quite a bit of code to get data in and out
of controls
u ASP.NET 2.0 supports two-way
two-
(read/write) binding with no code in
many situations


Data Source Control
u A family of controls that assist in data
binding
l Middleman between data bound controls
and data sources
u Types of Data Source Controls
l Tabular l Hierarchical
n SqlDataSource n XmlDataSource

n AccessDataSource n SiteMapDataSource

n ObjectDataSource


New 2.0 Data-Bound Controls
Data-
u List Controls
l BulletedList
u Composite Controls
l GridView
l DetailsView
l FormView
u Hierarchical Controls
l TreeView
l Menu



Page 6

GridView Control
Example: GridView.aspx
u A “code - less ” DataGrid
code-less”
u Walk- through of grid with automatic
Walk-
sorting (ascending & descending),
pagination
1. Add GridView to page
2. Using GridView Tasks pane, choose
DataSource
3. Check EnablePaging & EnableSorting


GridView with Updating
Example: GridViewUpdate1.aspx
u Can also be done without code
1. Add GridView to page
2. Choose Data Source
l On quot;Configure the select statementquot; page
l Click Advanced Options
l Check “ Generate Insert, Update, and Delete
statements”
statements”
3. Configure GridView
l Check “ Enable Editing” and/or Enable Deleting
Editing”


The Single-Record Form Problem
Single-
u ASP.NET 1.x provided no help to the
developer having to create a single -record
single-
“form” view of data
form”
u ASP.NET 2.0 gives us two solutions
l DetailsView – fixed look (supports styles but no
field templates); can't get at individual fields
l FormView – fully templated (VS will generate basic
template for you); will work with validation controls
u Both support editing, pagination



Page 7

FormView vs. DetailsView
Controls


Master Pages and Navigation


Navigation
u Three Pieces
1. Navigation SiteMap
n Web.sitemap XML file
n Allows you to create a sitemap for navigation
purposes
2. SiteMapDataSource
n Reads Web.sitemap file and makes available
to TreeView control
3. Controls
n TreeView – displays navigation tree
n Menu – displays flyout menus
n SiteMapPath – quot;breadcrumbquot; path


Page 8

Master Pages
u Major shortcoming of ASP.NET 1.x: lack
of any easy way to create page
templates that other pages can inherit
u Enter ASP.NET 2.0 Master Pages
l Easy and powerful way to create a common
layout for all (or a subset of) pages in site
l Support for multiple levels of master pages
l WYSIWYG support for master pages in
Visual Studio


Mastering Master Pages
u Arrange content on master page
(.master extension)
l Add placeholders for content pages using
the ContentPlaceHolder element
u Create pages based on master page
l Use MasterPageFile attribute in page
directive
l Add content to Content element


Master Pages Demo



Page 9

Login Controls and Security


New Security Parts (1 of 2)
u Forms Authentication
l Cookieless authentication now supported
u Login Controls
l UI controls for managing login of users
u Membership
l Standardized solution for storing forms
authentication data
l Membership.ValidateUser method
l Login controls wrap up membership service
l Provider-
Provider-based

New Security Parts (2 of 2)
u Role Management
l Simplifies authorization code you have to
write
l Provider-
Provider-based
u Personalization
l Simplifies storing of site personalization
data in user profiles
l Support for strongly -typed profile properties
strongly-
l Provider-
Provider-based



Page 10

New Features at a Glance
Framework Controls

Data Login Other New
Web Parts
Controls Controls Controls

Themes Mobility and
Page

Master Pages Compilation
and Skins Localization

Role
Membership Profiles Configuration
and APIs
Services

Management

Site Health Other
Maps Monitoring Services


Forms Authentication
<authentication mode=quot;Formsquot;>
<forms name=quot;namequot;
cookieless=UseCookie|UseUri|AutoDetect|
UseDeviceProfile
defaultUrl=[URL]
domain=domain name
loginUrl=quot;urlquot;
protection=quot; All |None|Encryption|Validationquot;
timeout=quot;30quot;
path=quot;/quot;
requireSSL=quot;true| false quot;
slidingExpiration=quot;true|false quot;>
</forms>
</authentication>


Using Security Setup Wizard
u Walks you through
setting up
authentication,
membership
provider, users, and
role management
for Web site
u Can setup Forms or
Windows auth
u Start wizard from
Web Site Admin
Tool (Website |
ASP.NET Configuration)



Page 11

Login Controls
u Login – log in users (goes on login page)
u LoginView – displays different views
based on whether user is authenticated
u PasswordRecovery – recover or reset
lost password
u LoginStatus – displays login or logout
link
u LoginName – displays login name for
authenticated users
u CreateUserWizard – steps user through
wizard to create new account
u ChangePassword – changes password
for user


Login Controls Demo


Membership Service
u Saves you from having to manage users and
passwords
u Login controls may obviate need to directly work with
the classes in many cases
u Choice of providers (SQL Server, Access, etc.)
u Example Uses
l Authenticate User
n Membership.ValidateUser()

l Find User by Email address
n Membership.FindUsersByEmail()

l Estimate number of users online
n Membership.GetNumberOfUsersOnline()



Page 12

Role Service
u Simplifies authorization using roles
u Manage roles at design time using ASP.NET
Web Admin tool
l Or use Roles and RoleProvider classes at runtime
u Use LoginView control to display custom
content per role
l Order RoleGroup elements from highest to lowest
precedence (e.g., Admin first, etc.)
u Or use User.IsInRole() method from code


Role Service
u Role data carried between pages by ASP.NET
using encrypted cookies
u Reduces round-trips to database for role
round-
information


LoginView Roles Example
LoginView.aspx
<asp:LoginView ID=quot;lvRolesquot; Runat=quot;serverquot;>
<RoleGroups>
<asp:RoleGroup Roles=quot;Adminsquot;><ContentTemplate>
This message prints for members of the Admins group.
</ContentTemplate>
</asp:RoleGroup>
<asp:RoleGroup Roles=quot;Managersquot;><ContentTemplate>
This message prints for members of the Managers
group.
</ContentTemplate>
</asp:RoleGroup>
<asp:RoleGroup Roles=quot;Usersquot;><ContentTemplate>
This message prints for members of the Users group.
</ContentTemplate>
</asp:RoleGroup>
</RoleGroups>
</asp:LoginView>


Page 13

IsInRole Roles Example
Roles.aspx.cs
protected void Page_Load (…)
{
// Order by highest to lowest
if (User.IsInRole(quot;Developers quot;))
lblRole.Text = quot;Developer. You rule!quot;;
else if (User.IsInRole(quot;Managers quot;))
lblRole.Text = quot;Manager. So?quot;;
else if (User.IsInRole(quot;Users quot;))
lblRole.Text = quot;Lowly userquot;;
else
lblRole.Text = quot;Not logged in.quot;;
}


Personalization Service
u No need to create fields in a database to
keep track of personalization data
u Allows you to strongly type your
personalization data
u You maintain personalization data in
user profiles


Creating a Profile

<profile
defaultProvider=quot;AspNetSqlProviderquot;>
<properties>
<add name=quot;sexquot; type=quot;System.Stringquot;/>
<add name=quot;agequot; type=quot;System.Int32quot; />
<add name=quot;colorquot;
type=quot;System.Stringquot;/>
<add name=quot;birthdatequot;
type=quot;System.DateTimequot; />
</properties>
</profile>



Page 14

Reading/Writing Profile Data
Profiles.aspx

protected void cmdSave_Click(…)
{
Profile.sex = txtSex.Text;
}
protected void cmdGet_Click(…)
{
txtSex.Text = (string)Profile.sex;
}


Personalization Profiles
u Especially useful for customizing…
customizing…
l Themes
l Web Parts


Themes and Skins



Page 15

Themes & Skins
u Theme
l Collection of property settings (skins) that
allow you to define a standard look of
pages and controls
u Skin
l Set of visual attributes applied to a control


What's Themable?
u Properties that control appearance
u Does not include content or behavior
attributes such as AllowPaging,
AutoPostback


Creating a Theme – Basics
u Create folder under your site's Themes
folder
u Theme name is derived from folder
name
u Theme folder may contain .skin, .css,
and image files



Page 16

Creating a Theme – Steps
1. Add theme folder to app using Add Folder|Theme
folder
2. Add . aspx page to theme folder.
.aspx
3. Add controls to page
4. Customize the look of the controls
5. Remove ID attribute and any attributes that you do
not want to be part of theme (e.g., Text)
6. Add SkinID attribute to any control to create alternate
skins
7. Remove all non-control content from file
non-
8. Rename file to .skin extension


Applying Themes
u Add attribute to Page directive of page
l Theme attribute
n Theme settings override any local settings

l StyleSheetTheme attribute
n Local settings override theme settings

l Themes can also be applied programmatically in
the Page_PreInit event by setting the Page's
Theme or StyleSheetTheme property
u Reference SkinIDs when appropriate to get
alternate skin for control


Theme & Skin Example
AdditionalTopics/ThemedSite/Themes



Page 17

Pumpkin
Pumpkin Orange.skin

<asp:Label Runat=quot;serverquot; ForeColor=quot;Orangequot;
Font-Names=quot;Comic Sans MSquot;></asp:Label>
<asp:TextBox Runat=quot;serverquot; ForeColor=quot;Orangequot;
Font-Names=quot;Comic Sans MSquot;></asp:TextBox>
<asp:Button Runat=quot;serverquot; ForeColor=quot;Orangequot;
Font-Names=quot;Comic Sans MSquot; />
…

<asp:Label SkinId=quot;Reversequot; Runat=quot;serverquot;
ForeColor=quot;Whitequot; BackColor=quot;DarkOrangequot; Font-
Names=quot;Comic Sans MSquot; ></asp:Label>
<asp:TextBox SkinId=quot;Reversequot; Runat=quot;serverquot;
ForeColor=quot;Whitequot; BackColor=quot;DarkOrangequot; Font-
Names=quot;Comic Sans MSquot;></asp:TextBox>


ThemedPage.aspx

<%@ Page Language=quot;VBquot;
Theme=quot;Pumpkinquot; ... %>
…
<asp:TextBox
SkinID=quot;Reversequot; ID=quot;txtAgequot;
Runat=quot;serverquot; Width=quot;63pxquot;
Height=quot;22pxquot;>


Themes
u Can also be set dynamically from code
u Need to set theme in Page_PreInit event



Page 18

Other Topics
u Caching Enhancements
u Cross-
Cross-Page Posting
u Compilation Improvements
u Validation Groups


Caching Dependencies
u Work with SQL Server 7/2000
l Works by ASP.NET polling database
u Work even better with SQL Server 2005
l No polling necessary


Creating SQL Cache Dependency
on SqlDataSource

u Set a few
properties in
property sheet



Page 19

Creating SQL Cache Dependency
from Code

Cache.Insert(quot;dsTitlesquot;,
dsCache, new
SqlCacheDependency(quot;pubsquot;,
quot;titlesquot;)


Cross-
Cross-Page Posting

u Ability to use Web server controls even when
posting across pages
u Use PostBackUrl property of button control to
indicate target of post
u On Target page, you can retrieve control
values using code like …
like…
strValue =
PreviousPage.FindControl(quot;txtNamequot;)


What's New in Compilation
u Autocompile anything
l CS files, VB files, RESX files, and so on
l Simply drop files into special directories
l Extensible with custom build providers
u New code-behind model
code-
l Fixes fragilities in version 1
l Relies on partial class support in compilers
u Precompile and deploy without source
u Much richer Copy Project menu


Page 20

Precompilation
u Precompile.axd precompiles sites in
place to avoid first-access delays
first-


Deploying without Source
u Aspnet_compiler.exe precompiles sites
and deploys without source code
u Accessible from Visual Studio via
Build|Publish menu


Validation Groups
ValidGroups.aspx

u Allows you to group together related
validation controls
u Button in one group will not trigger controls in
a separate group
<asp:Button ID=quot;cmdSearchCity quot; Runat=quot;serverquot;
Text=quot;Searchquot; ValidationGroup =quot;CitySearchquot; />

<asp:RequiredFieldValidator ID=quot;rfvSearchNamequot;
Runat=quot;serverquot; ErrorMessage=quot;Enter name.quot;
ControlToValidate=quot;txtSearchNamequot;
ValidationGroup=quot;NameSearchquot;>
</asp:RequiredFieldValidator>



Page 21

Conclusion
u ASP.NET 2.0 is an exciting new update
u Visual Studio 2005 gets much better
u Data controls make two-way data binding easy and
two-
reduce code significantly
u Master pages make visual inheritance of a page template
a snap
u Numerous security enhancements make the management
of users, roles, profiles so much easier
u Themes allow you to provide a consistent & configurable
look to pages
u Other cools features include cache dependencies,
validation groups, x-page posting, precompilation , etc.
x- precompilation,
u The above features and more make ASP.NET 2.0 / VS
2005 a must-have upgrade
must-

Thank You
u Download materials (slides/samples)
l cds.fhcrc.org



Page 22

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