too ll shed asp net tips and tricks

7/31/2019 Too Ll Shed ASP Net Tips and Tricks

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ASP.NET Tips and Tricks

Russ FustinoMicrosoft Corporation


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What we will cover

Development Tips and Tricks Error Handling Tips and Tricks

Production Tips and Tricks


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Session Prerequisites

Level 300

ASP

Basic knowledge of ASP.NET


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Agenda

Development Tips and Tricks

Error Handling Tips and Tricks



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Development Tips And TricksFile upload

ASP.NET provides built-in file upload support No posting acceptor required

No third party components required

Accessible through two APIs: Request.Files collection

server control

HttpPostedFile Object:

HttpPostedFile.InputStream HttpPostedFile.ContentType

HttpPostedFile.FileName

HttpPostedFile.SaveAs(fileLocation)


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Sub Btn_Click(Sender as Object, E as EventArgs)UploadFile.PostedFile.SaveAs("c:\foo.txt")

End Sub

Select File To Upload:


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Demonstration 1File Upload


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File system is not the only option

Example: Storing within SQL

Access uploaded file asbyte array

Store file within SQL as image (blob)

Store ContentType and ContentLength also

Provide Edit Link to display page

Edit Link Page sets ContentType header and thenwrites binary array back to client

Development Tips And TricksRicher file upload


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Demonstration 2File Upload With SQL


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Rich server image generation

Additionally supports resizing & cropping

Overlays on top of existing images

Read/Write Any Standard IO Stream

System.Drawing

Dynamically generate GIFs/JPGs from .aspx

Set ContentType appropriately

Optionally output cache results

Development Tips And TricksImage generation


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Demonstration 3Image Generation


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ASP.NET

Enables output of XML

Enables optional XSL/T transform of XML

Binding options File system

Database item

Built-in caching Ensure efficient re-use

Improves performance

Development Tips And TricksASP.NET XML Server Control


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Development Tips And Tricks file sample


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Demonstration 4Static XML


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Sub Page_Load(Sender as Object, E as EventArgs)Dim conn as New SqlConnection(connectionString)Dim cmd as New SqlDataAdapter(select * from products",

conn)

Dim dataset As New DataSet()

cmd.Fill (dataset, "dataset")

Dim XmlDoc as XmlDocument = New XmlDataDocument(dataset)MyXml1.Document = XmlDocEnd Sub

Development Tips And Tricks data sample


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Demonstration 5Dynamically Bind XML


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Application specific settings

Stored inweb.config files

Enables devs to avoid hard-coding them

Administrators can later change them

Examples:

Database Connection String MSMQ Queue Servers

File Locations

Development Tips And TricksApp settings


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1. Create web.config file in app vroot:

2. To return value:

Configuration.AppSettings(dsn)

Development Tips And TricksApp settings steps


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Demonstration 6Application Settings


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Session State no longer requires clientcookie support for SessionID

Can optionally track SessionID in URL

Requires no code changes to app

All relative links continue to work

Development Tips And TricksCookieless sessions


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1. Create web.config file in app vroot

2. Add following text:

Development Tips And TricksCookieless sessions steps


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Eliminates browser flicker/scrolling onbrowser navigation

Smooth client UI but with server code

Automatic down-level for non-IE browsers

No client code changes required

Alternatively set inweb.config file

Development Tips And TricksSmart navigation


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Agenda





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ASP.NET supports page and app tracing Easy way to include debug statements

No more messy Response.Write() calls!

Great way to collect request details

Server control tree

Server variables, headers, cookies

Form/Querystring parameters

Error Handling Tips And TricksPage tracing


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1. Add trace directive at top of page

2. Add trace calls throughout pageTrace.Write(Button Clicked)

Trace.Warn(Value: + value)

3. Access page from browser

Error Handling Tips And TricksPage tracing steps


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Demonstration 7Page Tracing

E H dli Ti A d T i k


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2. Access tracing URL within app http://localhost/approot/Trace.axd

Error Handling Tips And TricksApplication tracing steps


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Demonstration 8Application Tracing



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.NET provides unified error architecture Runtime errors done using exceptions

Full call stack information available w/ errors

Can catch/handle/throw exceptions in any.NET Language (including VB)

ASP.NET also provides declarative

application custom error handling Enable programmatic logging of problems

Automatically redirect users to error pagewhen unhandled exceptions occur

Error Handling Tips And TricksError handling



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Global application event raised ifunhandled exception occurs

Provides access to current Request

Provides access to Exception object Enables developer to log/track errors

Cool Tip:

Use new EventLog class to write customevents to log when errors occur

Use new SmtpMail class to send email toadministrators

Error Handling Tips And TricksApplication_Error


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Demonstration 9Writing to NT Event Log



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Enable easy way to hide errors fromend-users visiting a site

No ugly exception error messages

Enables you to display a pretty site underrepair page of your design

Custom Errors configured within an

application web.config configuration file Can be configured per status code number

Can be configured to only display remotely

Error Handling Tips And TricksCustom errors



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Error Handling Tips And TricksCustom error page steps


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Demonstration 10Custom Errors


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Agenda




P d ti Ti A d T i k


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Per Application Performance Counters Enable easily monitoring of individual

ASP.NET applications

Custom Performance Counters APIs

Now possible to publish unique application-specific performance data

Great for real-time application monitoring Example: total orders, orders/sec

Production Tips And TricksPerformance counters


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Demonstration 11Performance Counters

P d ti Ti A d T i k


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ASP.NET runs code in an externalworker process aspnet_wp.exe

Automatic Crash Recovery

Automatic Memory Leak Recovery Automatic Deadlock Recovery

Can also proactively configure worker

process to reset itself proactively Timer based

Request based

Production Tips And TricksProcess model recovery

Production Tips And Tricks


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Session State can now be externalfrom ASP.NET Worker Process

ASPState Windows NT Service

SQL Server

Big reliability wins

Session state survives crashes/restarts

Enables Web farm deployment Multiple FE machines point to a common

state store

Production Tips And TricksReliable session state

Production Tips And Tricks


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1. Start ASP State Service on a machine net start aspnet_state

2. Create web.config file in app vroot,

and point it at state service machine:

Production Tips And TricksExternal session state steps


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Session Summary

Very easy to implement Little or no coding required for most

Enhances the reliability of your apps


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For More Information

MSDN Web site at msdn.microsoft.com

ASP.NET Quickstart at

http://www.asp.net 900+ samples that can be run online

ASP.NET discussion lists

For good best practice referenceapplications, please visit IBuySpy http://www.IBuySpy.com

S


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MS PressEssential Resources for Developers

Find out other titles from MS Press books at

www.microsoft.com/mspressChoose from Windows 2000, SQL Server 2000, Exchange 2000, Office

2000, .NET Framework, C#, VB.NET, ASP.NET, and XML

T i i


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TrainingTraining Resources for IT Professionals

Introduction to ASP.NET

Course # 2063

Available: Now

To locate a training provider for this course, please access

mcspreferral.microsoft.com/default.aspMicrosoft Certified Technical Education Centers (CTECs)

are Microsofts premier partners for training services

MSDN


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Training &Events

MSDN Training, Tech-Ed, PDC,Developer Days, MSDN/Onsite Events

MSDNEssential Resources for Developers

SubscriptionServices

OnlineInformation

MembershipPrograms

PrintPublications

Library, Professional, UniversalDelivered via CD-ROM, DVD, Web

MSDN Online, MSDN Flash

MSDN User Groups

MSDN MagazineMSDN News

Wh C I G MSDN?


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Where Can I Get MSDN? Visit MSDN Online at

msdn.microsoft.com

Register for the MSDN Flash EmailNewsletter at

msdn.microsoft.com/flash

Become an MSDN CD Subscriber atmsdn.microsoft.com/subscriptions

MSDN online seminars

msdn.microsoft.com/training/seminars

Attend More MSDN Events

B A Mi ft


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Become A MicrosoftCertified Solution Developer What Is MCSD?

Premium certification for professionals who designand develop custom business solutions

How Do I attain MCSD Certification? It requires passing four exams to prove

competency with Microsoft solution architecture,desktop applications, distributed applicationdevelopment, and development tools

Where Do I Get More Information? For more information about certification

requirements, exams, and training options,visit www.microsoft.com/mcp

Mi ft D l R d


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Microsoft Developer RoadmapProducts, Technologies, Subscriptions

20022001

Visual Studio .NET 2002 VS.NET 2003

2003

Client, Server &Services enhancements

Deep integration ofsolution orchestration

Continued languageinnovation

Base features for XMLWeb services & mobileapp development

Visual Studio 6.0

Enterprise lifecycletools

Development teams

Design XML Webservices

Provide architecturalguidance to teams

New product line nowmaps to all levels ofVisual Studio .NET

SOAP Toolkit 2.0 J#, Devices


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MSDN For Everyone

Enterprise Architect

Enterprise Developer

VB, C++, C#Standard

Professional

Visual Studio .NET

Universal

Library

Operating Systems

MSDN Subscriptions

Professional

EnterpriseNEW


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.NET Developer SIGS(CT, MA and ME) msdn.microsoft.com/usergroups

4th Tuesday of each month (CT) CT http://www.ctmsdev.net.

2nd Wed of each month (MA and ME) ME http://www.mainebytes.com Feb 21 ASP.NET Tips and Tricks

MA http://www.idevtech.com

VB.NET 1st Thursday (MA) MA http://www.nevb.com

BACOM 2nd Monday (MA)

MA http://www.bacom.com

Share Point Server (MA) 4th Tuesday

MAhttp://www.starit.com/sughome First meeting Feb 4 7pm

NET Developer SIGS


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.NET Developer SIGS(NH, VT, RI) msdn.microsoft.com/usergroups

.NET user groups in NH http://www.nhdnug.com

http://www.jjssystems.net

.NET user group in Burlington VT First meeting Feb 11 6PM ASP.NET Tips and

tricks

.Net user group for RI

Details coming


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Do you have a very large shop?

See Russ([email protected])

orBill ([email protected])about .NET Readiness offer.

PARTNERS HEALTH CARE INCRAYTHEON COMPANYSTAPLESTEXTRON INCTHOMSON CORPORATIONTYCO INTERNATIONALUNITED HEALTHCARE CORPUNITED TECHNOLOGIES

CORPORATIONAnd more

A B B ASEA BROWN BOVERI INCAETNACIGNAC V SE M C CORPORATIONGETRONICSGILLETTE COMPANYINVENSYS PLCNORTHEAST UTILITIES
mailto:[email protected]:[email protected]:[email protected]:[email protected]


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If youre an ISV.

email Joe Stagner [email protected] and introduceyourself!
mailto:[email protected]:[email protected]


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.NET Blitz program

For your development staff with a minimum sizeof 10 developers in over 300pre-approved companies.

One day onsite training (seminar format)

Needs analysis

90 day MSDN Universal for 5 developers

Contact [email protected] to see if your

company is on the list.
mailto:[email protected]:[email protected]


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Russ Tool Shed9am-4pm

To be scheduled soon!

Signup for the newsletter above for details.

Russ FustinoPrincipal Technology SpecialistMicrosoft Corp

www.microsoft.com/

/usa/newengland/

russtoolshed

S


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VS.NET Launch!

Feb 26 Cromwell CT 105186732

Feb 28 Waltham MA 9am-2pm 105186533

Feb 28 Waltham MA 3pm-8pm 105186549

Mar 5 Providence 105186566 Mar 13 Portland ME 105186557

Mar 14 Nashua NH - 105186565

Live Webcast Events:


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Live Webcast Events:http://www.microsoft.com/usa/webcasts/upcoming/

Architecting Web ServicesJanuary 14, 2002 , 3pmMicrosoft Webcast Presents: XML Basics January16, 2002, 3pm

.NET Class Libraries From A to ZJanuary 22, 2002, 2pm

Understanding Visual InheritanceJan 23, 2002 3pm

Advanced Web Services Using ASP .NETJanuary29, 2002, 2PMWebservices 101January 30, 2002 3pmAdvanced XML/XSLFebruary 1, 2002 3:30pmHow To Build Mobile Solutions Using theMicrosoft Mobile Internet Toolkit February 5, 20022pm

Caching ASP.NET Application Settings February 6,2002, 3pmBuilding a .NET Mobile SolutionFebruary 13, 2002 3pm

Live Webcast Events:


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Live Webcast Events:http://www.microsoft.com/usa/webcasts/upcoming/

XML and Web Enabling LegacyApplications Using BizTalk Server2000 February 19, 2002 2pmAdvanced Webpart DevelopmentFebruary 20, 2002 3pm

How To Develop AsynchronousApplications with .NET FrameworkFebruary 26, 2002 2pm

Introducing .NET Alerts February 27, 2002 3pmPart 1: Architecting an Applicationusing the .NET Framework March 5, 2002 2pm

Part 2: Building a .NET ApplicationMarch 12, 2002 2pmASP .NET - Tips and Tricks March 19, 2002 2pm

Tool Shed Code and PowerPoint


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Tool Shed Code and PowerPointslides

PowerPoint slides:www.microsoft.com/usa/newengland/

russtoolshed Code: http://www.franklins.net/~russ

Carl Franklins
http://www.microsoft.com/usa/newengland/%0Brusstoolshedhttp://www.microsoft.com/usa/newengland/%0Brusstoolshedhttp://www.franklins.net/~russhttp://www.franklins.net/~russhttp://www.microsoft.com/usa/newengland/%0Brusstoolshedhttp://www.microsoft.com/usa/newengland/%0Brusstoolshedhttp://www.microsoft.com/usa/newengland/%0Brusstoolshedhttp://www.microsoft.com/usa/newengland/%0Brusstoolshedhttp://www.microsoft.com/usa/newengland/%0Brusstoolshedhttp://www.microsoft.com/usa/newengland/%0Brusstoolshedhttp://www.microsoft.com/usa/newengland/%0Brusstoolshedhttp://www.microsoft.com/usa/newengland/%0Brusstoolshed


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Carl Franklin s

VB.NET Master Class

Hands-on Expert VB.Net Training withCarl Franklin various cities in New England

Take Carl Franklin's acclaimed VB.NET

Master Class http://www.deeptraining.com
http://www.franklins.net/vbnetmc.asphttp://www.franklins.net/vbnetmc.asp


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