Download ASP.NET in a Nutshell by G. Andrew Duthie PDF

By G. Andrew Duthie

ASP.NET in a nutshell appeals to 2 audiences: newbies and complicated builders. the center workforce is ignored. The samples have been simply coded and labored. besides the fact that, the thing version describing the items have been referenced as complicated schematics within the appendix. one other set of examples had to be incorporated that confirmed tips on how to have interaction with the article equipment and houses of the .net elements. I needed to visit the net and browse a number of articles to find the best way to control the elements via their item version. i have incorporated a number of samples on my site.

Configuration Settings used to be no longer essentially defined. The customized blunders dealing with was once tricky to understand.

The tree keep watch over view used to be initialized utilizing an xml constitution. The OnTreeNodePopulate occasion used to be want a pattern code demonstration. I create a treenode referred to as which rather a lot the kids nodes on call for utilizing the PopulateOnDemand callback.

The Datalist keep an eye on has a few very important attributes which needs to be attended too: Datakeyfield (Primary Index), Datasource (the Oledb database connection-a AccessDataSource type). ASP.net incorporates the visible C++ culture of occasion mapping. i have selected to exploit OnItemCommand occasion to catch the e.commandname for "Insert","Edit","Update", and "Delete". Insert calls for a unique regimen of creating noticeable a panel with an enter shape embedded and upon clicking the store button mapping to the AddNewRecord functionality which creates a insert into sql string and assigns it to the datasource insertcommand characteristic and transacts the dml then resets the enter variable and hides the panel.

ASP.NET System.Data.OleDB (connection, command item) energetic Server Pages. The oledb insurance is extremely overlooked within the ASP.NET in a nutshell booklet. I used the web to find tips to open a MS entry oledb connection and execute an replace DML utilizing the oledbcommand object.

Validators have been very curiosity. I create an enter shape has 3 kinds of validation workouts: required validator, customized validator, and variety validator.
If the validation rule isn't met than an customized blunders message will seem to the correct of the textbox. you could strength validation by way of calling the validator approach validate. the outcome will be again to the calling application via invoking the IsValid approach. i have used a typical expression to envision for legitimate e-mail, foreign money, and different styles. there are various useful websites for normal expression which are searchable from my web site from "active server pages" query.

ASP.NET Calendar keep watch over - altering reveal Years - Updating a Textbox with choice - energetic Server Pages I coded a codeset of interplay among a textbox, dropdown mixture field, and a calendar. i began through populating a drop down mixture field with plus and minus two decades from the present yr and choosing the present yr. An occasion handler is outlined for the OnSelectedIndexChanged price which known as "Set_Calendar" eventhandler. "Set_Calendar" occasion handler makes use of the chosen worth for 12 months from the drpCalYear keep watch over to initialize the calendar utilizing the VisibleDate estate of the calendar regulate. The autopostback characteristic of the drop down combobox has to be set to precise permitting a postback while index choice switch has happened.

Other themes that have been of interest:
Understanding the system.array
Using .net collections
working with arraylists and hashtables
Using the appliance object
Using the consultation object
reading and writing cookies
using the question string
understanding VB classes
formating Numbers, dates, and times
Using the datareader
overriding producings
raising occasions and enforce callbacks

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Extra resources for ASP.NET in a Nutshell

Example text

Example 2-2. NET will output a page that documents how the web service should be called, and also provides the ability to test the invocation of the web service. This page is shown in Figure 2-2. Figure 2-2. NET also allows you to review the Web Service Description Language (WSDL) description of your web service. WSDL, which we'll discuss further in Chapter 4, is an XML-based format for describing the functionality exposed by a web service, including the format and data type of input and output parameters, and can be considered a contract for how clients interact with the web service.

NET Server Controls that provide advanced client-side functionality will gracefully degrade for browsers that do not support DHTML or script. 0 or later. • Are built on the Common Language Runtime and provide all the benefits of the runtime, such as managed execution, type safety, and inheritance. NET. NET. NET toolbox onto the page. • Provide a rich set of server controls that provide almost all the functionality required for a web application. NET ships with a broad array of built-in server controls.

NET, @ directives can also have attributes that further enhance the configuration ability of the directive. NET is greatly expanded from classic ASP, which provides only five directives (whose functionality is now provided by attributes of the @ Page directive). NET page and allows you to set the page language and enable or disable such features as buffering, session state, and debugging. 0 (or other development tools that create only STA components). ) for components that need access to these objects through ObjectContext or the OnStartPage method.

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