Active Computers & Programming Posts — Page 88 of 101 « Computers & Programming

How To: Create and submit an XML sitemap with free tools

Check out this SEO video tutorial on how to create and submit an XML sitemap with some free tools from the Internet. You'll find out about using an XML sitemap as a substitution for a robot.txt file, whether submitting an XML sitemap will increase your page rank, and more. You can't get a better search engine optimization tutorial than this.

How To: Do simple XML databinding in MXML

This XML video tutorial will show you how to bind an XML file in MXML in about ten lines. First you'll want to create a Flex project in Adobe Macromedia Flex Builder 2, then create an assets folder and a new XML file in MXML. Coding doesn't get any easier than this. Just watch and learn.

How To: Generate an Microsoft Excel sheet using XML

Check out this video tutorial on how to generate an Excel worksheet using XML. There's a free library from CarlosAG.net, and you need to get the free dll file from there. This video will show you how to use it. You need to use CreateExcelFile in Microsoft Visual Studio to use the XML. You will need to use Microsoft Excel 2003 or 2007 to open this file.

How To: Create a web forms user interface in ASP.Net

n this ASP.Net video lesson, you will explore the various ASP.NET 2.0 server controls available in Visual Web Developer 2005 Express Edition. In addition, you will begin to get familiar with the windows in VWD.

How To: Build a basic site using ActionScript 3 in Flash

In this video tutorial, Creative Cow leader Tony Ross revisits the tutorial how to build a basic site about Colors in Flash. This version is created using Actionscript 3. The basic principles learned from this tutorial will enable the user to create a variety of simple websites. Elements covered are basic Actionscript 3, navigation, labels, button and graphic symbols. Build a basic site using ActionScript 3 in Flash.

How To: Use events in ASP.Net

In this ASP.Net video lesson, you will learn how events can be used in your code, and how to react when those events occur, all in Visual Web Developer 2005 Express Edition.

How To: Work with style sheets and master pages in ASP.Net

In this ASP.Net video lesson, you will begin to learn how Style sheets and Master Pages can be used to maintain consistent appearance for your Web pages.

How To: Use databound controls in ASP.Net

In this ASP.Net video lesson, you will learn how to display data in your ASP.NET 2.0 Web applications through some of the new databound controls.

How To: Work with Gridview and FormView in ASP.Net

In this ASP.Net video lesson, you will learn about the GridView and FormView controls and how you can use some of the features of these controls to make editing and displaying of database content easier. Work with Gridview and FormView in ASP.Net.

How To: Secure a website with membership and roles in ASP.Net

Learn how to secure a web site using the new Membership and Roles features of ASP.NET 2.0. In this ASP.Net video tutorial, the topics include user registration, password recovery, and restricting access to content with roles.

How To: Create a 'contact us' page in ASP.Net

Build a web page to collect information from the user with the Wizard control, validate that information, and use the System.Net.Mail classes to send a confirmation email message. Check out this video tutorial to see all about making a 'contact us' page on a ASP.Net website.

How To: Make a full featured customer login portal in ASP.Net

Follow along through the creation of a fictitious customer portal to learn about master pages, themes, membership, roles, site navigation, user profiles, and the Web Site Administration Tool in this ASP.Net video tutorial.

How To: Create data driven websites with ASP.Net

See how simple it is to create data-driven web sites using ASP.NET 2.0, Visual Web Developer 2005 Express Edition, and SQL Server 2005 Express Edition. Watch this video tutorial to learn how to create a database, add its data, and display that data on a web page.

How To: Implement an HttpModule in ASP.Net

In this video tutorial, Scott Golightly shows how to implement a simple HttpModule that uses the BeginRequest and EndRequest events to store some data about the request and later display that data to the user. Scott also shows how to register the module in the Web.config file.

How To: Set up the SQL membership provider in ASP.Net

Join Patrick Hynds as he demonstrates how to set up the SQL Membership Provider to add Forms authentication to your ASP.NET 2.0 Web site, in this video tutorial. There are a few tips and tricks involved, such as using the aspnet_regsql.exe utility, which are covered in the video.

How To: Implement URL writing in ASP.Net

In this video tutorial, Scott Golightly shows how to create an ASP.NET HttpModule to “rewrite” the URL when a request for a web page comes in. You may want to rewrite URLs to create friendly URLs or to direct an old URL to a new URL. We will look at the code needed to implement URL rewriting and also how to handle page post back events.

How To: Make event handlers for ASP.Net web pages and controls

In this video tutorial, Chris Pels will show how to create event handlers for ASP.NET web pages and web server controls. First, learn how to create page level events for the standard page events provided by the .NET Framework. See how to automatically bind the events to a page using the AutoEventWireup attribute as well as programmatically bind the events. Next, learn how to create and bind event handlers for the standard web server control events. Also learn how to connect multiple events fo...

How To: Read, write, and delete cookies in ASP.Net

In this video tutorial, Chris Pels will show how to read, write, and delete cookies in an ASP.NET application. First, learn the basic operations for manipulating cookies. Then learn approaches to storing multiple values in a single cookie using name-value pairs called subkeys. Next, learn how to limit the scope of cookies to a particular application domain or folder. See how to modify values and expiration dates in existing cookies and how to delete an existing cookie. In addition, several co...

How To: Create a custom user control in ASP.Net

In this video tutorial, Chris Pels will demonstrate how to create a custom user control in ASP.NET that can be used throughout a web site or across many web sites. Start out by learning the basics of creating a user control that will be used in multiple pages including validation, controlling formatting using style elements, and loading/saving data for the user interface elements. Throughout the video considerations for building user controls that can be easily maintained and used across mult...

How To: Implement tracing in an ASP.Net website

In this video tutorial, Chris Pels will show you how to implement tracing in an ASP.NET web site to monitor or measure the performance and to diagnose errors. Learn how to add tracing to an entire web site as well as individual pages. See how to add custom trace messages in pages and business objects to aid in assessing site performance and in diagnosing errors. Learn the differences between tracing in an ASP.NET page and in using System.Diagnostics.Trace for tracing information in business o...

How To: Save and load view state info for a custom web server

In this video tutorial, Chris Pels will show how to persist and restore information in the ViewState of a custom user control. First, learn how to persist simple values containing .NET primitive types such as String, Int32, Boolean, etc. Then see how to persist complex types such as Class which contain properties storing information. The sequence of processing View State information during the lifecycle of an ASP.NET page is also discussed.

How To: Declaratively and programmatically use master pages

In this video tutorial, Chris Pels will show several aspects of defining and using master pages in an ASP.NET web site. First, see how to create master pages declaratively using the ASP.NET master page model and learn what information is best suited to a master page compared to an individual content page. Next, see how to programmatically assign master pages on-the-fly in an individual content page. Also learn how to create a base page class which assigns a master page programmatically for al...

How To: Handle events in master and content pages on ASP.Net

In this video tutorial, Chris Pels will show how events are handled in master and individual content pages. Even though the end result of a master and individual content page is a single ASP.NET page rendered in the user's browser the event handling in each type of page is handled separately. If a control is located in the master page the corresponding event handler is located in the master page by default. The same is true for controls in the content page. See two approaches to having the ev...

How To: Create and use application level events in ASP.Net

In this video tutorial, Chris Pels will show how to create an Application Class File (Global.asax) that contains application level event handlers such as Application_Start and Application_BeginRequest. Then the sequence of application level events in the application lifecycle will be discussed as a basis for determining where certain types of operations would be best performed during the application lifecycle.

How To: Use the ObjectDataSource for ASP.Net

In this ASP.Net video tutorial, Chris Pels will show how to use the ObjectDataSource as the intermediate layer between data bound user interface elements and a custom data access class for a business object. Uses of the ObjectDataSource in the GUI Design mode and declaratively in the source view of an .aspx page are discussed. In addition, the considerations for design of the data access class and business object for use with the ObjectDataSource are covered. Use the ObjectDataSource for ASP....

How To: Share data between client JavaScript and server code

In this video tutorial, Chris Pels will show how to share data in between JavaScript and server-side code by using a hidden field in an ASP.NET page. Next, learn how to use the RegisterHiddenField method in server-side code to programmatically create a hidden field on the client. In addition, see how to programmatically create a HiddenField server control for sharing data on an ASP.NET page. Finally, use the RegisterArrayDeclaration method to create a container in server code for storing mult...

How To: Use a custom config section in an ASP.Net config file

In this video tutorial, Chris Pels will show how to extend the standard set of ASP.NET configuration settings with your own XML configuration elements. First, see how to create a configuration section handler which is required to interpret and process the information in custom XML configuration elements. During this learn how to use declarative model for defining the behavior of a configuration section handler. Next, see how to add a custom section handler and custom elements to an ASP.NET co...

How To: Configure an ASP.Net site for a .Net Framework version

In this video tutorial, Chris Pels will show how to configure an ASP.NET web site to use a specific version of ASP.NET/.NET Framework. First see how to identify what version of the .NET Framework a web site is associated with by viewing the script map in Internet Information Server (IIS). See how a script map is associated with the root in IIS and then with individual web sites. Next learn about the ASP.NET IIS Registration tool (aspnet_regiis.exe) used to configure IIS or an ASP.NET web site...

How To: Map an ASP.Net server control to the render adapter

In this video tutorial, Chris Pels will show how to use a control adaptor to provide different renderings for an ASP.NET server control without actually changing the control itself. In this video, an ASP.NET BulletList control will be adapted to display each list item horizontally using div elements instead of the traditional ul elements. First, see how to create a class that inherits WebControlAdaptor and then implements the code to render the new list format. Next, learn how to map the new ...

How To: Extend and customize an ASP.Net server control

In this video tutorial, Chris Pels will show how to extend a standard ASP.NET server control and customize it for a specific purpose. Specialized controls provide an convenient way to implement standardized user interface elements for multiple web sites for individuals or teams of developers. In this example, see how to extend the DropDownList control to create a special purpose year selection control. Learn how to add properties for custom attributes that control the behavior of the range of...

How To: Create groups with listview control for different data

In this video tutorial, Chris Pels will show how to group items when displaying data in a ListView control. First, see the basics of item layout in the ListView control with the LayoutTemplate and the ItemTemplate. Then, learn how the GroupTemplate relates to the LayoutTemplate and ItemTemplate within a ListView to establish a group of data. See how to use floating DIV elements to create a flexible tabular layout since any of the templates used with the ListView can contain any HTML. This pro...

How To: Make HTML elements accessible from server side code

In this video tutorial, Chris Pels will show how to make standard HTML elements in an .aspx page accessible from server side code so they can be used in page processing like a standard ASP.NET server control. First, see how the addition of a runat=”server” attribute to a standard HTML control like a div allows it to be referenced in server side code with full Intellisense. Next, see several examples of how you might manipulate HTML elements on a page with this technique. Lastly, see how this ...

How To: Create standard content layouts by nested master pages

In this ASP.Net video tutorial, Chris Pels will show how to use nested master pages to create individual master pages that represent different standard content layouts for a web site. First, see how several major commercial web sites use a standard set of content layouts. Next, see how to nest a master page within another master page, and use the design time support in Visual Studio 2008. Then, learn the considerations for establishing a “page architecture” which represents the major types of...

How To: Detect browser capabilities in ASP.Net web pages

In this video tutorial, Chris Pels will show how to determine what capabilities a user’s browser has when viewing pages in an ASP.NET web site. First, learn how to access an instance of the HttpBrowserCapabilities object from the ASP.NET Request object associated with the web page request. Next, see the different information available in the HttpBrowserCapabilities object such as the type of browser and whether the user’s browser supports JavaScript and Cookies. Then see an example of how to ...

How To: Pass info from one page to another with a query string

In this video tutorial, Chris Pels will show how information can be passed from one page to another using a query string. First, see how to construct a query string including variable names and values from information on a data entry form. Next, see how to access the query string information when the page is posted including how multiple query string variables are handled. As part of the server side processing of query string information, see how to implement validation for existence of query...

How To: Use the aspnet_merge.exe utility to merge assemblies

In this video tutorial, Chris Pels will show how to use the aspnet_merge.exe utility to combine assemblies that have been compiled using the aspnet_compiler.exe utility. First, view the output of the ASP.NET compilation process to learn what assemblies are created. Next, learn the mechanics of using the aspnet_merge.exe utility to merge assemblies from the compilation of a web site, first seeing how to control the compiled assembly names with the –prefix option. Then see how to merge all the ...

How To: Implement a cross page Postback in ASP.Net

In this video tutorial, Chris Pels shows how to create a Cross Page PostBack in ASP.NET, where a control on a source page raises a PostBack event to a different target page. First, learn how to configure a Button control to PostBack to a different target page. Then, learn how to get information from controls on the source page with the PreviousPage property and the FindControl method. Then, learn how to use public properties on the source page to expose data to the target page, and learn how ...