PowerWEB LiveControls for ASP.NET

What’s new in V1.6x?

• Internal LiveControls internal processes have been optimized for this release, dramatically improving performance and reducing memory consumption under extreme load
• Added the Configuration.AppSettings key "Dart.PowerWEB.LiveControls.DisableExceptionHandling" to globally prevent LiveControls from using custom exception handlers
• Refresh() method added to LiveControls which provides a method to force re-rendering of an element's HTML contents when targeted updates are not possible

What's new in V1.x?

• ViewStateCache mechanism has been added to greatly reduce bandwidth and to improve rendering performance, most notably in applications with complex or numerous controls
• Callback ordering is now improved, even when issued in high volume, and rapid succession
• Response.Redirect and Server.Transfer are recognized and handled within a LiveControls callback
• Various fixes and improvements

Features:

• The ability to manipulate non-LiveControls in Code-Behind and have them updated on the client without a refresh (this is not guaranteed to work with all 3rd party controls)
• Addition of Windows-like mouse, key, and click events to visual LiveControls
• No need for Java applets, Flash, or complex JavaScript
• Will automatically fallback to standard ASP.NET postbacks when unsupported browser detected
• Compatible with IE 5.0 +, IE 5 Mac, Mozilla 1.3+, Mozilla 1.3+ Mac, Galeon, Konqueror and Opera 5
• The ability of controls to operate in blocking or non-blocking manner on the client
• A LiveTimer that is capable of polling the server at a specified interval
• Limits the amount of data sent round-trip to maximize performance
• A LiveCallback control that easily enables "Remote Scripting" implementations
• Compatible with all versions of the .NET Framework

LiveControls for ASP.NET includes the following server controls:

• LiveButton - Use the LiveButton control to create a push button on the Web page. You can create either a submit button or a command button
• LiveCallback - Use the LiveCallback to create custom callbacks into code-behind
• LiveCheckBox - Use the LiveCheckBox control to allow the user to select a true or false state
• LiveCheckBoxList - The LiveCheckBoxList control provides a multi selection check box group that can be dynamically generated with data binding. It contains an Items collection with members corresponding to individual items in the list
• LiveDataGrid - Use the LiveDataGrid control to display the fields of a data source as columns in a table dynamically. Each row in the LiveDataGrid control represents a record in the data source. The LiveDataGrid control supports selection, editing, deleting, paging, and sorting
• LiveDropDownList - Use the LiveDropDownList control to create a single selection drop-down list control
• LiveHyperlink - Use the LiveHyperLink control to create a link to another Web page
• LiveImage - Use the LiveImage control to display an image on the Web page
• LiveImageButton - Use the LiveImageButton control to display an image that responds to mouse clicks
• LiveLabel - Use the LiveLabel control to display text in a set location on the page
• LiveLinkButton - Use the LiveLinkButton control to create a hyperlink style button on the Web page
• LiveListBox - Use the LiveListBox control to create a list control that allows single or multiple item selection
• LiveMessageBox - Use LiveMessageBox to inform the user, ask the user for confirmation, or prompt the user for information
• LivePanel - Use the LivePanel control as a container for other controls
• LivePlaceHolder - Use the LivePlaceHolder control as a container to store dynamically added server controls to the Web page. The LivePlaceHolder control does not produce any visible output and is only used as a container for other controls on the Web page
• LiveRadioButton - The LiveRadioButton server control permits you to intersperse the radio buttons in a group with other content in the page
• LiveRadioButtonList - The LiveRadioButtonList control provides page developers with a single-selection radio button group that can be dynamically generated through data binding
• LiveSound - Use LiveSound to play a sound file client-side during a callback
• LiveTextBox - Use LiveTextBox to display a text box control for user input
• LiveTimer - Use LiveTimer to raise an event at user-defined intervals, enabling server polling

LiveControls for ASP.NET includes the following sample applications demonstrating use of the above controls:

• LiveAuction - Demonstrates using LiveControls to update an imaginary auction for a guitar in real-time
• LiveProgress - Demonstrates using LiveControls to the update a progress bar based on information from the server
• LiveComparison - Compares the difference between using LiveControls and standard Microsoft controls
• LiveShoppingCart - Demonstrates a shopping cart that can be updated with real-time server price information as options are chosen without a postback
• LiveSlideShow - Demonstrates a slideshow that is driven by server-side image URLs
• LiveTutorial - Demonstrates how the PowerWEB LiveControls for ASP.NET can be used and explains the technology
• LiveStockQuote - Demonstrates a stock quote application that updates stock prices and news without a refresh