CallbackPanel Class

The same content in Microsoft HTML help file format is included in the download package.

CallbackPanel Class

CallbackPanel control delivers capability to update any ASP.NET controls inside the CallbackPanel through AJAX (Asynchronous JavaScript and XML)without refreshing the entire page. With CallbackPanel, complex content can be updated from server "in live" and end user has a better experience.

For a list of all members of this type, see CallbackPanel Members.

System.Object
   System.Web.UI.Control
      System.Web.UI.WebControls.WebControl
         EO.Web.WebControlBase
            EO.Web.CallbackPanel

[Visual Basic]
Public Class CallbackPanel

Inherits WebControlBase

[C#]

public class CallbackPanel : WebControlBase

Thread Safety

Public static (Shared in Visual Basic) members of this type are safe for multithreaded operations. Instance members are not guaranteed to be thread-safe.

Remarks

CallbackPanel is extremely useful when only part of the page needs to change during a postback. Partial updates can be less disruptive to the user, reduce screen flicker, and may allow you to create more interactive Web applications, by performing postbacks more frequently than is possible if the entire page needs to be refreshed for each postback.

When CallbackPanel control is used to refresh part of the page, simply add the controls that need to be updated into the CallbackPanel. Then you can update those controls in CallbackPanel's execute event handler.

Note Use Callback control if you do not intent to update any controls on page during partial postback.

Requirements

Namespace: EO.Web

Assembly: EO.Web (in EO.Web.dll)