WebGrid introduces a new concept in DataGrid paging that allow users to retrieve data when it is needed. The feature called 'VirtualLoad' enables true data "load on demand" mechanism which automatically retrieves data as users scroll forward. The new concept has replaced the old data paging mechanism in web applications that use navigation bar which is less effective since users need to refresh page in order to get more data and become unfeasible when data grows larger as business growth.

The implementation of the new paging concept - VirtualLoad - provides an effective approach for users as more data will retrieved from server transparently. WebGrid will initially loads a number of rows specified in VirtualPageSize. This results in faster page rendering to client, less bandwith taken and reduced server's workload. Integrated with Intersoft® WebCommonControl architecture that allows data to be retrieved without page postback has fully supported the feature to work perfectly in web-based environment. The combination of the VirtualLoad feature and WebCommonControl architecture resulting in a major performance improvement since the architecture uses its own ViewState implementation that only send required information to server and only pass back the UI elements that need to be rendered.

The key design of the feature is to enable a fast, effective and efficient data presentation when work in large DataSource's web applications. Developers are recommended to turn on VirtualLoad paging mode most of the times.

System.Object
   System.ValueType
      System.Enum
         ISNet.WebUI.WebGrid.PagingMode

Target Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, Windows Vista, Windows Server 2008 family

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