For the older UltraWebGrid, we were able to use grid.IsXmlHttpRequest to differentiate between the grid's AJAX postback vs a full page postback, where the AJAX postback was initiated by grid.invokeXmlHttpRequest(...).
In the new WebDataGrid, is there a way to differentiate between a full page postback vs the AJAX postback of the grid, say in the grid Load event handler? I want to perform different actions depending upon how the grid is posted back.
I'm using the following Javascript perform an AJAX postback on a WebDataGrid to retrieve data from a database.
var grid = $find("WebDataGrid1"); var callbackObject = grid._callbackManager.createCallbackObject(); grid._callbackManager.execute(callbackObject);
Hello yen,
You can check if a post back is asynchronous through the page’s ScriptManager. The ScriptManager has a property called IsInSyncPostBack that indicates whether the current postback is async. If the postback is being done asynchronously IsInAsyncPostBack would be set to true. You can find further information about this property in the following link:
http://msdn.microsoft.com/en-us/library/system.web.ui.scriptmanager.isinasyncpostback.aspx
Please let me know if you have any questions concerning this matter.
Mike,
Thanks for the quick response.
IsInAsyncPostBack is FALSE for both the Call Back Manager AJAX postback (above) and grid paging AJAX postback.
The only instance where I can get the IsInAsyncPostBack to be true is if I enclose the grid in an Update Panel and post it back (partial postback).
Is there anything else that I can use?
Regards,
Yen