display loading symbol in vb.net

Question

Hai  I have created one vb.net application.In that app i have pulled the data from asp.net through webservice. so I call the web service method when the user click the save button.But it take long time to retrieve the data. so now I want to display some loading symbol or image until the data is retrieved. How I can do that?

Lalit M · Answer

Add the following JavaScript Code to your aspx page text/javascript language= javascript > function pageLoad(sender args) { var sm = Sys.WebForms.PageRequestManager.getInstance(); if (!sm.get_isInAsyncPostBack()) { sm.add_beginRequest(onBeginRequest); sm.add_endRequest(onRequestDone); } } function onBeginRequest(sender args) { var send = args.get_postBackElement().value; if (displayWait(send) == yes ) { $find( 'PleaseWaitPopup' ).show(); } } function onRequestDone() { $find( 'PleaseWaitPopup' ).hide(); } function displayWait(send) { switch (send) { case Save : return ( yes ); break ; case Save and Close : return ( yes ); break ; default : return ( no ); break ; } } reference link more info ----------- http://aspalliance.com/38_Javascript_Please_Wait_Message_Boxes.all http://blogs.crsw.com/mark/articles/642.aspx