How to call client-side Javascript function after an UpdatePanel asychronous (Ajax) request is over
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If you are using AJAX then the only way i have found yet to give an alert to a user on return to the Asynchronous post back is to add an "end request" handler to the PageRequestManager. In this way you can tell the request manager to run a javascript function on returning from a Asynchronous post back event of AJAX. Code for doing this is : function load() { Sys.WebForms.PageRequestManager.getInstance().add_endRequest(EndRequestHandler); } where "EndRequestHandler" will be the name of your javascript function you want to call. Call the above function in Onload event of tag: function EndRequestHandler() { alert("You record has been saved successfully"); } Now If you want to give a different message based on your logic in server side code (code behind) then you can use a server side Hidden Field: Set its value in server side code on Asychronous Post Back: Protected Sub btn_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnCreateSample.Click If condition Then hdnValue.value = "do this" Else hdnValue.value = "do that" End If End Sub Now you can check the value of this Hidden Field in your Client Side EndRequestHandler function and give a different alert to user based on its value: function EndRequestHandler() { if (document.getElementById('<%= hdnValue.ClientID %>').value == "do this") { alert("You record has been saved successfully"); } else { alert("There is an error"); } } http://zeemalik.wordpress.com/
To do what can be done is a Intelligent Job and to do what should be done is a Genious Job done is a Genious Job
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If you are using AJAX then the only way i have found yet to give an alert to a user on return to the Asynchronous post back is to add an "end request" handler to the PageRequestManager. In this way you can tell the request manager to run a javascript function on returning from a Asynchronous post back event of AJAX. Code for doing this is : function load() { Sys.WebForms.PageRequestManager.getInstance().add_endRequest(EndRequestHandler); } where "EndRequestHandler" will be the name of your javascript function you want to call. Call the above function in Onload event of tag: function EndRequestHandler() { alert("You record has been saved successfully"); } Now If you want to give a different message based on your logic in server side code (code behind) then you can use a server side Hidden Field: Set its value in server side code on Asychronous Post Back: Protected Sub btn_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnCreateSample.Click If condition Then hdnValue.value = "do this" Else hdnValue.value = "do that" End If End Sub Now you can check the value of this Hidden Field in your Client Side EndRequestHandler function and give a different alert to user based on its value: function EndRequestHandler() { if (document.getElementById('<%= hdnValue.ClientID %>').value == "do this") { alert("You record has been saved successfully"); } else { alert("There is an error"); } } http://zeemalik.wordpress.com/
To do what can be done is a Intelligent Job and to do what should be done is a Genious Job done is a Genious Job
your post is ambiguous. Are you trying to ask or tell? If you are asking about how to call a javascript function after updating a update panel then use the scriptmanager e.g.
ScriptManager.RegisterStartupScript(idOfTheUpdatepanel, GetType(UpdatePanel), "scriptkey", javascriptFunctionOrScriptToBeCalled, True);-----