Determine if and which partial postback occurred in pageLoad() with JavaScript in .NET -

as understand it, partial page updates asp.net ajax cause javascript pageload() event handler invoked.

my question: there generic way of determining in javascript within pageload() function...

i) if postback partial page update or not.

ii) if so, panel updated.

my application uses combination of .net updatepanels & telerik radajaxpanels. i'm looking generic (preferably javascript) solution doesn't require me specify unique client-side callback function each panel, nor set flag within each postback event handler identify client-side.

to determine if postback partial update or not, can use scriptmanager.getcurrent(this.page).isinasyncpostback. here's example:

protected void page_load(object sender, eventargs e) {     if (page.ispostback)     {         // reference scriptmanager , check if have partial postback         if (scriptmanager.getcurrent(this.page).isinasyncpostback)         {             // partial (asynchronous) postback occured             // insert ajax custom logic here         }         else         {             // regular full page postback occured             // custom logic accordingly                         }     } } 

and update panel caused postback, can scriptmanager.getcurrent(page).uniqueid , analyze it. here's example of doing that:

public string getasyncpostbackcontrolid() {     string smuniqueid = scriptmanager.getcurrent(page).uniqueid;     string smfieldvalue = request.form[smuniqueid];      if (!string.isnullorempty(smfieldvalue) && smfieldvalue.contains("|"))     {         return smfieldvalue.split('|')[0];     }      return string.empty; } 

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references:

• http://forums.asp.net/t/1562871.aspx/1
• get asp.net control fired postback within ajax updatepanel