Question 381. Default Value Of Enablehistory Attribute In Scriptmanager Is,
<asp :script manager id = "script Manager1" runat = "server" async = "" postback = "" error = "" message = "We can not serve your request at this moment.Please try later." asyncpost back timeout = "36000" > < /asp :script manager > The default value of this property is 90 second. We can also set the user defined error message using asyncpostbackerrormessage property (as shown in above code) for time out.