What Is The Role Of ScriptManager In Ajax?
ScriptManager class is the heart of
The ScriptManager class in ASP.NET manages Ajax Script Libraries, partial page rendering functionality and client proxy class generation for webapplications and services.
1)What is the use of DisplayAfter Property of UpdateProgress Control ASP.NET AJAX?
Ans:DisplayAfter property of UpdateProgress Control is used to set the time after the loading image is displayed once the Ajax request is sent.
2)Can We have nested Update Panels one inside another in ASP.NET AJAX?
Ans:Yes ! we can have one update panel inside another.
3)What is the use of Update Progress Control in ASP.NET AJAX?
Ans:Update Progress Control is mostly used to show loading image or message while async postback is going on.
4)what is meant by update mode conditional in ASP.NET UpdatePanel?
Ans:suppose There are two update panels on the page say Panel1 and Panel2.then if A button placed in Panel1 is clicked, Panel2 will also get updated.To stop this we should use Update Mode Conditional for both the Update panels.Also set ChildrenAs Triggers as true.
5)How many update panel we can have per page in ASP.NET?
Ans:As many as we want.There is no such limit.
6)What is prerequisite for Update Panel use?
Ans:Script Manager is prerequisite for Update Panel use.
7)What are the different controls provided in ASP.NET Ajax Framework 1.0?
Ans:a)Script Manager
b)Script Manager Proxy
c)Update Panel
d)Update Progress
e)Timer
8)Name the different types of readyStates in Ajax?
Ans:a)request not initialized
b)request set
c)request sent
d)request processing
e)request completed
9)Can we implement Ajax in browsers that do not support the XmlHttpRequest object?
Ans:Yes,remote scripts can be used for this purpose.
10)Name the browsers that support XmlHttpRequest object?
Ans:a)Internet Explorer 5.0+
b)Mozilla 1.0+/Firefox
c)Safari 1.2+
d)Opera 8.0 +
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