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c# - Usage of Server Side Controls in MVC Frame work -

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i using asp.net 4.0 , mvc 2.0 web application. project requiremrnt have use server side control in application not possibl in noraml case. ideally want use adrotator control , datalist control. i saw few samples , references in codepleax mvc controllib howwver found less useful. can tell how utilize theese controls in asp.net application along mvc. note: please provide functionalities related adrotator , datalist controls not equivalent functionalities thanks in advace. mvc pages not use normal .net solution makes use of normal .net components impossible. a normal .net page use event driven solution call different methods service side mvc use actions , view completly different way handle things. also, mvc not use viewstate normal .net controlls require. found article discussing mixing of normal .net , mvc.
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c# 3.0 - About casting and objects -

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it's simple, want explanation this:

internal class b { // base class } internal class d : b { // derived class }

in other class wrote:

b b3 = new object(); //compilation time error!

why??? suposse classes inherit "object"

b more specialized object, therefore cannot assign object instance b reference. because not every object b - opposite true.

let's assume have field x in class b. when instantiate object, no memory reserved field, , if assign reference of type b, therefore try read or write unallocated memory, not allowed (or useful).


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