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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# - Converting from an interface to an object that implements the interface? -

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i have interface implemented several different objects. trying write method in c# accept interface object parameter , convert parameter object implements don't have write same function several different types. such as:

class unappliedcashdetails implements interface itransactiondetail.

constructor issbatch: 

public issbatch(list<itransactiondetail> details)
  
public static issbatch getnextreceiptbatch() {      list<unappliedcashdetail> details = new list<unappliedcashdetail>();
  
    /`*`some code here populate list`*`/                  return = new issbatch(details); 
  
}

c# not this. trying use interface wrong or not casting correctly?

thanks!

you're passing list<unappliedcashdetail> constructor accepts list<itransactiondetail>. unappliedcashdetail may implement itransactiondetail, type of variance not supported c#. consider inside constructor (or other method) attempt add instance of someothertransactiondetail details list, except details list should really accept unappliedcashdetail, per declaration.

to make code work, need change declaration

list<itransactiondetail> details = new list<itransactiondetail>();       /* code here populate list */                   return new issbatch(details);

or change constructor accept ienumerable<itransactiondetail>, in case original list<unappliedcashdetail> declaration work. variance supported ienumerable<t> (note: c# 4), since sequence , cannot added to, deleted from, etc., there's no possibility of trying add appliedcashdetail instance sequence of unappliedcashdetail objects.


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