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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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validation - An ASP.NET MVC validator to make sure at least one checkbox is checked -

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i have asp.net mvc 2 project in i've created data transfer object receive data web page form. form has 2 groups of checkboxes on it. want validate object make sure @ least 1 of checkboxes in each group checked.

i'm doing validation on server side user won't able hack around client-side validation. (i add client-side validation jquery later; that's easy.)

my understanding have create own custom validationattribute data transfer object class, don't understand how create , use 1 can accept arbitrary list of checkbox properties make sure @ least 1 of them true. guessing have call attributes this:

[atleastonecheckbox("set1check1", "set1check2", "set1check3",     errormessage = "you must check @ least 1 checkbox in set 1.")] [atleastonecheckbox("set2check1", "set2check2", "set2check3", "set2check4", "set2check5",     errormessage = "you must check @ least 1 checkbox in set 2.")] public class myformdto {     ... }

what implementation of atleastonecheckboxattribute like?

or there different way should kind of validation?

if have several checkbox groups, need deine attribute several times.

[attributeusage( attributetargets.class)] public class atleastonecheckboxattribute : validationattribute {     private string[] _checkboxnames;      public atleastonecheckboxattribute(params string[] checkboxnames)     {         _checkboxnames = checkboxnames;     }      protected override validationresult isvalid(object value, validationcontext validationcontext)     {         var propertyinfos = value.gettype().getproperties(bindingflags.public | bindingflags.instance)             .where(x=>_checkboxnames.contains(x.name));          var values = propertyinfos.select(x => x.getgetmethod().invoke(value, null));         if (values.any(x => convert.toboolean(x)))             return validationresult.success;         else         {             errormessage = "at least 1 checkbox must selected";             return new validationresult(errormessage);         }     } }

update

as have found out, class-level validation called after properties pass. in order error, just use empty string key.


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