generic return type based on a Type paramater in C# -

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i have class dictionary maps type keys objects implement interface iwhatever.

i wish create generic function gets type input , returns object mapped type in dictionary.

something : 

public t get<t>(type type)

where t instance of type , type implements iwhatever.

i don't want return object or iwhatever objects of given type. type of return objects can infered @ compile time. assume should possible.

i have managed in java:

public t get<t>(class<t extends iwhatever> type) { // implementation }

is there way achieve in c# ? if not, why not , alternatives suggest ?

i think want:

public t get<t>() t : iwhatever { ... }

for more information, see constraints on type parameters (c# programming guide).

this of course useful when client can provide type argument @ compile-time. internally, method may need lot of nastiness, e.g.:

return (t) mydict[typeof(t)];

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