asp.net web api - Pass null String to Web API 2 (Visual Studio 2013) -


i have method this:

public ienumerable<test> gettest(int32 idtest, string codtest, int value)

and test client this:

client.defaultrequestheaders.accept.add(new mediatypewithqualityheadervalue("application/json")); response = await client.getasync("test/gettest/0/null/1/");

i need pass null in second parameter (that not optional), on server side string "null" inside , not null value. not put conversion functions each parameter. see works if put [frombody] attribute 1 parameter, if set [frombody] string parameters internal server error.

many thanks.

you typically shouldn't have optional parameters in middle of route.

i recommend changing order of parameters, or add them query parameters can optional.

e.g. http://example.com/test/gettest?a=0&b=&c=1

public ienumerable<string> gettest(int32 idtest) {     var querypairs = request.getquerynamevaluepairs();     dosomething(querypairs);     ... }

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