I have following class:-
public class Requirements { public string EventMessageUId { get; set; } public string ProjectId { get; set; }
This might do the trick for you
objRequirement.GetType().GetProperties() .Where(pi => pi.GetValue(objRequirement) is string) .Select(pi => (string) pi.GetValue(objRequirement)) .Any(value => String.IsNullOrEmpty(value));