Comments on: useful IIf for Visual Basic 2005 http://journal.nullschool.net/2005/06/08/useful-iif-for-visual-basic-2005/ Cameron Beccario's Journal Tue, 06 Jan 2009 10:41:07 +0000 http://wordpress.org/?v=2.5.1 By: Cameron Beccario http://journal.nullschool.net/2005/06/08/useful-iif-for-visual-basic-2005/#comment-14 Cameron Beccario Fri, 17 Jun 2005 06:26:13 +0000 http://ben.asmallorange.com/~cambecc/journal/2005/06/08/useful-iif-for-visual-basic-2005/#comment-14 Actually, through a feature called "type inferencing", you don't need to specify the type parameters of a generic function. The Visual Basic compiler will determine/infer the correct set of type parameters based on the types of the arguments you call the function with. In the example above, it will infer the type Integer because 10 and 20 are Integer literals. Don't worry, if it can't figure it out, the compiler will give you an error. It won't do anything surprising/unintuitive. See also this <a href="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnvs05/html/vb2005_generics.asp ">excellent paper</a> on VB generics written by my friend and former coworker Harish Kantamneni. Actually, through a feature called “type inferencing”, you don’t need to specify the type parameters of a generic function. The Visual Basic compiler will determine/infer the correct set of type parameters based on the types of the arguments you call the function with. In the example above, it will infer the type Integer because 10 and 20 are Integer literals. Don’t worry, if it can’t figure it out, the compiler will give you an error. It won’t do anything surprising/unintuitive.

See also this excellent paper on VB generics written by my friend and former coworker Harish Kantamneni.

]]> By: Anand http://journal.nullschool.net/2005/06/08/useful-iif-for-visual-basic-2005/#comment-13 Anand Thu, 16 Jun 2005 12:04:16 +0000 http://ben.asmallorange.com/~cambecc/journal/2005/06/08/useful-iif-for-visual-basic-2005/#comment-13 Dont you have to do something like IIf(Integer)(SomeCondition(), 10, 20), to pick the correct type?? Dont you have to do something like IIf(Integer)(SomeCondition(), 10, 20), to pick the correct type??

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