vb.net - VB10, Auto-Implemented Properties and COM -


i finished class we're using tie access wcf services. of course means .net classes (and of properties) need visible com. given i'm using vb10 , contact class has 20 properties went ahead , used auto-implementing properties.

much surprise, properties not accessible within vba in access. tried marking properties comvisible (which didn't have in past standard properties) , still didn't work. after changing auto properties standard properties worked.

public property firstname string

became

public property firstname string             return _strfirstname     end     set         _strfirstname = value     end set end property

my understanding 2 should equivalent. according i've read on msdn, auto-implementing properties take care of creating backing field , getter / setter , intents , purposes should same.

clearly they're not, else going on behind scenes?

they are. sample code:

<comvisible(true)> _ <classinterface(classinterfacetype.autodual)> _ public class class1     private prop boolean     public property boolprop() boolean                     return prop         end         set(byval value boolean)             prop = value         end set     end property      public property boolprop2() boolean end class

with commands:

tlbexp classlibrary1.dll
oleview classlibrary2.tlb

produces interface dump:

interface _class1 : idispatch {     [id(00000000), propget,       custom(54fc8f55-38de-4703-9c4e-250351302b1c, 1)]     hresult tostring([out, retval] bstr* pretval);     [id(0x60020001)]     hresult equals(                     [in] variant obj,                      [out, retval] variant_bool* pretval);     [id(0x60020002)]     hresult gethashcode([out, retval] long* pretval);     [id(0x60020003)]     hresult gettype([out, retval] _type** pretval);     [id(0x60020004), propget]     hresult boolprop([out, retval] variant_bool* pretval);     [id(0x60020004), propput]     hresult boolprop([in] variant_bool pretval);     [id(0x60020006), propget]     hresult boolprop2([out, retval] variant_bool* pretval);     [id(0x60020006), propput]     hresult boolprop2([in] variant_bool pretval); };

it's there. doing wrong, no idea what.


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