Execute method from string

[jk1121]

Is there a way (I'm guessing thru IUnknown or IDispatch) to execute a method
based on the contents of a string variable? For example, I pass a string
to a sub or function that contains the class to call (DLL.clsExample), and
another string that contains the method I want to call (GetInformation).
I know I can instantiate the object by doing a CreateObject on the class
string, but how can I call the method that I passed in the other string variable?
Thanks for any help.

[Colin McGuigan]

"jk1121" <jk1121@aol.com> wrote in message news:3b66e44b$1@news.devx.com...
>
> Is there a way (I'm guessing thru IUnknown or IDispatch) to execute a
method
> based on the contents of a string variable? For example, I pass a string
> to a sub or function that contains the class to call (DLL.clsExample), and
> another string that contains the method I want to call (GetInformation).
> I know I can instantiate the object by doing a CreateObject on the class
> string, but how can I call the method that I passed in the other string
variable?
> Thanks for any help.

In VB6, you can use CallByName.

Eg,

Dim obj As Object
Dim varResult As Variant

Set obj = CreateObject("MyProject.MyClass")
CallByName obj, "MyProcedure", vbMethod, Arg1, Arg2
varResult = CallByName(obj, "MyFunction", vbMethod, Arg1)

--
Colin McGuigan

[jk1121]

Thanks Colin, works perfect!

I can't believe I've been doing this for 3 yrs and never heard of CallByName...

"Colin McGuigan" <cmcguigan@imany.com> wrote:
>
>"jk1121" <jk1121@aol.com> wrote in message news:3b66e44b$1@news.devx.com...
>>
>> Is there a way (I'm guessing thru IUnknown or IDispatch) to execute a
>method
>> based on the contents of a string variable? For example, I pass a string
>> to a sub or function that contains the class to call (DLL.clsExample),
and
>> another string that contains the method I want to call (GetInformation).
>> I know I can instantiate the object by doing a CreateObject on the class
>> string, but how can I call the method that I passed in the other string
>variable?
>> Thanks for any help.
>
>In VB6, you can use CallByName.
>
>Eg,
>
>Dim obj As Object
>Dim varResult As Variant
>
>Set obj = CreateObject("MyProject.MyClass")
>CallByName obj, "MyProcedure", vbMethod, Arg1, Arg2
>varResult = CallByName(obj, "MyFunction", vbMethod, Arg1)
>
>--
>Colin McGuigan
>
>