CODEWITHSUNDEEP
asp-classic
McTrafik
McTrafik

Reputation: 2938

cannot make ASP.NET call from ASP return a String[] that's usable

I definitely searched for this, but I can't find the answer, even though it seems so trivial.

I have a variable in ASP.NET that returns a string.

string[] arrayOfThings { get { return new string[] { ... } } }

And I have call to it in ASP

Dim someString
For Each someString In someClass.arrayOfThings
    # Do Something with someString
Next

This does not work. It returns a 'Type Mismatch' Exception.

When I try to debug, IsArray(someClass.arrayOfThings) returns True, but it has no Count, no attributes, nothing. UBound(someClass.arrayOfThings) is 0, which is what I would expect since it only has 1 element in it. However, I'm unable to reference the element by someClass.arrayOfThings(0)

I'm new to ASP, but I can't figure out what I'm doing wrong. I so wish ASP was strongly typed.

Edit: I tried creating an Array with the same value, and compare it to what I get from arrayOfThings, and in the debugger window they look identical, but in one case I can loop through it and in the other, I cannot.

Just FYI, currently I have it working like this:

I have a variable in ASP.NET that returns a string.

string arrayOfThings { get { return String.Join(",", new string[] { ... }) } }

And then in ASP

Dim someString
For Each someString In Split(someClass.arrayOfThings, ",")
    # Do Something with someString
Next

And this works.

Upvotes: 0

Views: 201

Answers (1)

AnthonyWJones
AnthonyWJones

Reputation: 189505

Use this approach instead:-

 object[] arrayOfThings { get { return new object[] { ... } } }

The problem with using a string array is that it marshals as a SAFEARRAY of BSTR in COM speak. However VBScript can only cope with SAFEARRAY of VARIANT. Using object should result in an array of Variant.

Upvotes: 1

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