A.4 Visual Basic Datatype Conversion

Like C#, Visual Basic is a typed language. C# and Visual Basic have a lot in common, but there are many differences as well. The Flash gateway on the server takes care of the datatype conversions back and forth between the Flash client and the ASP.NET server.

Table A-7 shows the conversion from Flash ActionScript to Visual Basic.

Table A-7. Flash-to-Visual Basic datatype conversion

Flash (ActionScript)

Visual Basic

ActionScript object

flashgateway.IO.ASObject (implements java.util.map)

Array (indexed)

System.Collections.ArrayList

Array (associative)

System.Collections.HashMap

Boolean

Boolean

Date object

Date

Number

any numeric type

RecordSet

-

String

System.String

Undefined

Nothing

XML Object

System.Xml.XmlDocument

Null

Nothing

Table A-8 shows the conversion from Visual Basic to Flash ActionScript.

Table A-8. Visual Basic-to-Flash datatype conversions

Visual Basic

Flash (ActionScript)

FlashGateway.IO.ASObject

ActionScript object

FlashGateway.IO.ASObject with type property set

ActionScript object of that type

System.Collections.ICollection, object[]

Array (indexed)

System.Collections.HashTable, System.Collections.IDictionary

Array (associative)

Boolean

Boolean

Date

Date object

Number

Number

System.Data.DataSet

Array of RecordSets

System.Data.DataTable

RecordSet

System.String, System.Char

String

System.Xml.XmlDocument

XML object

Nothing

Null



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