I'm trying to obtain a list of all available data types
for a given assembly/namespace, i.e. the same list that
would be displayed by the intellisense when typing: "dim
str as " in a vb function.

I have tried the following code:

    Public Function GetAssemblysTypes(ByVal
vstrAssemblyPath As String, ByVal vstrNameSpace As String)
As Type()

        'Get the dll/exes assemby
        Dim objassembly As
System.Reflection.Assembly =
System.Reflection.Assembly.LoadFrom(vstrAssemblyPath)
        Dim objAssemblyName As
System.Reflection.AssemblyName
        'Dimension an array list to
        Dim arr As New ArrayList()
        Dim objType As Type
        Dim i As Integer

        objAssemblyName = objassembly.GetName

        'have we found the namespace?
        If objAssemblyName.Name = vstrNameSpace
Then
            'Write out the assembly's type info
            Return objassembly.GetTypes()
        End If

        'Get the referenced assemblies
        Dim objReferencedAssemblies() As
System.Reflection.AssemblyName =
objassembly.GetReferencedAssemblies()
        'Determine how many assemblies there are
        Dim intCount As Integer = UBound
(objReferencedAssemblies, 1)

        'Loop through each assembly
        For i = 0 To intCount - 1

            Try

                'Get the next assembly
                objAssemblyName =
objReferencedAssemblies(i)

                If vstrNameSpace =
objAssemblyName.Name Then

                    'Load the assembly
                    objassembly =
System.Reflection.Assembly.Load(objAssemblyName)
                    Return
objassembly.GetTypes
                End If

            Catch ex As Exception
                'MsgBox(ex.Message)
            End Try

        Next

    End Function

    Public Function GetAssemblysNamespaceList(ByVal
vstrAssemblyPath As String) As String()

        'Get the dll/exes assemby
        Dim objassembly As
System.Reflection.Assembly =
System.Reflection.Assembly.LoadFrom(vstrAssemblyPath)
        Dim objAssemblyName As
System.Reflection.AssemblyName

        'Dimension an array list to
        Dim arr(0) As String
        Dim objType As Type
        Dim i As Integer

        objAssemblyName = objassembly.GetName
        arr(0) = objAssemblyName.Name

        'Get the referenced assemblies
        Dim objReferencedAssemblies() As
System.Reflection.AssemblyName =
objassembly.GetReferencedAssemblies()

        'Determine how many assemblies there are
        Dim intCount As Integer = UBound
(objReferencedAssemblies, 1)

        ReDim Preserve arr(intCount)

        'Loop through each assembly
        For i = 1 To intCount - 1
            Try
                'Get the next assembly
                objAssemblyName =
objReferencedAssemblies(i)
                arr(i) =
objAssemblyName.Name
            Catch ex As Exception
                'MsgBox(ex.Message)
            End Try
        Next

        Return arr

    End Function
'*******************************************************
GetAssemblysNamespaceList retrieves a list of namespaces
for a given assembly (specified by path/filename).
GetAssemblysTypes retrieves the data types for a namespace
(i.e. System) in an assembly specified by path/filename.
So I use GetAssemblysNamespaceList to populate a combo and
GetAssemblysTypes to populate a grid.
The problems are:

1)The list is not the same as given when coding within the
function.
2) The types String, Int16, Int32, are not displayed in
the System namespace.
3) I am also getting an error trying to read a referenced
assembly, a dll which I have written, although an upto
date version is present exactly as referenced in the
Reference properties path.

Any help greatly appreciated.

Steve