Convert List of Strings to Array of Strings

[FarrenYoung]

I am trying to call a function on a .net object that takes an array of strings.

How can I convert my list of strings in Intent code to a .net object (array of strings) that I can use?

Here is my vba code (works fine):

Sub VBA_AddBlock()
    Dim attributes(2) As String
    attributes(0) = "1"
    attributes(1) = "2"
    attributes(2) = "3"

    Dim blk As AutoCADBlock
    Set blk = sheet.AutoCADBlocks.Add(blkDef, ptInsert, 0, 1, attributes, True)
End Sub

Here is my intent code (throws a parameter is incorrect error):

Dim mAttributes As List = {"1", "2", "3"}

tSheet.AutoCADBlocks.Add(tBlockDef, tInsertPoint, mRotation, mScale, mAttributes, mStatic?)

The mAttributes porition is the only issue I am having.  I can set that variable to NoValue and my block is added as expected which leads me to believe mAttributes just needs to be converted to the correct data type.

FWIW I can do this in .net by passing in the list to a parameter of my function like (ByVal mPrompts As Object).  I can pass that parameter directly to the Add function in .net so there is some conversion taking place when passing intent values to .net functions so I just need to figure that out so I can call the function inside intent on my .net object.

Thanks,

[AlexKorzun · Accepted solution]

Hi Farren,

Try the following:

Rule Example 
     Dim lst As List = {"1", "2", "3"}
     Dim len = Length(lst)
	 
     Dim arrType = System.Type.GetType("System.String")
     Dim arr = System.Array.CreateInstance( arrType, len)
     
     
     For i = 1 To len
          arr.SetValue( nth(i, lst), i-1)
     Next
     
     Return arr
End Rule

 the output is:

Intent >example
--> {"1", "2", "3"}
Intent >example.GetType()
--> <System.String[]>

 Thank you,

Alex Korzun
Principal Engineer
Inventor Engineer-to-Order

[FarrenYoung]

Hey Alex,

Very nice bit of code! Just what I needed.

Thanks!