How to select blocks from within VB.NET?

[jholweg]

Hi all,

I'm trying to select blocks in an open drawing from within VB.NET. I use the following code fragment (myAcadDoc refers to the open document):

--------- START CODE FRAGMENT ---------------
Dim gpCode(1) As Integer, dataValue(1) As Object

gpCode(0) = 0 : dataValue(0) = "INSERT"
gpCode(1) = 2 : dataValue(1) = "BlockName"

ssTitleBlock = myAcadDoc.SelectionSets.Add("isAcadBatch&quot
ssTitleBlock.Select(acSelectionSetAll, , , gpCode, dataValue)
--------- END CODE FRAGMENT ---------------

This causes an exception to be generated. The problem is that the "dataValue" parameter should be of COM-type "vbVariant + vbArray". However, what is the equivalent .Net type??? Please help...

Best regards,

Jaap Holweg
mailto:J.Holweg@infostrait.nl

 

[DanLand]

not to sure but I can point you in the direction of an excellant site for Visual Basic and AutoCAD --> VBA Expresso

http://www.vbdesign.net

DanL

http://www.dczaland.com

 

[nmehta]

I'm having the same problem as well. I thought VB.NET will automatically wrap the object type to the appropriate datatype for the COM layer, but it's not working. Can you post a solution if you found one?

 

[nmehta]

Hey,

I finally got the answer to this one. The group code array needs to be declared an an array of shorts in order for the select statement to accept it on the COM side.

Dim gpCode(1) As Short;

Thanks,
Nutan