Check for empty
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anttam
Guest
Posted: Fri Apr 08, 2005 1:59 pm    Post subject: Check for empty Reply with quote
Q1. As I select a specific layer which is empty, how can I check
(1) the selection set, objSS is empty? Because objSS.count is unable to show the value.
(2) the layer is empty so that I will not perform the selection?

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Jürg Menzi
Guest
Posted: Fri Apr 08, 2005 3:32 pm    Post subject: Re: Check for empty Reply with quote
Hi anttam

Quote:
(1) the selection set, objSS is empty? Because objSS.count is unable to
show the value.
If you create a named selection set you've always a count property:

Code:

Public Function MeSelectionSet(SetNme As String) As AcadSelectionSet

  On Error Resume Next
 
  With ThisDrawing.SelectionSets
    Set MeSelectionSet = .Add(SetNme)
    If Err.Number <> 0 Then
      Err.Clear
      .Item(SetNme).Delete
      Set MeSelectionSet = .Add(SetNme)
    End If
  End With
 
End Function


Quote:
(2) the layer is empty so that I will not perform the selection?
Check GenerateUsageData method (A2k5+)


Cheers
--
Juerg Menzi
MENZI ENGINEERING GmbH, Switzerland
http://www.menziengineering.ch
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