topic How to delete objects in an array in Inventor Programming Forum

How to delete objects in an array

Anonymous — Tue, 08 Jan 2013 22:14:35 GMT

Hello,

Im making an array of all the sketchedsymboldefinitions in a drawing that are not used in the drawing as a sketchedsymbol

My problem is that i do not understand how to delete all the objects i have in my array at the end of the code

Dim oDoc As Drawingdocument = ThisDoc.Document
Dim oSkSymDefs As SketchedSymbolDefinitions = oDoc.SketchedsymbolDefinitions
Dim oSkSymDef As SketchedSymbolDefinition
Dim oSheets As Sheets = oDoc.Sheets
Dim oSheet As Sheet
Dim oSkSymb As SketchedSymbol
Dim MyArrayList As New ArrayList

'checking each definition for occurence in the drawing
For Each oSkSymDef In oSkSymDefs

'checking each sheet
For Each oSheet In oSheets

Dim oSkSymbs As SketchedSymbols = oSheet.SketchedSymbols

'checking each sketched symbol per sheet
For Each oSkSymb In oSkSymbs

'If the sketchname is found and not previously found then add to array
If oSkSymDef.Name = oSkSymb.Name And Not MyArrayList.Contains(oSkSymDef) Then
MyArrayList.Add(oSkSymDef)
End If
Next
Next
Next

So I got my array with all the objects to be deleted. But how to delete???

I also believe this code could be a bit more effecient.

So if anyone can help im very grateful

Thx in advance,

Arnold

Re: How to delete objects in an array

Curtis_W — Tue, 08 Jan 2013 22:38:40 GMT

Hi Arnold82,

I think this will have some answers:

http://www.dotnetperls.com/arraylist-vbnet

I hope this helps.
Best of luck to you in all of your Inventor pursuits,
Curtis
http://inventortrenches.blogspot.com

Re: How to delete objects in an array

Anonymous — Sat, 12 Jan 2013 17:19:04 GMT

Thanks for the reply,

And here is the code that purges all unneccesary sketch symbols:

Dim oDoc As Drawingdocument = ThisDoc.Document
Dim oSkSymDefs As SketchedSymbolDefinitions = oDoc.SketchedsymbolDefinitions
Dim oSkSymDef As SketchedSymbolDefinition
Dim oSheets As Sheets = oDoc.Sheets
Dim oSheet As Sheet
Dim oSkSymb As SketchedSymbol
Dim MyArrayList As New ArrayList

For Each oSkSymDef In oSkSymDefs

For Each oSheet In oSheets

Dim oSkSymbs As SketchedSymbols = oSheet.SketchedSymbols

For Each oSkSymb In oSkSymbs

If oSkSymDef.Name = oSkSymb.Name And Not MyArrayList.Contains(oSkSymDef.Name) Then
MyArrayList.Add(oSkSymDef.Name)
End If
Next
Next
If MyArrayList.contains(oSkSymDef.Name) = False Then
oSkSymDef.Delete
End If
Next

Re: How to delete objects in an array

Ralf_Krieg — Sun, 13 Jan 2013 20:33:14 GMT

Don't know why you collect all Symbols in an array, but each SketchedSymbolDefinition has a property "IsReferenced".

From Help

Property that specifies if the sketched symbol definition is being referenced or not. A sketched symbol definition is referenced when an instance of the definition has been placed. A referenced sketched symbol definition cannot be deleted.

So you only have to step through the SketchedSymbolDefinitions, check the IsReferenced-Property and delete all unreferenced SketchedSymbolDifinitions.

Re: How to delete objects in an array

Anonymous — Tue, 15 Jan 2013 11:06:39 GMT

I did that because I had no idea (but it was good exercise)

Thx for the tip. This truly is much better

Dim oDoc As Drawingdocument = ThisDoc.Document
Dim oSkSymDefs As SketchedSymbolDefinitions = oDoc.SketchedsymbolDefinitions
Dim oSkSymDef As SketchedSymbolDefinition

For Each oSkSymDef In oSkSymDefs
    If oSkSymDef.IsReferenced = False Then
        oSkSymDef.Delete
    End If
Next