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HOW TO GET HOLD TO DRAWING SYMBOLS

avijayan-2
12-Amethyst

HOW TO GET HOLD TO DRAWING SYMBOLS

Hi Everyone,

I tried the below code to delete a particular group of symbols from my drawing but i am getting some error while executing the step. Error is attached with this discussion.

i tried many different loops but i am not able get hold of the symbol instances. I am not able to understand where exactly i am making the mistake.

Please suggest me a method to solve this issue.

Public Sub DeleteSymbolInstance(ByRef session As IpfcSession,
                                   ByVal symbolname As String, ByVal instancename As String)

      

Dim model As IpfcModel
        Dim drawing As IpfcModel2D
        Dim symInstructions As IpfcDetailSymbolInstItem
        Dim symItem As IpfcDetailSymbolInstItem

        Try
            model = session.CurrentModel
            If model Is Nothing Then
                Throw New Exception("Model not present")
            End If
            If Not model.Type = EpfcModelType.EpfcMDL_DRAWING Then
                Throw New Exception("Model is not drawing")
            End If
            drawing = CType(model, IpfcDrawing)

            Dim symbol As IpfcDetailSymbolDefItem = drawing.RetrieveSymbolDefinition(symbolname, Nothing, Nothing, False)
           

            symInstructions = symbol.ListDetailItems(EpfcDetailType.EpfcDETAIL_SYM_INSTANCE)
            symInstructions = symbol.GetInstructions()
            symInstructions.TextValues = instancename
            symItem = drawing.GetDetailItem(symInstructions)
            symItem.Remove()

        Catch ex As Exception
            MsgBox(ex.Message.ToString + Chr(13) + ex.StackTrace.ToString)
        End Try

End Sub

With Regards

Aghil.M

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