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Hide and Show All Edges in Drawing View (VB.NET)

This example shows how to hide and then show all of the edges in the root component in a drawing view.

' Preconditions:
' 1. Verify that the drawing document to open exists.
' 2. Open the Immediate window.
' Postconditions:
' 1. Opens the specified drawing document.
' 2. Hides and then shows all edges in the root component in
'    Drawing View1
' 3. Examine the drawing and Immediate window.
Imports SolidWorks.Interop.sldworks
Imports SolidWorks.Interop.swconst
Imports System.Runtime.InteropServices
Imports System
Imports System.Diagnostics

Partial Class SolidWorksMacro

Dim swModel As ModelDoc2
Dim swDraw As DrawingDoc
Dim swDocSpecification As DocumentSpecification
Dim swSheet As Sheet
Dim swView As View
Dim swDrawingComponent As DrawingComponent
Dim swComponent As Component2
Dim swEntity As Entity
Dim vEdges As Object
    Dim bRet As Boolean
    Dim i As Integer

    Sub main()

' Specify the drawing to open
        swDocSpecification = swApp.GetOpenDocSpec("C:\Program Files\SOLIDWORKS Corp\SOLIDWORKS\samples\tutorial\advdrawings\foodprocessor.SLDDRW")
        swModel = swApp.ActiveDoc

If swModel Is Nothing Then
            swModel = swApp.OpenDoc7(swDocSpecification)
End If

        swModel = swApp.ActiveDoc
        swDraw = swModel

' Get the current sheet
        swSheet = swDraw.GetCurrentSheet

' Select Drawing View1
        bRet = swModel.Extension.SelectByID2("Drawing View1", "DRAWINGVIEW", 0.0#, 0.0#, 0.0#, True, 0, Nothing, swSelectOption_e.swSelectOptionDefault)
        swView = swModel.SelectionManager.GetSelectedObject6(1, -1)

' Print the drawing view name and get the component in the drawing view
        swDrawingComponent = swView.RootDrawingComponent
        swComponent = swDrawingComponent.Component

' Get the component's visible entities in the drawing view
        Dim eCount As Integer
        eCount = swView.GetVisibleEntityCount2(swComponent, swViewEntityType_e.swViewEntityType_Edge)
        vEdges = swView.GetVisibleEntities2(swComponent, swViewEntityType_e.swViewEntityType_Edge)
"Number of edges found: " & eCount)

' Hide all of the visible edges in the drawing view
        For i = 0 To eCount - 1
            swEntity = vEdges(i)
True, Nothing)
Next i

' Clear all selections

' Show all hidden edges
        swView.HiddenEdges = vEdges

End Sub

Public swApp As SldWorks

End Class


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