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Hide and Show All Edges in Drawing View (C#)

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 specified 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 View
// 3. Examine the drawing and Immediate window.

using Microsoft.VisualBasic;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Data;
using System.Diagnostics;
using SolidWorks.Interop.sldworks;
using SolidWorks.Interop.swconst;
using System.Runtime.InteropServices;
namespace HideShowEdges_CSharp.csproj
partial class SolidWorksMacro

ModelDoc2 swModel;
DrawingDoc swDraw;
DocumentSpecification swDocSpecification;
Sheet swSheet;
View swView;
DrawingComponent swDrawingComponent;
Component2 swComponent;
Entity swEntity;
object[] vEdges;
bool bRet;
int i;

public void Main()
// Specify the drawing to open
            swDocSpecification = (DocumentSpecification)swApp.GetOpenDocSpec("C:\\Program Files\\SOLIDWORKS Corp\\SOLIDWORKS\\samples\\tutorial\\advdrawings\\foodprocessor.SLDDRW");
            swModel = (

if (swModel == null)
                swModel = swApp.OpenDoc7(swDocSpecification);

            swModel = (
            swDraw = (

// Get the current sheet
            swSheet = (Sheet)swDraw.GetCurrentSheet();

// Select Drawing View1
            bRet = swModel.Extension.SelectByID2("Drawing View1", "DRAWINGVIEW", 0.0, 0.0, 0.0, true, 0, null, (int)swSelectOption_e.swSelectOptionDefault);
            swView = (
View)((SelectionMgr)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
            int eCount = 0;
            eCount = swView.GetVisibleEntityCount2(swComponent, (
            vEdges = (
object[])swView.GetVisibleEntities2(swComponent, (int)swViewEntityType_e.swViewEntityType_Edge);
Debug.Print("Number of edges found: " + eCount);

// Hide all of the visible edges in the drawing view
            for (i = 0; i <= eCount - 1; i++)
                swEntity = (
true, null);

// Clear all selections

// Show all hidden edges
            swView.HiddenEdges = vEdges;


public SldWorks swApp;



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