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Fire Notification When Activating a Sheet Example (C#)

This example shows how to fire a notification when a sheet is activated in a drawing document.

//---------------------------------------------------------------
//Preconditions:
// 1. Open 
//    install_dir\samples\tutorial\advdrawings\foodprocessor.slddrw.
// 2. Run this macro (press F5).
//
// Postconditions: A message box informs you that a sheet is about to be 
// activated. Click OK to close the message box.
//
// NOTE: The IDrawingDoc ActivateSheetPostNotify event only fires
// when a sheet is interactively activated in SolidWorks; this event
// does not fire when a sheet is activated through the API.
//---------------------------------------------------------------
using SolidWorks.Interop.sldworks;
using SolidWorks.Interop.swconst;
using System;
using System.Diagnostics;
using System.Windows.Forms;
 
namespace ActivateSheetEventsCSharp.csproj
{
    public partial class SolidWorksMacro
    {
 
        public DrawingDoc swDrawingDoc;
 
        public void Main()
        {
 
            ModelDoc2 swModel;
            Boolean status;
 
            swModel = (ModelDoc2)swApp.ActiveDoc;
 
            //Set up events
            swDrawingDoc = (DrawingDoc)swModel;
            AttachEventHandlers();
 
            // Activate Sheet 4
            status = swDrawingDoc.ActivateSheet("Sheet4");
        }
 
        public void AttachEventHandlers()
        {
            AttachSWEvents();
        }
 
        public void AttachSWEvents()
        {
            swDrawingDoc.ActivateSheetPreNotify += this.swDraw_ActivateSheetPreNotify;
        }
 
        private int swDraw_ActivateSheetPreNotify(string SheetName)
        {
            MessageBox.Show("A sheet is about to be activated.");
            return 1;
        }
 
 
        /// <summary>
        ///  The SldWorks swApp variable is pre-assigned for you.
        /// </summary>
        public SldWorks swApp;
    }
}


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