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Fire Undo and Redo Pre- and Post-notifications in Assembly Document (C#)

This example shows how to fire Undo and Redo post-notifications in an assembly document.

// ----------------------------------------------------------------------------

// Preconditions: Open:

//<SolidWorks_install_dir>\samples\tutorial\smartcomponents\stepped_shaft.sldasm.

//

// The base-plate<1> component is selected and then hidden, and

// pre- and post-notifications are fired indicating that an

// Undo has occurred. A Redo is performed and pre- and

// post-notifications are fired for it. Finally another Undo

// is performed (and pre- and post-notifications are fired)

// so that the assembly document returns to its just-opened state.

//

// Postconditions: None

// ----------------------------------------------------------------------------

using SolidWorks.Interop.sldworks;

using SolidWorks.Interop.swconst;

using System;

using System.Collections;

using System.Windows.Forms;

namespace Macro1.csproj

{

    public partial class SolidWorksMacro

    {

        public AssemblyDoc swAssemblyDoc;

        public void Main()

        {

            ModelDoc2 swModel = default(ModelDoc2);

            ModelDocExtension swModelDocExt = default(ModelDocExtension);

            bool boolstatus = false;

            Hashtable openAssembly = default(Hashtable);

 

            swModel = (ModelDoc2)swApp.ActiveDoc;

            swModelDocExt = (ModelDocExtension)swModel.Extension;

 

            // Event notification

            swAssemblyDoc = (AssemblyDoc)swModel;

            openAssembly = new Hashtable();

            AttachEventHandlers();

 

            // Select a component and hide it

            boolstatus = swModelDocExt.SelectByID2("base_plate-1@stepped_shaft", "COMPONENT", 0, 0, 0, false, 0, null, 0);

            swModel.HideComponent2();

            swModel.ClearSelection2(true);

 

            // Undo hiding of the component

            // and fire pre- and post-notifications

            swModel.EditUndo2(1);

 

            // Redo hiding of the component

            // and fire pre- and post-notifications

            swModel.EditRedo2(1);

 

            // Undo hiding of the component

            // so that the assembly document

            // is unchanged

            swModel.EditUndo2(1);

 

            // Rebuild model

            swModel.ForceRebuild3(true);

        }

        /// <summary>

        /// The SldWorks swApp variable is pre-assigned for you.

        /// </summary>

        public SldWorks swApp;

        public void AttachEventHandlers()

        {

            AttachSWEvents();

        }

        public void AttachSWEvents()

        {

            swAssemblyDoc.UndoPostNotify += this.swAssembly_UndoPostNotify;

            swAssemblyDoc.UndoPreNotify += this.swAssembly_UndoPreNotify;

            swAssemblyDoc.RedoPostNotify += this.swAssembly_RedoPostNotify;

            swAssemblyDoc.RedoPreNotify += this.swAssembly_RedoPreNotify;

        }

        public int swAssembly_UndoPostNotify()

        {

            //Display message after undo action occurs

// NOTE: Because the message box may be displayed

// behind an opened window, you might not see it.

// If so, then check the Taskbar for it.

            MessageBox.Show("An Undo post-notification event has been fired.");

            return 1;

        }

        public int swAssembly_UndoPreNotify()

        {

            //Display message after undo action occurs

// NOTE: Because the message box may be displayed

// behind an opened window, you might not see it.

// If so, then check the Taskbar for it.

            MessageBox.Show("An Undo pre-notification event has been fired.");

            return 1;

        }

        public int swAssembly_RedoPostNotify()

        {

            //Display message after undo action occurs

// NOTE: Because the message box may be displayed

// behind an opened window, you might not see it.

// If so, then check the Taskbar for it.

            MessageBox.Show("A Redo post-notification event has been fired.");

            return 1;

        }

        public int swAssembly_RedoPreNotify()

        {

            //Display message after undo action occurs

// NOTE: Because the message box may be displayed

// behind an opened window, you might not see it.

// If so, then check the Taskbar for it.

            MessageBox.Show("A Redo pre-notification event has been fired.");

            return 1;

        }

    }

}



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