How to cancel change state by API, I use preState event and poCmd.mbCancel flag, but this flag doesnt work ?

Hi Tomasz

A last try. Can you compile and test this add-in? It works very well with SW2017 SP5 on my workstation.

using System;

using System.Runtime.InteropServices;

using EPDM.Interop.epdm;

namespace EpdmTest{

  [Guid(""), ComVisible(true)]

  public class BiIEpdmAddIn : IEdmAddIn5  {

    public void GetAddInInfo(ref EdmAddInInfo poInfo, IEdmVault5 poVault, IEdmCmdMgr5 poCmdMgr){

      poInfo.mlAddInVersion = 1;

      poInfo.mlRequiredVersionMajor = 14;

      poInfo.mlRequiredVersionMinor = 1;

      poCmdMgr.AddHook(EdmCmdType.EdmCmd_PreRename);

    }

    public void OnCmd(ref EdmCmd poCmd, ref EdmCmdData[] ppoData){

      IEdmVault5 vault = poCmd.mpoVault as IEdmVault5;

      try{

        switch (poCmd.meCmdType){

          case EdmCmdType.EdmCmd_PreRename:

            poCmd.mbCancel = 1;

            break;

          default:

            break;

        }

      }

      catch (COMException ex){

        string errorName, errorDesc;

        vault.GetErrorString(ex.ErrorCode, out errorName, out errorDesc);

        vault.MsgBox(0, errorDesc, EdmMBoxType.EdmMbt_OKOnly, errorName);

      }

    }

  }

}

BiI SAP-PDM