public void UpdateWBSParts(ArrayList assocItems, IECInstance selectedECInstance)
        {
            if (assocItems == null || assocItems.Count == 0 || selectedECInstance == null)
            {
                return;
            }

            //set cache of WBS items (classname, relationship name)
            IDictionary <string, string> aitems = new Dictionary <string, string> ();

            foreach (string item in assocItems)
            {
                string[] part = item.Split(new char[] { '|' });
                if (part.Length < 1)
                {
                    continue;
                }

                string className    = part[0];
                string relClassName = part[1];
                if (!aitems.ContainsKey(className))
                {
                    aitems.Add(className, relClassName);
                }
            }

            DgnUtilities dgnUtil = DgnUtilities.GetInstance();
            IECRelationshipInstanceCollection ecList = selectedECInstance.GetRelationshipInstances();

            if (ecList == null || ecList.Count == 0)
            {
                return;
            }

            bool   needWBS = false;
            string msg     = string.Empty;
            //iterate thru relationship instances
            IEnumerator en = ecList.GetEnumerator();

            while (en.MoveNext())
            {
                IECRelationshipInstance rel = en.Current as IECRelationshipInstance;
                if (rel == null)
                {
                    continue;
                }

                string      wbsRelationshipName = rel.ClassDefinition.Name;
                IECInstance wbsSource           = rel.Source;
                if (wbsSource == null)
                {
                    continue;
                }

                string wbsSourceClassName = wbsSource.ClassDefinition.Name;
                //match wbs type and pass to UpdateWBSComboxValue()
                if (!aitems.ContainsKey(wbsSourceClassName))
                {
                    continue;
                }

                if (UpdateWBSComboxValue(wbsSource, wbsRelationshipName) == WBSUpdateType.NeedToCreate)
                {
                    IECPropertyValue sourceVal = wbsSource.FindPropertyValue(s_WBSName, false, false, false);
                    string           val       = string.Empty;
                    if (sourceVal != null && !sourceVal.IsNull)
                    {
                        val = sourceVal.StringValue;
                    }

                    msg     = msg + "\n" + string.Format(LocalizableStrings.MissingWbs, wbsSourceClassName, val);
                    needWBS = true;
                }
            }
            if (needWBS && !string.IsNullOrEmpty(msg))
            {
                string val = WorkspaceUtilities.GetMSConfigVariable("AllowPlacementOnMissingWBSItems");
                if (string.IsNullOrEmpty(val) || val != "1")
                {
                    dgnUtil.RunKeyin("BMECH DEFERDEFAULTCMD");
                }

                //this value is used in consistency manager placement.
                //setting to false allows CM to display instances correctly
                dgnUtil.ConsistencyPlacementValidState = false;

                string message = string.Format(LocalizableStrings.AlertMissingWbs, msg);
                dgnUtil.ConsistencyPlacementErrorMessage = message;
                MessageBox.Show(message, LocalizableStrings.WBSAlert, MessageBoxButtons.OK, MessageBoxIcon.Warning);
                WorkspaceUtilities.DisplayWarningMessage(LocalizableStrings.WBSAlert, message);
            }
        }
        private void OnCellValueChanged
        (
            object sender,
            DataGridViewCellEventArgs e
        )
        {
            if (e.ColumnIndex != 1)
            {
                return;
            }

            if (e.RowIndex < 0 || e.ColumnIndex < 0)
            {
                return;
            }

            IECClass ecClass = getECClassInformationForCurrentSelection(e.RowIndex);
            //this[ClassColumn, e.RowIndex].Tag as IECClass;
            IECRelationshipClass ecRelClass = getECRelationshipClassInformationForCurrentSelection(e.RowIndex);
            //this[ClassColumn, e.RowIndex].Tag as IECRelationshipClass;
            string strVal = LocalizableStrings.None;

            if (null != this[ComboBoxColumn, e.RowIndex].Value)
            {
                strVal = this[ComboBoxColumn, e.RowIndex].Value.ToString();
            }

            if (strVal == _cstr_Varies)
            {
                return;
            }

            DgnUtilities dgnUtil = DgnUtilities.GetInstance();

            IECInstance newECIsnt = getInstanceForCurrentSelection(e.RowIndex, strVal);

            // get from Tag
            //dgnUtil.GetSourceInstance (ecClass, strVal);

            foreach (IECInstance ecInstance in _instList)
            {
                IECRelationshipInstanceCollection     ecRelCol      = ecInstance.GetRelationshipInstances();
                IEnumerator <IECRelationshipInstance> ecRelInstEnum = ecRelCol.GetEnumerator();

                bool newSourceSet = false;
                while (ecRelInstEnum.MoveNext())
                {
                    IECRelationshipInstance ecRelInst = ecRelInstEnum.Current;
                    if (!ecRelInst.ClassDefinition.Is(ecRelClass))
                    {
                        continue;
                    }

                    if (strVal == LocalizableStrings.None || string.IsNullOrEmpty(strVal))
                    {
                        ecRelCol.Remove(ecRelInst);
                    }
                    else
                    {
                        ecRelInst.Source = newECIsnt;
                    }
                    newSourceSet = true;
                    break;
                }

                if (!newSourceSet && newECIsnt != null)
                {
                    IECRelationshipInstance temporaryRelInst = ecRelClass.CreateInstance() as IECRelationshipInstance;
                    temporaryRelInst.Source = newECIsnt;
                    temporaryRelInst.Target = ecInstance;
                    ecInstance.GetRelationshipInstances().Add(temporaryRelInst);
                }

                IECInstance ecInst = newECIsnt;
                if (ecInst != null)
                {
                    if ((dgnUtil.IsECInstanceFromReferenceFile(ecInst) || dgnUtil.IsECInstanceReferencedOut(ecInst) || ecInst.IsReadOnly))
                    {
                        ecInst = null;
                    }
                }

                DataGridViewImageCell tempImageCell = this["optionEdit", e.RowIndex] as DataGridViewImageCell;
                tempImageCell.Tag = ecInst;

                tempImageCell     = this["optionDelete", e.RowIndex] as DataGridViewImageCell;
                tempImageCell.Tag = ecInst;

                //Mark the property (having business key CA/or NAME property if no Business key is defined) as changed and set the event which will reset the property pane.
                //This is required to update UNIT and SERVICE property listed in property pane on the fly whenever user changes the UNIT or SERVICE in ASSOCIATIONS pane.
                IECPropertyValue propVal = BusinessKeyUtility.GetPropertyValue(ecInstance);
                if (propVal != null)
                {
                    ecInstance.OnECPropertyValueChanged(propVal);
                }
            }

            SaveSettings();
        }