/// <summary>
        ///     Open selected element in diagram and select in project browser
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void CellContentDoubleClick(object sender, DataGridViewCellEventArgs e)
        {
            var             grid = (DataGridView)sender;
            string          guid = null;
            DataGridViewRow row  = grid.Rows[e.RowIndex];

            // ReSharper disable CanBeReplacedWithTryCastAndCheckForNull
            if (row.DataBoundItem is IDecisionRelation)
            {
                var link = (IDecisionRelation)row.DataBoundItem;
                DetailViewHandler.Instance.OpenDecisionDetailView(link.RelatedDecision);
            }
            else
            {
                if (row.DataBoundItem is IStakeholderAction)
                {
                    var stakeholderAction = (IStakeholderAction)row.DataBoundItem;
                    guid = stakeholderAction.Stakeholder.GUID;
                }
                else if (row.DataBoundItem is ITraceLink)
                {
                    var link = (ITraceLink)row.DataBoundItem;
                    guid = link.TracedElementGUID;
                }

                if (guid != null && !"".Equals(guid))
                {
                    IEAElement element = EAMain.Repository.GetElementByGUID(guid);
                    element.ShowInDiagrams();
                }
            }
            // ReSharper restore CanBeReplacedWithTryCastAndCheckForNull
        }