SIPSorcery.SIPProviderManager.SIPProvidersDataGrid_MouseLeftButtonUp C# (CSharp) Method

        private void SIPProvidersDataGrid_MouseLeftButtonUp(object sender, System.Windows.Input.MouseButtonEventArgs e)
        {
            try
            {
                if (m_riaContext.SIPProviders.Count() > 0)
                {
                     DataGrid dataGrid = (DataGrid)sender;
                     if (dataGrid.CurrentColumn.Header as string != "Delete")
                     {
                         SIPProvider sipProvider = (SIPProvider)m_sipProvidersDataGrid.SelectedItem;

                         if (m_selectedSIPProvider == null || m_selectedSIPProvider != sipProvider)
                         {
                             m_selectedSIPProvider = sipProvider;
                             m_editControl = new SIPProviderDetailsControl(DetailsControlModesEnum.Edit, m_selectedSIPProvider, m_owner, null, UpdateSIPProvider, DetailsControlClosed);
                             m_sipProvidersPanel.SetDetailsElement(m_editControl);
                         }
                     }
                }
            }
            catch (Exception excp)
            {
                string excpMessage = (excp.InnerException != null) ? excp.InnerException.Message : excp.Message;
                LogActivityMessage_External(MessageLevelsEnum.Error, "Exception showing SIP Provider details. " + excpMessage);
                m_selectedSIPProvider = null;
            }
        }