ChronoEngine_SwAddin.SWTaskpaneHost.button_chrono_property_Click C# (CSharp) Method

        private void button_chrono_property_Click(object sender, EventArgs e)
        {
            ModelDoc2 swModel;
            swModel = (ModelDoc2)this.mSWApplication.ActiveDoc;
            if (swModel == null)
            {
                System.Windows.Forms.MessageBox.Show("Please open an assembly and select a part!");
                return;
            }

            SelectionMgr swSelMgr = (SelectionMgr)swModel.SelectionManager;

            if (swSelMgr.GetSelectedObjectCount2(-1) == 0)
            {
                System.Windows.Forms.MessageBox.Show("Please select one or more parts!");
                return;
            }
            /*
            //***TEST***
            AttributeDef defattr_test = (AttributeDef)this.mSWApplication.DefineAttribute("mytestt");
            defattr_test.AddParameter("testpar", (int)swParamType_e.swParamTypeDouble, 0.6, 0);
            defattr_test.Register();

            Component2 swPart = (Component2)swSelMgr.GetSelectedObject6(1, -1);
            ModelDoc2 swPartModel = (ModelDoc2)swPart.GetModelDoc2();
            //ModelDoc2 swModel = (ModelDoc2)this.ActiveDoc;
             System.Windows.Forms.MessageBox.Show("attach, v CreateInstance5");
             SolidWorks.Interop.sldworks.Attribute myattr = defattr_test.CreateInstance5(swModel, swPart, "test_data", 0, (int)swInConfigurationOpts_e.swAllConfiguration);
            */

             bool selected_part = false;
             for (int isel = 1; isel <= swSelMgr.GetSelectedObjectCount2(-1); isel++)
                 if ((swSelectType_e)swSelMgr.GetSelectedObjectType3(isel, -1) == swSelectType_e.swSelCOMPONENTS)
                 {
                     selected_part = true;
                 }

             if (!selected_part)
            {
                System.Windows.Forms.MessageBox.Show("Chrono properties can be edited only for parts! Select one or more parts before using it.");
                return;
            }

            // Open modal dialog
            EditChBody myCustomerDialog = new EditChBody();

            // Update dialog properties properties from the selected part(s) (i.e. ChBody in C::E)
            myCustomerDialog.UpdateFromSelection(swSelMgr, ref this.mSWintegration.defattr_chbody); //ref this.mSWintegration.defattr_chconveyor);

            // Show the modal dialog
            if (myCustomerDialog.ShowDialog() == DialogResult.OK)
            {
                // If user pressed OK, apply settings to all selected parts (i.e. ChBody in C::E):
                myCustomerDialog.StoreToSelection(swSelMgr, ref this.mSWintegration.defattr_chbody);//ref this.mSWintegration.defattr_chconveyor);
            }
        }