Code for viewing the Supermap object attribute

Using system; using system. collections. generic; using system. componentmodel; using system. data; using system. drawing; using system. LINQ; using system. text; using system. windows. forms; using hzzykj. idrmis. core; using Supermap. mapping; using Supermap. ui; using Supermap. data; using hzzykj. idrmis. edim. tools; using hzzykj. idrmis. edim. toolclass; namespace hzzykj. idrmis. edim {public partial class attributetreeform: fo RM {private mapcontrol; private list <layer> layers = new list <layer> (); public static attributetreeform _ attributetreeform = NULL; Public attributetreeform () {initializecomponent (); mapcontrol = appcontext. mapcontrol as mapcontrol;} private void attributetreeform_load (Object sender, eventargs e) {layers = mapcontrol. map. layers; foreach (layer item in layers) {This. layers. add (Item);} layer Layer = This. layers [layerform. _ layerform. combobox1.selectedindex]; selection = layer. selection; recordset = selection. torecordset (); treenode tn_layer_father = new treenode (layer. name); treeview1.nodes. add (tn_layer_father); For (INT I = 0; I <recordset. recordcount; I ++) {string name = recordset. getfieldvalue (0 ). tostring (); treenode tn_fild_child = new treenode (Name); tn_layer_father.nodes.add (tn_fild_child); recordset. movenext ();} This. treeview1.selectednode = This. treeview1.nodes [0]. nodes [0]; treeview1.expandall ();} private void evaluate (Object sender, inclue) {_ attributetreeform = NULL;} private void treeviewinclunodemouseclick (Object sender, treenodemouseclickeventargs E) {} private void treeview1_afterselect (OBJ ECT sender, treevieweventargs e) {bindinglist <fieldinfoname> gridbindinglist = new bindinglist <fieldinfoname> (); // list <fieldinfoname> gridlist = new list <fieldinfoname> (); if (this. treeview1.selectednode. parent! = NULL) {layers = mapcontrol. map. layers; foreach (layer item in layers) {This. layers. add (item);} layer Layer = This. layers [layerform. _ layerform. combobox1.selectedindex]; selection = layer. selection; recordset = selection. torecordset (); fieldinfos = recordset. getfieldinfos (); For (INT I = 0; I <recordset. recordcount; I ++) {If (this. treeview1.selectednode. TEXT = recordset. getfieldvalue (0 ). tostring () {for (Int J = 0; j <recordset. fieldcount; j ++) {If (this. checkbox1.checked = false) {string x = fieldinfos [J]. name; string y = NULL; If (recordset. getfieldvalue (j ). tostring () = NULL) {Y = NULL;} else {Y = recordset. getfieldvalue (j ). tostring (); // always error} fieldinfoname fin = new fieldinfoname (x, y); gridbindinglist. add (FIN);} else {If (fieldinfos [J]. issystemfield = false) {string x = fieldinfos [J]. name; string y = recordset. getfieldvalue (j ). tostring (); fieldinfoname fin = new fieldinfoname (x, y); gridbindinglist. add (FIN) ;}}} recordset. movenext ();} This. datagridview1.datasource = gridbindinglist;} else {MessageBox. show ("select subnode") ;}} private void datagridviewinclucellendedit (Object sender, datagridviewcelleventargs e) {} private void btn_ OK _click (Object sender, eventargs e) {layers = mapcontrol. map. layers; foreach (layer item in layers) {This. layers. add (item);} layer Layer = This. layers [layerform. _ layerform. combobox1.selectedindex]; selection = layer. selection; recordset = selection. torecordset (); fieldinfos = recordset. getfieldinfos (); For (INT I = 0; I <recordset. recordcount; I ++) {If (this. treeview1.selectednode. TEXT = recordset. getfieldvalue (0 ). tostring () {for (Int J = 0; j <recordset. fieldcount; j ++) {If (fieldinfos [J]. issystemfield = false) {recordset. edit (); string a = This. datagridview1.rows [J]. cells [1]. value. tostring (); recordset. setfieldvalue (J, a); recordset. update () ;}} recordset. movenext ();} MessageBox. show ("attribute value modified successfully");} private void checkbox1_checkedchanged (Object sender, eventargs e ){}}}