How to make cell as non editable based on another cell value in Editable Grid in gxt

Question

Hi I am creating Editable Grid using GXT 2.2.3. I created columns like below:

   List eventList=new ArrayList();
    eventList.ad         


        

Answer 1

Add an afterEdit Listener to grid.

 private EditorGrid grid;
 private ListStore gridStore;
 private ColumnModel cm;
 public void onModuleLoad() {

 ContentPanel cp = new ContentPanel();
 cp.setSize(500, 500);




 List configs = new ArrayList();  


List eventList=new ArrayList();
eventList.add("Mark/Modify Attendance");
eventList.add("Remove Attendance");
eventList.add("Modify Roster");
eventList.add("Mark OD");
eventList.add("Forgot To Checkin");

final SimpleComboBox eventcombo = new SimpleComboBox(); 
eventcombo.setEmptyText("");
eventcombo.setTriggerAction(TriggerAction.ALL);
//  EventCombo.setSelection(eventList);
 CellEditor eventComboEditor = new CellEditor(eventcombo) {  
    public Object preProcessValue(Object value) {  
      if (value == null) {  
        return value;  
      }  
      return eventcombo.findModel(value.toString());  
    }  
  public Object postProcessValue(Object value) {  
       if (value == null) {  
         return value;  
       }  
     return ((ModelData) value).get("value");  
   }  
 };  
 eventcombo.setForceSelection(true);  
 eventcombo.setEmptyText("");
 eventcombo.setTriggerAction(TriggerAction.ALL); 
 eventcombo.add(eventList);

ColumnConfig column = new ColumnConfig();  
column.setId("event");  
column.setHeaderHtml("Co Manager/Distributor");  
column.setEditor(eventComboEditor);  
column.setWidth(200);
configs.add(column);  

ColumnConfig column2 = new ColumnConfig();  
column2.setId("test");  
column2.setHeaderHtml("Test");  
column2.setEditor(new CellEditor(new TextField()));
column2.setWidth(100);
configs.add(column2);  

ColumnConfig column3 = new ColumnConfig("desk", "Desk", 105);  
column3.setEditor(new CellEditor(new TextField()));
configs.add(column3);

cm = new ColumnModel(configs);
gridStore = new ListStore();
ModelData md = new BaseModelData();
md.set("event", "Modify Roster");
md.set("test","A1");
md.set("desk", "A2");
gridStore.add(md);

md = new BaseModelData();
md.set("test","B1");
md.set("event", "Remove Attendance");
md.set("desk", "B2");
gridStore.add(md);

md = new BaseModelData();
md.set("test","C1");
md.set("desk", "C2");
md.set("event", "Mark OD");
gridStore.add(md);

gridStore.commitChanges();

grid = new EditorGrid(gridStore, cm);
grid.setBorders(true);
grid.setStripeRows(true);
grid.setTrackMouseOver(true);
grid.disableTextSelection(false);
grid.setHideHeaders(false);
grid.setHeight(500);
grid.getSelectionModel().setSelectionMode(SelectionMode.SINGLE);

grid.addListener(Events.AfterEdit, gridAfterEditListener);



Viewport viewport = new Viewport();
viewport.setLayout(new FlowLayout());

cp.add(grid);
viewport.add(cp ,new FitData(new Margins(0,0,56,0)));
RootPanel.get("content").add(viewport);


}


Listener> gridAfterEditListener = new Listener>() {
  @Override
    public void handleEvent(GridEvent be) {

     ModelData data = be.getModel();
     String val = data.get("event");
    if(val.equalsIgnoreCase("Remove Attendance")){
          data.set("test","new test");
          grid.getColumnModel().getColumnById("desk").getEditor().disable();
          grid.getStore().update(data); 
          grid.getView().refresh(true);
    }   
   else{

        data.set("test","old test");
        grid.getColumnModel().getColumnById("desk").getEditor().enable();
        grid.getStore().update(data); 
        grid.getView().refresh(true);

     }
 }
};

The complete code