different values for a ComboBox on each row of an EditorGrid

[andreik65]

Hello,

I'm trying to manage different values for a ComboBox on each row of an EditorGrid.

Basically, a column of the grid is a ComboBox whose selectable values are not statically defined at grid build time, but change every time the user selects a different row.

Currently I'm using gwt-ext where they provided a method setUserCustomCellEditor on ColumnModel. You can pass it a subclass of UserCustomCellEditor. It's got one method, public GridEditor getCellEditor(int colIndex, int rowIndex). It's called any time a cell is about to enter editing. It gives me the ability to initialize the ComboBox with different values.

How can I do it with Ext GWT?

Thanks.
Andrea

[odwyers]

We are looking for this functionality as well in GXT where we can override a ColumnModel method getCellEditor(col, row) and provide a row specific cell editor for an EditorGrid.
Has anyone achieved this ?

Thanks,

Sean

[routologic]

Hi all,

we would also need the functionality in GXT to have different cell editors depending on the actual row data...
Has anyone found a solution so far?

Thanks,
Gergely

[vidj]

Hi everyone,

we actually found a solution for ExtJS maybe it can be adapted for GWT:

Grid-Col has an editor:

{
                                       xtype:'editorgrid',
                                       id: 'somegrid',
                                       store: this.store,
                                       cm: new Ext.grid.ColumnModel([
                                          {
                                             id:'some_category',
                                             header: 'Category',
                                             dataIndex: 'category_id',
                                             renderer: this.getCategoryText
                                          },
                                          {
                                             id:'category_val',
                                             header: 'Value',
                                             dataIndex: 'value_id',
                                            renderer: this.getValueText,
                                                    editor: new Ext.form.ComboBox({
                                                 id: 'value',
                                                 name: 'value',
                                                 mode: 'local',
                                                 store: this.valueStore, //this is an empty store
                                                 valueField:'value_id',
                                                 displayField:'value_text'                                      
                                            })
                                          }
                                       ]),
                                      listeners:{
                              beforeedit:this.getComboValues                                    
                                      }
                                    }// -- eo grid 

then there is a function getComboValues:

function getComboValues(e){

     var combobox = Ext.getCmp('value');
      
      //create tmp store for impact levels
      var tmpStore = new Ext.data.Store({
         reader: new Ext.data.JsonReader({
            root:'data',
            id: 'value_id',
            fields:['value_id','value_text']
         }, Ext.data.Record.create([
            {name: 'value_id'},
            {name: 'value_text'}
         ])),
//fill here your store with the specific data for the combobox
         data: e.grid.valueStore.getById(e.record.get('category_id')).data
      });
      
      //bind the tmpStore to the combobox and set the value that was selected
      combobox.bindStore(tmpStore);
      combobox.setValue(e.value);
      
      return true;
} 

hope i could help

greetz

vidj

[routologic]

Thanks vidj!

I will see if I can implement it in GXT. Anyway, if somebody have already got it, do not hesitate to post a reply.

Thanks once more,
Gergely