combo reset on selection change

[chandan.behura]

Hi ,
I have a combo for selecting any value from there , some rows of a grid( with selection.checkBodModel) is getting checked for that selected combo value(as i am getting the values to which i have to checked on selection event of the combo).

Up to that all is fine . But now i want that , if i will make some change in the check boxes(means if i will check/oncheck some rows in the grid ) then the combo should reset.So how i will handel the reset of combo onselection change of grid.

onClickRegion: function(){
        var regionDisplayField = Ext.getCmp('regionTip');
        var selection = Ext.getCmp('regionCheckgridId').getSelectionModel().getSelection();
         var combo =Ext.getCmp('DGPprferenceCombo');
      //here i want to do that, if i will do any changes except the already checked rows(that was for the combo selection) , my combo should reset.
        selectedRegion.length = 0;
        //selectedProcessingRegion = [];
        for ( var i = 0; i < selection.length; i++) {
            selectedRegion.push(selection[i].data.region);
        }
        console.log(selectedRegion);
         regionPopUp.hide();
    },

I need help on that please help me.

[scottmartin]

When you change the grid, are wanting to change the value of a single combo (eg: toolbar), or the field combo for all the selected records?

Scott.

[chandan.behura]

When you change the grid, are wanting to change the value of a single combo (eg: toolbar), or the field combo for all the selected records?

Scott.

When the grid will change in the sence that if i will chech/uncheck any pther row then the combo should simply reset i.e the blank text will come in combo.(combo.reset())

[scottmartin]

Simply update the record/field (record.set) and the grid will update as well.

Scott.