how to send first value of the combobox to store to get table data and display in extjs

Question

I'm new to ExtJs and currently working on ExtJs5 for one scenario.

Below is the code for combo box. visible value in the combobox is "tr" and i need to pass the value to the store to get the report dashboard (table) and to display in below. how to do i access the report item id within the combobox?

{
  xtype: 'combo', 
  fieldLabel: LANG.LOGIN_LANG,
  id : 'lang', 
  store:[['tr','Türkçe'],['ru','Русский'],['en','English']],
  mode: 'local',
  triggerAction: 'all',
  value: 'tr',
  selectOnFocus:true
},

Also, when i click on reset , the combo box should be reset to the first value in case selected any-other value.

Answer 1

Do you mean that you want a combobox and you want a button which reselects the first value from combobox? If that is so. Here is an example. This is how you do it:-

Ext.create('Ext.form.ComboBox', {
        fieldLabel: 'Favourite Color',

        id: 'FavouriteColor',
        name: 'FavouriteColor',
        editable: false,
        queryMode: 'local',
        displayField: 'name',
        valueField: 'abbr',
        renderTo: Ext.getBody(),
        store: Ext.create('Ext.data.Store', {
            fields: ['abbr', 'name'],
            data: [{
                "abbr": "blue",
                "name": "Blue"
            }, {
                "abbr": "black",
                "name": "Black"
            }, {
                "abbr": "green",
                "name": "Green"
            }, {
                "abbr": "purple",
                "name": "Purple"
            }, {
                "abbr": "orange",
                "name": "Orange"
            }, {
                "abbr": "red",
                "name": "Red"
            }]
        })

    });

    Ext.create('Ext.Button', {
        renderTo: Ext.getBody(),
        text: 'Reset',
        handler: function () {
            Ext.getCmp('FavouriteColor').setValue('blue');
        }

    });

For future references, please refer to the Sencha ext documentation for the right format to create combobox.