Updating (seting) column herder

[darkhorni]

I have tried to set column header with these codes but they didn't work. I couldn't figure out what to do.

this.headerCt.setColumnHeader(2,"Surname");
grid.getColumnModel().setColumnHeader(2,"Surname"); 

[redraid]

You can get column by itemId and rename header text:

Ext.create('Ext.data.Store', {
    storeId:'simpsonsStore',
    fields:['name', 'email', 'phone'],
    data:{'items':[
        { 'name': 'Lisa',  "email":"lisa@simpsons.com",  "phone":"555-111-1224"  },
        { 'name': 'Bart',  "email":"bart@simpsons.com",  "phone":"555-222-1234" },
        { 'name': 'Homer', "email":"home@simpsons.com",  "phone":"555-222-1244"  },
        { 'name': 'Marge', "email":"marge@simpsons.com", "phone":"555-222-1254"  }
    ]},
    proxy: {
        type: 'memory',
        reader: {
            type: 'json',
            root: 'items'
        }
    }
});

Ext.create('Ext.grid.Panel', {
    title: 'Simpsons',
    store: Ext.data.StoreManager.lookup('simpsonsStore'),
    columns: [
        { itemId: 'col1', header: 'Name',  dataIndex: 'name' },
        { header: 'Email', dataIndex: 'email', flex: 1 },
        { header: 'Phone', dataIndex: 'phone' }
    ],
    height: 200,
    width: 400,
    renderTo: Ext.getBody(),
    tbar: [{
        text: 'Rename 1st column',
        handler: function (btn) {
            var grid = btn.up('grid'),
                col = grid.down('#col1');
            
            console.log(grid, col);
            col.setText('Renamed');
        }
    }]
});