Ext js sorting custom column by contents

Question

I have a grid in ext with some custom columns, and I want to be able to sort this column - I want to sort it by what is displayed inside of it, but really I just cannot figu

Answer 1

There is a convert method on the Ext.data.Model class that allows you to convert the data before it's being used. Then you can just specify this 'dataIndex' in your column and do a normal sort. The column will be sorted by that converted value. Here is the a sample model with just one field (Parent) and with it's corresponding conversion:

Ext.define('MyModel', {
    extend: 'Ext.data.Model',
    fields: [
        {name: 'Parent',   type: 'string', convert: sortParent},
        // other fields...
    ],
    sortParent: function(value, record) {
        var ret = record.raw.Parent;
        if (ret) {
            return ret.Name;
        } else {
            meta.tdCls = 'invisible';
            return record.data.Name;
        }
    }
});