createMatcherFunction = function(data) {
            return function(record) {
                for (var dataIndex in data) {
                    if (record.get(dataIndex) != data[dataIndex]) {
                        return false;
                    }
                }
                
                return true;
            };
        }
@cfg {String} autoExpandColumn
<p>The <tt>{@link Ext.grid.Column#id id}</tt> of a {@link Ext.grid.Column column} in
this grid that should expand to fill unused space. This value specified here can not
be <tt>0</tt>.</p>
<br><p><b>Note</b>: If the Grid's {@link Ext.grid.GridView view} is configured with
<tt>{@link Ext.grid.GridView#forceFit forceFit}=true</tt> the <tt>autoExpandColumn</tt>
is ignored. See {@link Ext.grid.Column}.<tt>{@link Ext.grid.Column#width width}</tt>
for additional details.</p>
<p>See <tt>{@link #autoExpandMax}</tt> and <tt>{@link #autoExpandMin}</tt> also.</p>