I am trying to create a search box for a kendoUI grid. I have been able to get a start on doing a search based on one field however I would like the value in my search box to search all columns in the grid.

```
function() {
            grid.data("kendoGrid").dataSource.filter({
                field: "ProductName",
                operator: "contains",
                value: $('#category').val()
            });

        }

```

[See js fiddle example](http://jsfiddle.net/nlarkin/Naka3/11/)

I tried using the or logic operator here: [jsfiddle.net](http://jsfiddle.net/nlarkin/Naka3/17/) however I can't seem to get it to work.... (see or logic button)