How to set columns filter dynamically?

[burakkilic]

Hello;

I want to do something like:

 var field = 'name.'+ 'en'; //en will be dynamic
    $scope.cols = [
        { valueExpr: "shop.name.en", title: "Name", filter: { field : "text" }, show: true },
    ];

but it doesn't work. How can I do that?

[tanmuhittin]

issue #888