Using "contains" filter gives me all rows that do not have the specified value. How can I filter grid rows that do not contain a certain value, so that I only get rows that do have the value? I tried "doesnotcontain" which doesn't work.
if (val) { grid.dataSource.filter({ logic: "or", filters: [ { field: "someField", operator: "contains", value: val }, { field: "someField2", operator: "contains", value: val },...