Hello Arnold,

The igGridFiltering.filter API method has a logic property in the expressions parameter, so you can use it to indicate your filtering logic for a single condition (Currently we do not support grouping of filtering conditions by logic, so it may not suit your need in certain scenarios.) You should try it and see if it works for you.

For example the here is a code which will filter the data in correct way:

$("#grid1").igGridFiltering("filter", [
{fieldName: "MakeFlag", expr: true, cond: "true" , logic: "AND"},
{fieldName: "ProductID", expr: 3, cond: "equals", logic: "OR"},
{fieldName: "ProductID", expr: 2, cond: "equals", logic: "OR"}
], true);

What you have to keep in mind is to always put your AND logic conditions in the first place followed by the OR logic conditions.

If you don't want to enable the igGridFiltering feature you can directly use the igDataSource.filter API. To get a reference to the igGrid underlying data source object you can use the following code:

$("#grid1").data("igGrid").dataSource;

P.S.: You can log a new product idea for the grouping of filtering conditions by logic in igDataSource.

Hope this helps,
Martin Pavlov
Infragistics, Inc.