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dhtmlxgrid
API Methods

### filterBy(column, value, preserve)

Required library edition:
Required library file: dhtmlxgrid_filter.js

filter grid by mask

- column - {number} zero based index of column.
- value - {string} value by which the column will be filtered.
- preserve - {true|false} filter current or initial state (false by default)

       //filter grid by 2nd column by value "alf"
       mygrid.filterBy(1,"alf");
       //filter grid by 2nd column with more comlex rule
       mygrid.filterBy(1,function(data){
                return   data.toString().indexOf("alf")!=-1;  // true - show the related row , false - hide the related row
       });
       //filter current grid state by 3rd column by value "Omega"
       mygrid.filterBy(2,"Omega",true);

See also: filterByAll, findCell, makeFilter, getFilterElement