SpreadJS Documentation
isFiltered Method
GC.Spread.Sheets.Filter Namespace > RowFilterBase type : isFiltered Method
The column index.
Gets a value that indicates whether any row or specified column is filtered.
Syntax
var instance = new GC.Spread.Sheets.Filter.RowFilterBase(range);
var value; // Type: boolean
value = instance.isFiltered(col);
function isFiltered( 
   col : number
) : boolean;

Parameters

col
The column index.

Return Value

No parameter true if some rows are filtered; otherwise, false. One parameter col true if the specified column is filtered; otherwise, false.
Example
This example uses the isColumnFiltered method.
activeSheet.setValue(0, 0, "North");
activeSheet.setValue(1, 0, "South");
activeSheet.setValue(2, 0, "East");
activeSheet.setValue(3, 0, "South");
activeSheet.setValue(4, 0, "North");
activeSheet.setValue(5, 0, "North");
activeSheet.setValue(6, 0, "West");
activeSheet.setColumnWidth(0, 80);

//Set a row filter.
activeSheet.rowFilter(new GC.Spread.Sheets.Filter.HideRowFilter(new GC.Spread.Sheets.Range(0, 0, 7, 1)));

$("#button1").click(function () {
    var rowFilter = spread.getActiveSheet().rowFilter();
    if (rowFilter.isFiltered(0)) {
        alert("Row-filtering executed for Column1");
    } else {
        alert("Row-filtering not executed for Column1");
    }
});
//Add button control to page
<input type="button" id="button1" value="button1"/>
See Also

Reference

RowFilterBase type