Alternate fills color is not working for table

Hi @Mahesh12, here is a script that sets table rows to alternating cell styles. It's a quick one, so please test and let me know how it goes.

- Mark

/*
    by m1b
    here: https://community.adobe.com/t5/indesign-discussions/alternate-fills-color-is-not-working-for-table/td-p/13280870
*/


// table cell style names for alternating rows:
var cellStyleNames = [
    'Body',
    'Body Alt',
];


function main() {

    if (app.selection.length == 0) {
        alert('Please make a selection and run script again.')
        return;
    }

    if (
        !app.selection[0].hasOwnProperty('parentStory')
        || !app.selection[0].parentStory.tables[0].isValid
    ) {
        alert('No table found in selection.')
        return;
    }

    var doc = app.activeDocument,
        table = app.selection[0].parentStory.tables[0],
        rows = table.rows,
        alternator = 0,
        cellStyles = [],
        clearOverrides = true;

    // collect the cell styles
    cellStyleNamesLoop:
    for (var i = 0; i < cellStyleNames.length; i++)
        for (var j = 0; j < doc.allCellStyles.length; j++)
            if (cellStyleNames[i] == doc.allCellStyles[j].name) {
                cellStyles.push(doc.allCellStyles[j]);
                continue cellStyleNamesLoop;
            }

    // must have at least two!
    if (cellStyles.length < 2) {
        alert('Not enough cell styles found.');
        return;
    }

    // apply to each row
    for (var i = 0; i < rows.length; i++) {

        if (rows[i].rowType === RowTypes.BODY_ROW) {

            rows[i].cells.everyItem().appliedCellStyle = cellStyles[alternator];

            if (clearOverrides)
                rows[i].cells.everyItem().clearCellStyleOverrides(false);

            // toggle the alternator
            alternator = (alternator + 1) % cellStyles.length;

        }

    }

};


app.doScript(main, ScriptLanguage.JAVASCRIPT, undefined, UndoModes.ENTIRE_SCRIPT, "Set alternating table styles");