I have the following chart: chart is defined globally
chart = new google.visualization.AnnotatedTimeLine(document.getElementById('linechart_div')); data script is created in asp.net code behind and written to the page via response.write var data = new google.visualization.DataTable(); data.addColumn('date', 'Date'); data.addColumn('number', 'Transaction Total'); data.addColumn('string', 'title1'); data.addColumn('string', 'text1'); data.addColumn('number', 'Transaction Volume'); data.addColumn('string', 'title2'); data.addColumn('string', 'text2'); data.addRows([[new Date(2010, 4, 18), 0, undefined, undefined, 0, undefined, undefined], [new Date(2010, 4, 19), 0, undefined, undefined, 0, undefined, undefined], [new Date(2010, 4, 20), 0, undefined, undefined, 0, undefined, undefined], [new Date(2010, 4, 21), 0, undefined, undefined, 0, undefined, undefined], [new Date(2010, 4, 22), 0, undefined, undefined, 0, undefined, undefined], [new Date(2010, 4, 23), 0, undefined, undefined, 0, undefined, undefined], [new Date(2010, 4, 24), 0, undefined, undefined, 0, undefined, undefined], [new Date(2010, 4, 25), 0, undefined, undefined, 0, undefined, undefined], [new Date(2010, 4, 26), 0, undefined, undefined, 0, undefined, undefined], [new Date(2010, 4, 27), 0, undefined, undefined, 0, undefined, undefined], [new Date(2010, 4, 28), 0, undefined, undefined, 0, undefined, undefined], [new Date(2010, 4, 29), 0, undefined, undefined, 0, undefined, undefined], [new Date(2010, 4, 30), 0, undefined, undefined, 0, undefined, undefined], [new Date(2010, 4, 31), 0, undefined, undefined, 0, undefined, undefined], [new Date(2010, 5, 1), 0, undefined, undefined, 0, undefined, undefined], [new Date(2010, 5, 2), 777, undefined, undefined, 53, undefined, undefined], [new Date(2010, 5, 3), 0, undefined, undefined, 0, undefined, undefined], [new Date(2010, 5, 4), 0, undefined, undefined, 0, undefined, undefined], [new Date(2010, 5, 5), 0, undefined, undefined, 0, undefined, undefined], [new Date(2010, 5, 6), 0, undefined, undefined, 0, undefined, undefined], [new Date(2010, 5, 7), -4, undefined, undefined, 1, undefined, undefined], [new Date(2010, 5, 8), 0, undefined, undefined, 0, undefined, undefined], [new Date(2010, 5, 9), 0, undefined, undefined, 0, undefined, undefined], [new Date(2010, 5, 10), 0, undefined, undefined, 0, undefined, undefined], [new Date(2010, 5, 11), 0, undefined, undefined, 0, undefined, undefined], [new Date(2010, 5, 12), 0, undefined, undefined, 0, undefined, undefined], [new Date(2010, 5, 13), 0, undefined, undefined, 0, undefined, undefined], [new Date(2010, 5, 14), 0, undefined, undefined, 0, undefined, undefined], [new Date(2010, 5, 15), 0, undefined, undefined, 0, undefined, undefined], [new Date(2010, 5, 16), 0, undefined, undefined, 0, undefined, undefined], [new Date(2010, 5, 17), 0, undefined, undefined, 0, undefined, undefined]]); chart.draw(data, { 'allowRedraw': true, 'allowHTML': true, 'displayAnnotations': true, 'displayExactValues': true, 'scaleColumns': [0, 1], 'scaleType': 'allfixed', 'legendPosition': 'newRow', 'numberFormats': {0:'$##.##', 1:'#0'}, 'colors': ['blue', 'orange'] }); I call chart.hideDataColumns(0); on a checkbox onclick event. when I paste this code into the code playground, it works fine. when I call the hideDataColumns from my onclick event function, I get an actionscript error. Any help would be appreciated. Thanks, Adam -- You received this message because you are subscribed to the Google Groups "Google Visualization API" group. To post to this group, send email to google-visualization-...@googlegroups.com. To unsubscribe from this group, send email to google-visualization-api+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-visualization-api?hl=en.