Hi can anybody assist me with why my code is breaking in IE 8
I get a red: Unable to get value of the property 'c': object is null or
undefined
I use a php page to display content which includes the chart in a div
I write the json data to a file:
//Build the chart file
$myFile = "dataMod.json";
$fh = fopen($myFile, 'w') or die("can't open file");
$stringData .= "{\n\"cols\":
[\n{\"id\":\"\",\"label\":\"Module\",\"pattern\":\"\",\"type\":\"string\"},\n";
$stringData .=
"{\"id\":\"\",\"label\":\"Result\",\"pattern\":\"\",\"type\":\"number\"}\n";
$stringData .= "],\n";
$stringData .= "\"rows\": [\n";
for($i=0;$i<count($results);$i++)
{
$stringData .=
"{\"c\":[{\"v\":\"".substr($labels[$i],0,47)."...\",\"f\":null},{\"v\":".$results[$i].",\"f\":null}]},\n";
}
$stringData .= "]\n";
$stringData .= "}\n";
fwrite($fh, $stringData);
fclose($fh);
I then build the chart with javascript, there are 2 charts displayed on the
page:
<script type="text/javascript" src="js/jsapi.js"></script>
<script type="text/javascript">
// Load the Visualization API and the piechart package.
google.load('visualization', '1', {'packages':['corechart']});
// Set a callback to run when the Google Visualization API is loaded.
google.setOnLoadCallback(drawChart);
google.setOnLoadCallback(drawChart1);
function drawChart() {
var jsonData = $.ajax({
url: "getData.php",
dataType:"json",
async: false
}).responseText;
// Create our data table out of JSON data loaded from server.
var data = new google.visualization.DataTable(jsonData);
// Instantiate and draw our chart, passing in some options.
var chart = new
google.visualization.ColumnChart(document.getElementById('chart_div'));
//chart.draw(data, {width: 550, height: 350});
chart.draw(data, {width: 550,
height: 350,
isStacked: true,
title: '<?php echo "Client Report: ".$surveyName; ?>',
colors: [<?php echo "'green'" ?>],
vAxis: {
title: 'Percentage',
viewWindowMode:'pretty',
viewWindow:{
max:100,
min:0
}
}
});
}
function drawChart1() {
var jsonData = $.ajax({
url: "getDataMod.php",
dataType:"json",
async: false
}).responseText;
// Create our data table out of JSON data loaded from server.
var data = new google.visualization.DataTable(jsonData);
// Instantiate and draw our chart, passing in some options.
var chart = new
google.visualization.ColumnChart(document.getElementById('chart_div1'));
//chart.draw(data, {width: 550, height: 350});
chart.draw(data, {width: 550,
height: 350,
isStacked: true,
title: '<?php echo "Evaluator Report: ".$surveyName; ?>',
colors: [<?php echo "'green'" ?>],
vAxis: {
title: 'Percentage',
viewWindowMode:'pretty',
viewWindow:{
max:100,
min:0
}
}
});
}
</script>
<div id="chart_div1"></div>
Everything works dandy with IE 9 and firefox, but IE 8 won't play nice.
Any help please
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