yes, i have a CategoryFilter,but the result shows blank page
source from php
{"cols":[{"label":"Item","type":"string"},{"label":"Type","type":"string"},{"label":"Value","type":"number"}],"rows":[{"c":[{"v":"A"},{"v":"Very
Good"},{"v":"80"}]},{"c":[{"v":"A"},{"v":"Good"},{"v":"70"}]},{"c":[{"v":"A"},{"v":"Not
Good"},{"v":"50"}]},{"c":[{"v":"B"},{"v":"Very
Good"},{"v":"85"}]},{"c":[{"v":"B"},{"v":"Good"},{"v":"77"}]},{"c":[{"v":"B"},{"v":"Not
Good"},{"v":"40"}]},{"c":[{"v":"C"},{"v":"Very
Good"},{"v":"90"}]},{"c":[{"v":"C"},{"v":"Good"},{"v":"70"}]},{"c":[{"v":"C"},{"v":"Not
Good"},{"v":"44"}]}]}
goo3.html
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" type="text/css" href="tryit.css" />
<meta charset="utf-8">
<script type="text/javascript"
src="http://www.google.com/jsapi";></script>
<script
src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js" ></script>
<script type="text/javascript">
google.load('visualization', '1', {packages: ['corechart']});
google.setOnLoadCallback(drawChart);
function drawChart() {
var jsonData =$.ajax({
url: "Item.php",
dataType:"json",
async: false
}).responseText;
var data = new google.visualization.DataTable(jsonData);
var columnsTable = new google.visualization.DataTable();
columnsTable.addColumn('number', 'colIndex');
columnsTable.addColumn('string', 'colLabel');
var initState= {selectedValues: []};
// put the columns into this data table (skip column 0)
for (var i = 2; i < data.getNumberOfColumns(); i++) {
columnsTable.addRow([i, data.getColumnLabel(i)]);
initState.selectedValues.push(data.getColumnLabel(i));
}
var chart = new google.visualization.ChartWrapper({
chartType: 'PieChart',
containerId: 'chart_div',
options: {
title: 'Percentage',
width: 750,
height: 400
},
view: {
columns: [1,2]
}
});
var ItemFilter = new google.visualization.ControlWrapper({
controlType: 'CategoryFilter',
containerId: 'ItemFilter_div',
options: {
filterColumnLabel: 'Item',
ui: {
label: 'Item',
allowTyping: false,
allowMultiple: false,
selectedValuesLayout: 'belowStacked'
}
}
});
var dashboard = new
google.visualization.PieChart(document.getElementById('dash_div'));
dashboard.bind([ItemFilter], [chart]);
dashboard.draw(data);
}
</script>
</head>
<body style="font-family: Arial;border: 0 none;">
<div id="dash_div">
<div id="ItemFilter_div" style="float: left;"></div>
<div style="clear: both;"></div>
<div id="chart_div"></div>
</div>
</body>
</html>
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