Javascript 来自Json的谷歌图表;“未定义”不是一个函数;
我第一次尝试使用谷歌图表。我的Json如下所示Javascript 来自Json的谷歌图表;“未定义”不是一个函数;,javascript,json,google-visualization,Javascript,Json,Google Visualization,我第一次尝试使用谷歌图表。我的Json如下所示 {\"cols\":[{\"id\":\"Date\",\"label\":\"Date\",\"type\":\"date\"},{\"id\":\"KeywordCount\",\"label\":\"count\",\"type\":\"number\"}],\"rows\":[{\"c\": [{\"v\":\"new Date(2014725)\",\"f\":\"25 July 2014\"},{\"v\":\"77\",\"f\":\
{\"cols\":[{\"id\":\"Date\",\"label\":\"Date\",\"type\":\"date\"},{\"id\":\"KeywordCount\",\"label\":\"count\",\"type\":\"number\"}],\"rows\":[{\"c\":
[{\"v\":\"new Date(2014725)\",\"f\":\"25 July 2014\"},{\"v\":\"77\",\"f\":\"77\"}]},{\"c\":
[{\"v\":\"new Date(2014724)\",\"f\":\"24 July 2014\"},{\"v\":\"101\",\"f\":\"101\"}]},{\"c\":
[{\"v\":\"new Date(2014723)\",\"f\":\"23 July 2014\"},{\"v\":\"100\",\"f\":\"100\"}]},{\"c\":
[{\"v\":\"new Date(2014722)\",\"f\":\"22 July 2014\"},
{\"v\":\"130\",\"f\":\"130\"}]}],\"p\":null}
这对我来说很好,我无法找出我遗漏了什么,因为我只能在图表中看到一个错误(“未定义不是函数”)。我的谷歌图表javascript文件是
google.load('visualization', '1', { 'packages': ['corechart'] });
var postDate = $('#ReportingWall').serialize();
function drawChartAll() {
var jsonData = $.ajax({
url: '/ReportingWall/analyseStats/',
type: 'POST',
data: postDate,
dataType: 'json',
async: false,
success: function (response) {
}
}).responseText;
var data = new google.visualization.DataTable(jsonData);
console.debug(jsonData);
console.debug(data);
var chart = new google.visualization.LineChart(document.getElementById('charts_all'));
chart.draw(data, options);
var columns = [];
var series = {};
for (var i = 0; i < data.getNumberOfColumns() ; i++) {
columns.push(i);
if (i > 0) {
series[i - 1] = {};
}
}
var options = {
title: 'Keywords:',
width: 908,
legend: {
position: 'right'
},
legendFontSize: 14,
chartArea: {
left: 50,
width: '80%'
},
series: series
}
google.visualization.events.addListener(chart, 'select', function () {
var sel = chart.getSelection();
// if selection length is 0, we deselected an element
if (sel.length > 0) {
// if row is undefined, we clicked on the legend
if (sel[0].row === null) {
var col = sel[0].column;
if (columns[col] == col) {
// hide the data series
columns[col] = {
label: data.getColumnLabel(col),
type: data.getColumnType(col),
calc: function () {
return null;
}
};
// grey out the legend entry
series[col - 1].color = '#CCCCCC';
} else {
// show the data series
columns[col] = col;
series[col - 1].color = null;
}
var view = new google.visualization.DataView(data);
view.setColumns(columns);
chart.draw(view, options);
}
}
});
}
google.load('visualization','1',{'packages':['corechart']});
var postDate=$(“#ReportingWall”).serialize();
函数drawChartAll(){
var jsonData=$.ajax({
url:“/ReportingWall/analyseStats/”,
键入:“POST”,
数据:postDate,
数据类型:“json”,
async:false,
成功:功能(响应){
}
}).responseText;
var data=新的google.visualization.DataTable(jsonData);
调试(jsonData);
调试(数据);
var chart=new google.visualization.LineChart(document.getElementById('charts_all');
图表绘制(数据、选项);
var列=[];
var级数={};
对于(var i=0;i0){
系列[i-1]={};
}
}
变量选项={
标题:“关键字:”,
宽度:908,
图例:{
位置:'右'
},
legendFontSize:14,
图表区:{
左:50,,
宽度:“80%”
},
系列:系列
}
google.visualization.events.addListener(图表,'select',函数(){
var sel=chart.getSelection();
//如果选择长度为0,则取消选择一个元素
如果(选择长度>0){
//如果行未定义,则单击图例
如果(sel[0]。行===null){
var col=sel[0]。列;
if(列[col]==col){
//隐藏数据系列
列[col]={
标签:data.getColumnLabel(col),
类型:data.getColumnType(col),
计算:函数(){
返回null;
}
};
//灰色显示图例条目
系列[col-1]。颜色='#cccc';
}否则{
//显示数据系列
列[col]=col;
系列[col-1]。颜色=null;
}
var view=newgoogle.visualization.DataView(数据);
view.setColumns(列);
图表绘制(视图、选项);
}
}
});
}
如果你稍微清理一下,你可以在最后一行看到一个无用的“as last char”
{"cols":[
{"id":"Date","label":"Date","type":"date"},
{"id":"KeywordCount","label":"count","type":"number"}],
"rows":[
{"c":[{"v":"new Date(2014725)","f":"25 July 2014"},{"v":"77","f":"77"}]},
{"c":[{"v":"new Date(2014724)","f":"24 July 2014"},{"v":"101","f":"101"}]},
{"c":[{"v":"new Date(2014723)","f":"23 July 2014"},{"v":"100","f":"100"}]},
{"c":[{"v":"new Date(2014722)","f":"22 July 2014"},{"v":"130","f":"130"}]}],
"p":null}"
还可以从一个类似PHP的示例开始
还是这个ajax
在DataTable JSON结构中使用日期时,必须省略
new
关键字;您正在构造可视化API将解析为日期对象的字符串,而不是构造日期对象本身
{
"cols":[
{"id":"Date","label":"Date","type":"date"},
{"id":"KeywordCount","label":"count","type":"number"}
],
"rows":[
{"c":[{"v":"Date(2014725)","f":"25 July 2014"},{"v":77,"f":"77"}]},
{"c":[{"v":"Date(2014724)","f":"24 July 2014"},{"v":101,"f":"101"}]},
{"c":[{"v":"Date(2014723)","f":"23 July 2014"},{"v":100,"f":"100"}]},
{"c":[{"v":"Date(2014722)","f":"22 July 2014"},{"v":130,"f":"130"}]}
],
"p":null
}