如何修改Chart.js工具提示以添加自定义属性 [英] How to modify chartjs tooltip to add customized attribute
本文介绍了如何修改Chart.js工具提示以添加自定义属性的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我如何编辑工具提示模板,以便可以从json文件添加自定义属性?在示例下方:
脚本
function Label(short,long){
this.short = short;
this.long = long
}
Label.prototype.toString = function(){
返回this.short;
}
var data = {
标签:[
新Label( J, JAN),
新Label( F , FEB),
个新标签( M, MAR),
个新标签( A, APR),
个新标签( M, MAY),
新标签( J, JUN),
新标签( J, JUL)
],
数据集:[
{
标签:我的第一个数据集,
fillColor: rgba(220,220,220,0.5),
strokeColor: rgba(220,220,220,0.8),
HighlightFill : rgba(220,220,220,0.75),
高亮描边: rgba(220,220,220,1),
数据:[65、59、80、81、56、55、40]
}
]
};
//创建图表
var ctx = document.getElementById( chart)。getContext(’2d’);
new Chart(ctx).Bar(data,{
tooltipTemplate:<%if(label){%><%= label.long%> ;:<%}%> ;<%= value%>,
});
提琴手- https://jsfiddle.net/7z1s1feg/
How I have to edit the tooltip template that i can add customized attributes from my json file ? Below the example:
In the x-axis are the Months with the first letter, but in the tooltip i want to show the first three letters of the month - How can i do this ?
EDIT: My JSON File:
{"modules":[{
"name":"Chart 1",
"link":"www.google.com",
"type":"Bar",
"series":"SeriesA",
"data":[[20,40,50,40,20,20,20,20,20,20,20,20]],
"labels":["M","J","J","A","S","O","N","D","J","F","M","A","M"],
"colors":[{
"fillColor":"blue"
}],
"options":{
"scaleShowGridLines":false
}
}]}
解决方案
Different Labels in Tooltip vs Scale
Just use the tooltipTemplate
option
Preview
Script
function Label(short, long) {
this.short = short;
this.long = long
}
Label.prototype.toString = function() {
return this.short;
}
var data = {
labels: [
new Label("J", "JAN"),
new Label("F", "FEB"),
new Label("M", "MAR"),
new Label("A", "APR"),
new Label("M", "MAY"),
new Label("J", "JUN"),
new Label("J", "JUL")
],
datasets: [
{
label: "My First dataset",
fillColor: "rgba(220,220,220,0.5)",
strokeColor: "rgba(220,220,220,0.8)",
highlightFill: "rgba(220,220,220,0.75)",
highlightStroke: "rgba(220,220,220,1)",
data: [65, 59, 80, 81, 56, 55, 40]
}
]
};
// create chart
var ctx = document.getElementById("chart").getContext('2d');
new Chart(ctx).Bar(data, {
tooltipTemplate: "<%if (label){%><%=label.long%>: <%}%><%= value %>",
});
Fiddle - https://jsfiddle.net/7z1s1feg/
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