我正在.net核心项目中使用Chart.js制作条形图,但无法设置Y轴标签。
这是我想要的示例,数量标签向左对齐。
https://drive.google.com/open?id=1AUgNaBU5BGVqzg4GJBtcs2mtDePORPYV
这是我的JS代码。
var chartBar = document.getElementById('barChart').getContext('2d');
var chartBar = document.getElementById('barChart').getContext('2d');
var bar = new Chart(chartBar, {
type: 'bar',
data: {
labels: ['', '', '', '', '', '', '', '', '', '', '', ''],
datasets: [{
label: 'Cantidad',
data: [2, 4, 6, 7, 8, 4, 23, 13, 5, 20, 4],
backgroundColor: 'rgba(209, 74, 88)',
}]
},
options: {}
});
答案 0 :(得分:0)
有一种解决方法,您可以用下面显示的代码中的任何值填充ctx。
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.7.2/Chart.bundle.min.js"></script>
<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
<script type="text/javascript">
$(function () {
var chartBar = document.getElementById('barChart').getContext('2d');
var data = {
labels: ['', '', '', '', '', '', '', '', '', '', '', ''],
datasets: [{
label: 'Cantidad',
data: [2, 4, 6, 7, 8, 4, 23, 13, 5, 20, 4],
backgroundColor: 'rgba(209, 74, 88)',
}]
};
var options = {
maintainAspectRatio: false,
scales: {
yAxes: [{
ticks: {
min: 0,
beginAtZero: true,
},
gridLines: {
display: true,
color: "rgba(255,99,164,0.2)"
},
scaleLabel: {
display: true,
labelString:""
}
}]
},
animation: {
duration: 1,
onComplete: function () {
chartBar.fillStyle = "black";
chartBar.fillText('Quantity', 50, 18);
}
}
};
var myChart = new Chart(chartBar, {
options: options,
data: data,
type:'line'
});
});
</script>
参考:
https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/fillText
https://www.chartjs.org/docs/latest/configuration/animations.html