你好,我希望你能看到这个,我对此有疑问当我添加这个
type: 'string',
role: 'style',
calc: 'stringify',
sourceColumn: 1,
role: 'annotation'
它正在工作并在条形图上显示值,但它为我提供了所有具有一种颜色的条形。看到我的剧本,你就会站起来谢谢 :)它可以正常工作并在条形图上显示其值,但是它为我提供了一种颜色的所有条形。看到我的剧本,你就会站起来谢谢:)
<script type="text/javascript">
google.charts.load('current', {packages: ['corechart']});
google.charts.setOnLoadCallback(drawChart);
function drawChart() {
var options = {
title: 'Suivi GTR',
width: 1200,
height: 500,
bar: { groupWidth: "95%" },
seriesType: 'bars',
series: { 5: { type: 'line' } },
colors: ['#ff7900', '#50be87', '#4bb4e6'],
legend: 'none',
};
$.ajax({
type: "POST",
url: "SuiviGTR.aspx/GetChartData",
data: '{}',
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function (r) {
var data = google.visualization.arrayToDataTable(r.d);
var view = new google.visualization.DataView(data);
view.setColumns([
0, 1, {
calc: function (dt, row) {
var category = dt.getValue(row, 0);
var color;
switch (category) {
case 'encours':
color = '#ff7900';
break;
case 'gele':
color = '#50be87';
break;
case 'clos':
color = '#4bb4e6';
break;
}
return color;
},
type: 'string',
role: 'style',
calc: 'stringify',
sourceColumn: 1,
role: 'annotation'
}
]);
var chart = new google.visualization.BarChart($("#chart_div")[0]);
chart.draw(view, options);
},
failure: function (r) {
alert(r.d);
},
error: function (r) {
alert(r.d);
}
});
}
</script>
如果您要使用样式和注释角色,您需要两个计算列...
view.setColumns([
0, 1, {
calc: function (dt, row) {
var category = dt.getValue(row, 0);
var color;
switch (category) {
case 'encours':
color = '#ff7900';
break;
case 'gele':
color = '#50be87';
break;
case 'clos':
color = '#4bb4e6';
break;
}
return color;
},
type: 'string',
role: 'style'
}, {
calc: 'stringify',
sourceColumn: 1,
role: 'annotation',
type: 'string'
}
]);