我的项目是 MVC 5,我正在使用以下内容生成具有多个系列的图表:
HTML:
<button data-bind="click: addItem">Add</button>
<button data-bind="click: removeItem">Remove</button>
<div data-bind="kendoChart2: { title: { text: 'Graph Sample' },
series: seriesConfig,tooltip: {visible: true,template: '#= series.name #: #= value #'} , seriesDefaults: {
type: 'line',style: 'smooth'}}"> </div>
Javascript
var MainViewModel = function () {
var self = this;
this.Systolic = ko.observableArray([]);
this.Diastolic = ko.observableArray([]);
this.HeartRate= ko.observableArray([]);
$.ajax({
type: "GET",
url: '/Charts/GetChart',
contentType: "application/json; charset=utf-8",
async: false,
cache: false,
dataType: "json",
success: function (result) {
//Diastolic
if (result && result.Systolic.length > 0) {
for (var i = 0; i < result.Systolic.length; i++) {
self.Systolic.push(result.Systolic[i].Systolic);
}
};
....
},
error: function (err) {
alert(err.status + " : " + err.statusText);
}});
this.seriesConfig = ko.observableArray([
{name: "Systolic", data: this.Systolic()},
{name: "Diastolic",data: this.Diastolic()}]);
this.addItem = function() {
this.seriesConfig.push({ name: "Heart Rate", data: this.HeartRate() });
};
this.removeItem = function() {
this.seriesConfig.remove({ name: "Diastolic", data: this.Diastolic() });
};
}.bind(this);
ko.kendo.bindingFactory.createBinding(
{
name: "kendoChart",
bindingName: "kendoChart2",
watch: {
data: function(value) {
ko.kendo.setDataSource(this, value);
},
series: function(value) {
this._sourceSeries = value;
this.refresh();
this.redraw();}
}
});
window.viewModel = new MainViewModel();
ko.applyBindings(window.viewModel);
图表效果很好,但无法添加或删除系列?
注意: addItem 有效,我得到了新系列的值:
series: function (value) {
alert(value[2].name);
this.seriesConfig = value;
this.refresh();
this.redraw();
}
我还尝试加载所有系列,然后使用以下隐藏系列:
$("#kendoChart").getKendoChart().options.series[1].visible = false;
$("#kendoChart").getKendoChart().redraw();
不起作用,我认为图表名称没有注册。