大家好,又见面了,我是你们的朋友全栈君。
Syntax:
<vc:Chart … >
<vc:Chart.Series>
<vc:DataSeries>
<vc:DataSeries.DataPoints>
<vc:DataPoint LabelText=”#AxisXLabel, #YValue” />
</vc:DataSeries.DataPoints>
</vc:DataSeries>
</vc:Chart.Series>
</vc:Chart>
Below is the chart after setting LabelText property:
Modifiers:
Modifier |
Description |
#AxisXLabel |
Returns the axis label value if axis labels is present for that XValue. Otherwise returns XValue. |
#Percentage |
Returns the percentage value with respect to DataPoints in that series. |
#Series |
Returns the series name. |
#Sum |
Returns sum of values in entire chart with same XValue. (Used for stacked charts only) |
#XValue |
Returns XValue. |
#YValue |
Returns YValue. |
#ZValue |
Returns ZValue. |
#Open |
Returns Open value. |
#Close |
Returns Close value. |
#High |
Returns High value. |
#Low |
Returns Low value. |
Remarks:
-
The above modifiers are applicable for LabelText set in DataPoint or DataSeries only.
-
Modifiers can be used in any combination to display DataPoint specific content.
-
To display the modifier itself use the ‘#’ twice. For example to display “#XValue” as label use LabelText=”##XValue”
-
The default value for LabelText in Pie/Doughnut and Funnel charts is “AxisXLabel, #YValue”.
-
The default value for LabelText in CandleStick and Stock charts is “#Close”.
-
The default value for LabelText in all other charts is “#YValue”.
-
For CandleStick and Stock charts, LabelText can be set as LabelText=”#Open, #Close, #High, #Low, #YValue”. For CandleStick and Stock charts, volume information can be stored in YValue property and can be showed as a LabelText for DataPoints. Note that YValue property is not being used in CandleStick and Stock charts.
-
For Stacked charts, percentage will be calculated from the DataPoints present in each XValue. In other words, percentage will be calculated for stacked DataPoints (in each XValue) from all series.
-
For CandleStick and Stock charts, percentage will be calculated for Closing price in DataPoints.
示例:
Chart chart = new Chart();
chart.ScrollingEnabled = true;
chart.View3D = false;
Title title = new Title();
title.Text = Title+”血型统计(按月分组)”;
chart.Titles.Add(title);
Axis axis = new Axis();
axis.IntervalType = IntervalTypes.Number;
axis.Suffix = “月”;
axis.Interval = 1;
axis.Title = “血型”;
chart.AxesX.Add(axis);
Axis yaxis = new Axis();
yaxis.Enabled = true;
// 坐标轴类型,可以是primary或secondary,这个属性只能用于Y轴,只有在设置了DataSeries的AxisYType属性后才会启用
yaxis.AxisType = AxisTypes.Primary;
chart.AxesY.Add(yaxis);
//血型总共5个种类:A,B,AB,O,未知
string[] bloodType = new string[5] { “A”, “B”, “AB”, “O”, “未知” };
int[] months = new int[12] {1,2,3,4,5,6,7,8,9,10,11,12};
for (Int32 j = 0; j < bloodType.Length; j++)
{
DataSeries dataSeries = new DataSeries();
string blood=bloodType[j];
dataSeries.Name = blood;
dataSeries.RenderAs = RenderAs.Column;
dataSeries.ShowInLegend = true;
dataSeries.XValueType = ChartValueTypes.Numeric;
dataSeries.ToolTipText = “#Series型血,袋数:#YValue,#AxisXLabel”;
DataPoint dataPoint;
for (int i = 0; i < months.Length; i++)
{
dataPoint = new DataPoint();
int month = months[i];
dataPoint.XValue = month;
int count = 0;
if (j == 4)
{
count = list.Where(a => string.IsNullOrWhiteSpace(a.BloodType) && a.FiltrDate.Month.Equals(month)).Count();
}
else
{
count = list.Where(a => a.BloodType == blood && a.FiltrDate.Month.Equals(month)).Count();
}
if (count > 0)
{
dataPoint.LabelEnabled = true;
dataPoint.LabelStyle = LabelStyles.OutSide;
}
else
{
dataPoint.LabelEnabled = false;
}
dataPoint.YValue=count;
dataSeries.DataPoints.Add(dataPoint);
}
chart.Series.Add(dataSeries);
}
BloodChart.Children.Add(chart);
发布者:全栈程序员-用户IM,转载请注明出处:https://javaforall.cn/162776.html原文链接:https://javaforall.cn
【正版授权,激活自己账号】: Jetbrains全家桶Ide使用,1年售后保障,每天仅需1毛
【官方授权 正版激活】: 官方授权 正版激活 支持Jetbrains家族下所有IDE 使用个人JB账号...